#if FRAMEWORK20
using System;
using System.Collections.Generic;
using System.Text;
using System.ComponentModel;
using System.Reflection;
using System.Globalization;
using System.ComponentModel.Design.Serialization;
using DevComponents.DotNetBar.Validator;
namespace DevComponents.DotNetBar.Design
{
public class RequiredFieldValidatorConverter : ExpandableObjectConverter
{
///
/// Creates new instance of the class.
///
public RequiredFieldValidatorConverter() { }
///
/// Checks whether conversion can be made to specified type.
///
/// Context Information.
/// Destination type.
///
public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType)
{
if (destinationType == typeof(InstanceDescriptor))
return true;
return base.CanConvertTo(context, destinationType);
}
///
/// Converts object to specified type.
///
/// Context information.
/// Culture information.
/// Object to convert.
/// Destination type.
/// Object converted to destination type.
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
if (destinationType == null)
throw new ArgumentNullException("destinationType");
if ((destinationType == typeof(InstanceDescriptor)) && (value is RequiredFieldValidator))
{
RequiredFieldValidator validator = (RequiredFieldValidator)value;
Type[] constructorParams = null;
MemberInfo constructorMemberInfo = null;
object[] constructorValues = null;
if (string.IsNullOrEmpty(validator.OptionalValidationGroup))
{
constructorParams = new Type[] { typeof(string) };
constructorMemberInfo = typeof(RequiredFieldValidator).GetConstructor(constructorParams);
constructorValues = new object[] { validator.ErrorMessage};
}
else
{
constructorParams = new Type[] { typeof(string), typeof(string) };
constructorMemberInfo = typeof(RequiredFieldValidator).GetConstructor(constructorParams);
constructorValues = new object[] { validator.ErrorMessage, validator.OptionalValidationGroup };
}
if (constructorMemberInfo != null)
{
return new InstanceDescriptor(constructorMemberInfo, constructorValues);
}
}
return base.ConvertTo(context, culture, value, destinationType);
}
}
}
#endif