Commit for development environment setup
This commit is contained in:
@@ -0,0 +1,230 @@
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using System;
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using System.Collections.Generic;
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using System.Reflection;
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using System.ComponentModel;
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using Csla.Properties;
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namespace Csla.Data
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{
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/// <summary>
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/// Map data from a source into a target object
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/// by copying public property values.
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/// </summary>
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/// <remarks></remarks>
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public static class DataMapper
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{
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#region Map from IDictionary
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/// <summary>
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/// Copies values from the source into the
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/// properties of the target.
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/// </summary>
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/// <param name="source">A name/value dictionary containing the source values.</param>
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/// <param name="target">An object with properties to be set from the dictionary.</param>
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/// <remarks>
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/// The key names in the dictionary must match the property names on the target
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/// object. Target properties may not be readonly or indexed.
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/// </remarks>
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public static void Map(System.Collections.IDictionary source, object target)
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{
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Map(source, target, false);
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}
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/// <summary>
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/// Copies values from the source into the
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/// properties of the target.
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/// </summary>
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/// <param name="source">A name/value dictionary containing the source values.</param>
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/// <param name="target">An object with properties to be set from the dictionary.</param>
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/// <param name="ignoreList">A list of property names to ignore.
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/// These properties will not be set on the target object.</param>
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/// <remarks>
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/// The key names in the dictionary must match the property names on the target
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/// object. Target properties may not be readonly or indexed.
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/// </remarks>
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public static void Map(System.Collections.IDictionary source, object target, params string[] ignoreList)
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{
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Map(source, target, false, ignoreList);
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}
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/// <summary>
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/// Copies values from the source into the
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/// properties of the target.
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/// </summary>
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/// <param name="source">A name/value dictionary containing the source values.</param>
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/// <param name="target">An object with properties to be set from the dictionary.</param>
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/// <param name="ignoreList">A list of property names to ignore.
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/// These properties will not be set on the target object.</param>
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/// <param name="suppressExceptions">If <see langword="true" />, any exceptions will be supressed.</param>
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/// <remarks>
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/// The key names in the dictionary must match the property names on the target
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/// object. Target properties may not be readonly or indexed.
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/// </remarks>
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public static void Map(
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System.Collections.IDictionary source,
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object target, bool suppressExceptions,
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params string[] ignoreList)
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{
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List<string> ignore = new List<string>(ignoreList);
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foreach (string propertyName in source.Keys)
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{
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if (!ignore.Contains(propertyName))
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{
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try
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{
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SetPropertyValue(target, propertyName, source[propertyName]);
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}
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catch (Exception ex)
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{
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if (!suppressExceptions)
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throw new ArgumentException(
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String.Format("{0} ({1})",
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Resources.PropertyCopyFailed, propertyName), ex);
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}
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}
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}
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}
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#endregion
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#region Map from Object
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/// <summary>
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/// Copies values from the source into the
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/// properties of the target.
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/// </summary>
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/// <param name="source">An object containing the source values.</param>
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/// <param name="target">An object with properties to be set from the dictionary.</param>
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/// <remarks>
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/// The property names and types of the source object must match the property names and types
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/// on the target object. Source properties may not be indexed.
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/// Target properties may not be readonly or indexed.
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/// </remarks>
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public static void Map(object source, object target)
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{
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Map(source, target, false);
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}
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/// <summary>
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/// Copies values from the source into the
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/// properties of the target.
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/// </summary>
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/// <param name="source">An object containing the source values.</param>
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/// <param name="target">An object with properties to be set from the dictionary.</param>
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/// <param name="ignoreList">A list of property names to ignore.
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/// These properties will not be set on the target object.</param>
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/// <remarks>
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/// The property names and types of the source object must match the property names and types
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/// on the target object. Source properties may not be indexed.
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/// Target properties may not be readonly or indexed.
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/// </remarks>
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public static void Map(object source, object target, params string[] ignoreList)
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{
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Map(source, target, false, ignoreList);
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}
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/// <summary>
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/// Copies values from the source into the
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/// properties of the target.
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/// </summary>
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/// <param name="source">An object containing the source values.</param>
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/// <param name="target">An object with properties to be set from the dictionary.</param>
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/// <param name="ignoreList">A list of property names to ignore.
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/// These properties will not be set on the target object.</param>
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/// <param name="suppressExceptions">If <see langword="true" />, any exceptions will be supressed.</param>
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/// <remarks>
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/// <para>
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/// The property names and types of the source object must match the property names and types
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/// on the target object. Source properties may not be indexed.
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/// Target properties may not be readonly or indexed.
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/// </para><para>
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/// Properties to copy are determined based on the source object. Any properties
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/// on the source object marked with the <see cref="BrowsableAttribute"/> equal
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/// to false are ignored.
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/// </para>
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/// </remarks>
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public static void Map(
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object source, object target,
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bool suppressExceptions,
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params string[] ignoreList)
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{
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List<string> ignore = new List<string>(ignoreList);
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PropertyInfo[] sourceProperties =
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GetSourceProperties(source.GetType());
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foreach (PropertyInfo sourceProperty in sourceProperties)
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{
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string propertyName = sourceProperty.Name;
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if (!ignore.Contains(propertyName))
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{
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try
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{
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SetPropertyValue(
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target, propertyName,
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sourceProperty.GetValue(source, null));
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}
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catch (Exception ex)
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{
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if (!suppressExceptions)
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throw new ArgumentException(
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String.Format("{0} ({1})",
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Resources.PropertyCopyFailed, propertyName), ex);
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}
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}
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}
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}
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private static PropertyInfo[] GetSourceProperties(Type sourceType)
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{
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List<PropertyInfo> result = new List<PropertyInfo>();
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PropertyDescriptorCollection props =
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TypeDescriptor.GetProperties(sourceType);
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foreach (PropertyDescriptor item in props)
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if (item.IsBrowsable)
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result.Add(sourceType.GetProperty(item.Name));
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return result.ToArray();
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}
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#endregion
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/// <summary>
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/// Sets an object's property with the specified value,
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/// coercing that value to the appropriate type if possible.
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/// </summary>
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/// <param name="target">Object containing the property to set.</param>
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/// <param name="propertyName">Name of the property to set.</param>
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/// <param name="value">Value to set into the property.</param>
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public static void SetPropertyValue(
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object target, string propertyName, object value)
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{
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PropertyInfo propertyInfo =
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target.GetType().GetProperty(propertyName);
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if (value == null)
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propertyInfo.SetValue(target, value, null);
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else
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{
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Type pType =
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Utilities.GetPropertyType(propertyInfo.PropertyType);
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Type vType =
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Utilities.GetPropertyType(value.GetType());
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if (pType.Equals(vType))
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{
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// types match, just copy value
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propertyInfo.SetValue(target, value, null);
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}
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else
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{
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// types don't match, try to coerce
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if (pType.Equals(typeof(Guid)))
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propertyInfo.SetValue(
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target, new Guid(value.ToString()), null);
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else if (pType.IsEnum && vType.Equals(typeof(string)))
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propertyInfo.SetValue(target, Enum.Parse(pType, value.ToString()), null);
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else
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propertyInfo.SetValue(
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target, Convert.ChangeType(value, pType), null);
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}
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}
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}
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}
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}
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@@ -0,0 +1,267 @@
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Data;
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using System.ComponentModel;
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using System.Reflection;
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using Csla.Properties;
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namespace Csla.Data
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{
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/// <summary>
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/// An ObjectAdapter is used to convert data in an object
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/// or collection into a DataTable.
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/// </summary>
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public class ObjectAdapter
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{
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/// <summary>
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/// Fills the DataSet with data from an object or collection.
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/// </summary>
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/// <remarks>
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/// The name of the DataTable being filled is will be the class name of
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/// the object acting as the data source. The
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/// DataTable will be inserted if it doesn't already exist in the DataSet.
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/// </remarks>
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/// <param name="ds">A reference to the DataSet to be filled.</param>
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/// <param name="source">A reference to the object or collection acting as a data source.</param>
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public void Fill(DataSet ds, object source)
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{
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string className = source.GetType().Name;
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Fill(ds, className, source);
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}
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/// <summary>
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/// Fills the DataSet with data from an object or collection.
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/// </summary>
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/// <remarks>
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/// The name of the DataTable being filled is specified as a parameter. The
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/// DataTable will be inserted if it doesn't already exist in the DataSet.
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/// </remarks>
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/// <param name="ds">A reference to the DataSet to be filled.</param>
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/// <param name="tableName"></param>
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/// <param name="source">A reference to the object or collection acting as a data source.</param>
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public void Fill(DataSet ds, string tableName, object source)
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{
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DataTable dt;
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bool exists;
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dt = ds.Tables[tableName];
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exists = (dt != null);
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if (!exists)
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dt = new DataTable(tableName);
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Fill(dt, source);
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if (!exists)
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ds.Tables.Add(dt);
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}
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/// <summary>
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/// Fills a DataTable with data values from an object or collection.
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/// </summary>
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/// <param name="dt">A reference to the DataTable to be filled.</param>
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/// <param name="source">A reference to the object or collection acting as a data source.</param>
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public void Fill(DataTable dt, object source)
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{
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if (source == null)
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throw new ArgumentException(Resources.NothingNotValid);
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// get the list of columns from the source
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List<string> columns = GetColumns(source);
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if (columns.Count < 1) return;
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// create columns in DataTable if needed
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foreach (string column in columns)
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if (!dt.Columns.Contains(column))
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dt.Columns.Add(column);
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// get an IList and copy the data
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CopyData(dt, GetIList(source), columns);
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}
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#region DataCopyIList
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private IList GetIList(object source)
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{
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if (source is IListSource)
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return ((IListSource)source).GetList();
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else if (source is IList)
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return source as IList;
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else
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{
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// this is a regular object - create a list
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ArrayList col = new ArrayList();
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col.Add(source);
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return col;
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}
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}
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes")]
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private void CopyData(
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DataTable dt, IList ds, List<string> columns)
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{
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// load the data into the DataTable
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dt.BeginLoadData();
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for (int index = 0; index < ds.Count; index++)
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{
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DataRow dr = dt.NewRow();
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foreach (string column in columns)
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{
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try
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{
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dr[column] = GetField(ds[index], column);
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}
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catch (Exception ex)
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{
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dr[column] = ex.Message;
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}
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}
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dt.Rows.Add(dr);
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}
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dt.EndLoadData();
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}
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#endregion
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#region GetColumns
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private List<string> GetColumns(object source)
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{
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List<string> result;
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// first handle DataSet/DataTable
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object innerSource;
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IListSource iListSource = source as IListSource;
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if (iListSource != null)
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innerSource = iListSource.GetList();
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else
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innerSource = source;
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DataView dataView = innerSource as DataView;
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if (dataView != null)
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result = ScanDataView(dataView);
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else
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{
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// now handle lists/arrays/collections
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IEnumerable iEnumerable = innerSource as IEnumerable;
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if (iEnumerable != null)
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{
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Type childType = Utilities.GetChildItemType(
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innerSource.GetType());
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result = ScanObject(childType);
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}
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else
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{
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// the source is a regular object
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result = ScanObject(innerSource.GetType());
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}
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}
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return result;
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}
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private List<string> ScanDataView(DataView ds)
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{
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List<string> result = new List<string>();
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for (int field = 0; field < ds.Table.Columns.Count; field++)
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result.Add(ds.Table.Columns[field].ColumnName);
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return result;
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}
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private List<string> ScanObject(Type sourceType)
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{
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List<string> result = new List<string>();
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if (sourceType != null)
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{
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// retrieve a list of all public properties
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PropertyInfo[] props = sourceType.GetProperties();
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if (props.Length >= 0)
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for (int column = 0; column < props.Length; column++)
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if (props[column].CanRead)
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result.Add(props[column].Name);
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// retrieve a list of all public fields
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FieldInfo[] fields = sourceType.GetFields();
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if (fields.Length >= 0)
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for (int column = 0; column < fields.Length; column++)
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result.Add(fields[column].Name);
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}
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return result;
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}
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#endregion
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#region GetField
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private static string GetField(object obj, string fieldName)
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{
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string result;
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DataRowView dataRowView = obj as DataRowView;
|
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if (dataRowView != null)
|
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{
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// this is a DataRowView from a DataView
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result = dataRowView[fieldName].ToString();
|
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}
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else if (obj is ValueType && obj.GetType().IsPrimitive)
|
||||
{
|
||||
// this is a primitive value type
|
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result = obj.ToString();
|
||||
}
|
||||
else
|
||||
{
|
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string tmp = obj as string;
|
||||
if (tmp != null)
|
||||
{
|
||||
// this is a simple string
|
||||
result = (string)obj;
|
||||
}
|
||||
else
|
||||
{
|
||||
// this is an object or Structure
|
||||
try
|
||||
{
|
||||
Type sourceType = obj.GetType();
|
||||
|
||||
// see if the field is a property
|
||||
PropertyInfo prop = sourceType.GetProperty(fieldName);
|
||||
|
||||
if ((prop == null) || (!prop.CanRead))
|
||||
{
|
||||
// no readable property of that name exists -
|
||||
// check for a field
|
||||
FieldInfo field = sourceType.GetField(fieldName);
|
||||
if (field == null)
|
||||
{
|
||||
// no field exists either, throw an exception
|
||||
throw new DataException(
|
||||
Resources.NoSuchValueExistsException +
|
||||
" " + fieldName);
|
||||
}
|
||||
else
|
||||
{
|
||||
// got a field, return its value
|
||||
result = field.GetValue(obj).ToString();
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
// found a property, return its value
|
||||
result = prop.GetValue(obj, null).ToString();
|
||||
}
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
throw new DataException(
|
||||
Resources.ErrorReadingValueException +
|
||||
" " + fieldName, ex);
|
||||
}
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,761 @@
|
||||
using System;
|
||||
using System.Data;
|
||||
|
||||
namespace Csla.Data
|
||||
{
|
||||
/// <summary>
|
||||
/// This is a DataReader that 'fixes' any null values before
|
||||
/// they are returned to our business code.
|
||||
/// </summary>
|
||||
public class SafeDataReader : IDataReader
|
||||
{
|
||||
private IDataReader _dataReader;
|
||||
|
||||
/// <summary>
|
||||
/// Get a reference to the underlying data reader
|
||||
/// object that actually contains the data from
|
||||
/// the data source.
|
||||
/// </summary>
|
||||
protected IDataReader DataReader
|
||||
{
|
||||
get { return _dataReader; }
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Initializes the SafeDataReader object to use data from
|
||||
/// the provided DataReader object.
|
||||
/// </summary>
|
||||
/// <param name="dataReader">The source DataReader object containing the data.</param>
|
||||
public SafeDataReader(IDataReader dataReader)
|
||||
{
|
||||
_dataReader = dataReader;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a string value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns empty string for null.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public string GetString(string name)
|
||||
{
|
||||
return GetString(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a string value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns empty string for null.
|
||||
/// </remarks>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual string GetString(int i)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return string.Empty;
|
||||
else
|
||||
return _dataReader.GetString(i);
|
||||
}
|
||||
|
||||
|
||||
/// <summary>
|
||||
/// Gets a value of type <see cref="System.Object" /> from the datareader.
|
||||
/// </summary>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public object GetValue(string name)
|
||||
{
|
||||
return GetValue(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a value of type <see cref="System.Object" /> from the datareader.
|
||||
/// </summary>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual object GetValue(int i)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return null;
|
||||
else
|
||||
return _dataReader.GetValue(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets an integer from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public int GetInt32(string name)
|
||||
{
|
||||
return GetInt32(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets an integer from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual int GetInt32(int i)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return 0;
|
||||
else
|
||||
return _dataReader.GetInt32(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a double from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public double GetDouble(string name)
|
||||
{
|
||||
return GetDouble(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a double from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual double GetDouble(int i)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return 0;
|
||||
else
|
||||
return _dataReader.GetDouble(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a <see cref="SmartDate" /> from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// A null is converted into min possible date
|
||||
/// See Chapter 5 for more details on the SmartDate class.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public Csla.SmartDate GetSmartDate(string name)
|
||||
{
|
||||
return GetSmartDate(_dataReader.GetOrdinal(name), true);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a <see cref="SmartDate" /> from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// A null is converted into the min possible date
|
||||
/// See Chapter 5 for more details on the SmartDate class.
|
||||
/// </remarks>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual Csla.SmartDate GetSmartDate(int i)
|
||||
{
|
||||
return GetSmartDate(i, true);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a <see cref="SmartDate" /> from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// A null is converted into either the min or max possible date
|
||||
/// depending on the MinIsEmpty parameter. See Chapter 5 for more
|
||||
/// details on the SmartDate class.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
/// <param name="minIsEmpty">
|
||||
/// A flag indicating whether the min or max
|
||||
/// value of a data means an empty date.</param>
|
||||
public Csla.SmartDate GetSmartDate(string name, bool minIsEmpty)
|
||||
{
|
||||
return GetSmartDate(_dataReader.GetOrdinal(name), minIsEmpty);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a <see cref="SmartDate"/> from the datareader.
|
||||
/// </summary>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
/// <param name="minIsEmpty">
|
||||
/// A flag indicating whether the min or max
|
||||
/// value of a data means an empty date.</param>
|
||||
public virtual Csla.SmartDate GetSmartDate(
|
||||
int i, bool minIsEmpty)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return new Csla.SmartDate(minIsEmpty);
|
||||
else
|
||||
return new Csla.SmartDate(
|
||||
_dataReader.GetDateTime(i), minIsEmpty);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a Guid value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns Guid.Empty for null.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public System.Guid GetGuid(string name)
|
||||
{
|
||||
return GetGuid(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a Guid value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns Guid.Empty for null.
|
||||
/// </remarks>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual System.Guid GetGuid(int i)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return Guid.Empty;
|
||||
else
|
||||
return _dataReader.GetGuid(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Reads the next row of data from the datareader.
|
||||
/// </summary>
|
||||
public bool Read()
|
||||
{
|
||||
return _dataReader.Read();
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Moves to the next result set in the datareader.
|
||||
/// </summary>
|
||||
public bool NextResult()
|
||||
{
|
||||
return _dataReader.NextResult();
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Closes the datareader.
|
||||
/// </summary>
|
||||
public void Close()
|
||||
{
|
||||
_dataReader.Close();
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Returns the depth property value from the datareader.
|
||||
/// </summary>
|
||||
public int Depth
|
||||
{
|
||||
get
|
||||
{
|
||||
return _dataReader.Depth;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Returns the FieldCount property from the datareader.
|
||||
/// </summary>
|
||||
public int FieldCount
|
||||
{
|
||||
get
|
||||
{
|
||||
return _dataReader.FieldCount;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a boolean value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns <see langword="false" /> for null.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public bool GetBoolean(string name)
|
||||
{
|
||||
return GetBoolean(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a boolean value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns <see langword="false" /> for null.
|
||||
/// </remarks>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual bool GetBoolean(int i)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return false;
|
||||
else
|
||||
return _dataReader.GetBoolean(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a byte value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public byte GetByte(string name)
|
||||
{
|
||||
return GetByte(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a byte value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual byte GetByte(int i)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return 0;
|
||||
else
|
||||
return _dataReader.GetByte(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Invokes the GetBytes method of the underlying datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
/// <param name="buffer">Array containing the data.</param>
|
||||
/// <param name="bufferOffset">Offset position within the buffer.</param>
|
||||
/// <param name="fieldOffset">Offset position within the field.</param>
|
||||
/// <param name="length">Length of data to read.</param>
|
||||
public Int64 GetBytes(string name, Int64 fieldOffset,
|
||||
byte[] buffer, int bufferOffset, int length)
|
||||
{
|
||||
return GetBytes(_dataReader.GetOrdinal(name), fieldOffset, buffer, bufferOffset, length);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Invokes the GetBytes method of the underlying datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
/// <param name="buffer">Array containing the data.</param>
|
||||
/// <param name="bufferOffset">Offset position within the buffer.</param>
|
||||
/// <param name="fieldOffset">Offset position within the field.</param>
|
||||
/// <param name="length">Length of data to read.</param>
|
||||
public virtual Int64 GetBytes(int i, Int64 fieldOffset,
|
||||
byte[] buffer, int bufferOffset, int length)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return 0;
|
||||
else
|
||||
return _dataReader.GetBytes(i, fieldOffset, buffer, bufferOffset, length);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a char value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns Char.MinValue for null.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public char GetChar(string name)
|
||||
{
|
||||
return GetChar(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a char value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns Char.MinValue for null.
|
||||
/// </remarks>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual char GetChar(int i)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return char.MinValue;
|
||||
else
|
||||
{
|
||||
char[] myChar = new char[1];
|
||||
_dataReader.GetChars(i, 0, myChar, 0, 1);
|
||||
return myChar[0];
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Invokes the GetChars method of the underlying datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
/// <param name="buffer">Array containing the data.</param>
|
||||
/// <param name="bufferOffset">Offset position within the buffer.</param>
|
||||
/// <param name="fieldOffset">Offset position within the field.</param>
|
||||
/// <param name="length">Length of data to read.</param>
|
||||
public Int64 GetChars(string name, Int64 fieldOffset,
|
||||
char[] buffer, int bufferOffset, int length)
|
||||
{
|
||||
return GetChars(_dataReader.GetOrdinal(name), fieldOffset, buffer, bufferOffset, length);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Invokes the GetChars method of the underlying datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
/// <param name="buffer">Array containing the data.</param>
|
||||
/// <param name="bufferOffset">Offset position within the buffer.</param>
|
||||
/// <param name="fieldOffset">Offset position within the field.</param>
|
||||
/// <param name="length">Length of data to read.</param>
|
||||
public virtual Int64 GetChars(int i, Int64 fieldOffset,
|
||||
char[] buffer, int bufferOffset, int length)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return 0;
|
||||
else
|
||||
return _dataReader.GetChars(i, fieldOffset, buffer, bufferOffset, length);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Invokes the GetData method of the underlying datareader.
|
||||
/// </summary>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public IDataReader GetData(string name)
|
||||
{
|
||||
return GetData(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Invokes the GetData method of the underlying datareader.
|
||||
/// </summary>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual IDataReader GetData(int i)
|
||||
{
|
||||
return _dataReader.GetData(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Invokes the GetDataTypeName method of the underlying datareader.
|
||||
/// </summary>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public string GetDataTypeName(string name)
|
||||
{
|
||||
return GetDataTypeName(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Invokes the GetDataTypeName method of the underlying datareader.
|
||||
/// </summary>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual string GetDataTypeName(int i)
|
||||
{
|
||||
return _dataReader.GetDataTypeName(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a date value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns DateTime.MinValue for null.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public virtual DateTime GetDateTime(string name)
|
||||
{
|
||||
return GetDateTime(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a date value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns DateTime.MinValue for null.
|
||||
/// </remarks>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual DateTime GetDateTime(int i)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return DateTime.MinValue;
|
||||
else
|
||||
return _dataReader.GetDateTime(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a decimal value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public decimal GetDecimal(string name)
|
||||
{
|
||||
return GetDecimal(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a decimal value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual decimal GetDecimal(int i)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return 0;
|
||||
else
|
||||
return _dataReader.GetDecimal(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Invokes the GetFieldType method of the underlying datareader.
|
||||
/// </summary>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public Type GetFieldType(string name)
|
||||
{
|
||||
return GetFieldType(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Invokes the GetFieldType method of the underlying datareader.
|
||||
/// </summary>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual Type GetFieldType(int i)
|
||||
{
|
||||
return _dataReader.GetFieldType(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a Single value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public float GetFloat(string name)
|
||||
{
|
||||
return GetFloat(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a Single value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual float GetFloat(int i)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return 0;
|
||||
else
|
||||
return _dataReader.GetFloat(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a Short value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public short GetInt16(string name)
|
||||
{
|
||||
return GetInt16(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a Short value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual short GetInt16(int i)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return 0;
|
||||
else
|
||||
return _dataReader.GetInt16(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a Long value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public Int64 GetInt64(string name)
|
||||
{
|
||||
return GetInt64(_dataReader.GetOrdinal(name));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a Long value from the datareader.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// Returns 0 for null.
|
||||
/// </remarks>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual Int64 GetInt64(int i)
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return 0;
|
||||
else
|
||||
return _dataReader.GetInt64(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Invokes the GetName method of the underlying datareader.
|
||||
/// </summary>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual string GetName(int i)
|
||||
{
|
||||
return _dataReader.GetName(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets an ordinal value from the datareader.
|
||||
/// </summary>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public int GetOrdinal(string name)
|
||||
{
|
||||
return _dataReader.GetOrdinal(name);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Invokes the GetSchemaTable method of the underlying datareader.
|
||||
/// </summary>
|
||||
public DataTable GetSchemaTable()
|
||||
{
|
||||
return _dataReader.GetSchemaTable();
|
||||
}
|
||||
|
||||
|
||||
/// <summary>
|
||||
/// Invokes the GetValues method of the underlying datareader.
|
||||
/// </summary>
|
||||
/// <param name="values">An array of System.Object to
|
||||
/// copy the values into.</param>
|
||||
public int GetValues(object[] values)
|
||||
{
|
||||
return _dataReader.GetValues(values);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Returns the IsClosed property value from the datareader.
|
||||
/// </summary>
|
||||
public bool IsClosed
|
||||
{
|
||||
get
|
||||
{
|
||||
return _dataReader.IsClosed;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Invokes the IsDBNull method of the underlying datareader.
|
||||
/// </summary>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual bool IsDBNull(int i)
|
||||
{
|
||||
return _dataReader.IsDBNull(i);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Returns a value from the datareader.
|
||||
/// </summary>
|
||||
/// <param name="name">Name of the column containing the value.</param>
|
||||
public object this[string name]
|
||||
{
|
||||
get
|
||||
{
|
||||
object val = _dataReader[name];
|
||||
if (DBNull.Value.Equals(val))
|
||||
return null;
|
||||
else
|
||||
return val;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Returns a value from the datareader.
|
||||
/// </summary>
|
||||
/// <param name="i">Ordinal column position of the value.</param>
|
||||
public virtual object this[int i]
|
||||
{
|
||||
get
|
||||
{
|
||||
if (_dataReader.IsDBNull(i))
|
||||
return null;
|
||||
else
|
||||
return _dataReader[i];
|
||||
}
|
||||
}
|
||||
/// <summary>
|
||||
/// Returns the RecordsAffected property value from the underlying datareader.
|
||||
/// </summary>
|
||||
public int RecordsAffected
|
||||
{
|
||||
get
|
||||
{
|
||||
return _dataReader.RecordsAffected;
|
||||
}
|
||||
}
|
||||
|
||||
#region IDisposable Support
|
||||
|
||||
private bool _disposedValue; // To detect redundant calls
|
||||
|
||||
/// <summary>
|
||||
/// Disposes the object.
|
||||
/// </summary>
|
||||
/// <param name="disposing">True if called by
|
||||
/// the public Dispose method.</param>
|
||||
protected virtual void Dispose(bool disposing)
|
||||
{
|
||||
if (!_disposedValue)
|
||||
{
|
||||
if (disposing)
|
||||
{
|
||||
// free unmanaged resources when explicitly called
|
||||
_dataReader.Dispose();
|
||||
}
|
||||
|
||||
// free shared unmanaged resources
|
||||
}
|
||||
_disposedValue = true;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Disposes the object.
|
||||
/// </summary>
|
||||
public void Dispose()
|
||||
{
|
||||
// Do not change this code. Put cleanup code in Dispose(bool disposing) above.
|
||||
Dispose(true);
|
||||
GC.SuppressFinalize(this);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Object finalizer.
|
||||
/// </summary>
|
||||
~SafeDataReader()
|
||||
{
|
||||
Dispose(false);
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user