DotNet 4.8.1 build of DotNetBar

PROMS/DotNetBar Source Code/Validator/RangeValidator.cs

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+#if FRAMEWORK20
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.ComponentModel;
+
+namespace DevComponents.DotNetBar.Validator
+{
+    public class RangeValidator : ValidatorBase
+    {
+        #region Constructors
+        /// <summary>
+        /// Initializes a new instance of the RangeValidator class.
+        /// </summary>
+        public RangeValidator()
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the RangeValidator class.
+        /// </summary>
+        public RangeValidator(string errorMessage, object minimumValue, object maximumValue)
+        {
+            this.ErrorMessage = errorMessage;
+            this.MinimumValue = minimumValue;
+            this.MaximumValue = maximumValue;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the RangeValidator class.
+        /// </summary>
+        public RangeValidator(string errorMessage, string optionalValidationGroup, object minimumValue, object maximumValue)
+        {
+            this.ErrorMessage = errorMessage;
+            this.OptionalValidationGroup = optionalValidationGroup;
+            this.MinimumValue = minimumValue;
+            this.MaximumValue = maximumValue;
+        }
+        #endregion
+
+        #region Implementation
+        public override bool Validate(System.Windows.Forms.Control input)
+        {
+            if (_MaximumValue == null && _MinimumValue == null) return true;
+            object value = GetControlValue(input);
+
+            if (value == null)
+            {
+                if (_MinimumValue == null) return true;
+                return false;
+            }
+
+            if(value == "" && _IsEmptyStringValid)
+                return true;
+
+            bool isMinimumValid = true;
+            if (_MinimumValue != null)
+            {
+                isMinimumValid = CompareValidator.Compare(value, _MinimumValue, eValidationCompareOperator.GreaterThanEqual);
+                if (!isMinimumValid) return false;
+            }
+            bool isMaximumValid = true;
+            if (_MaximumValue != null)
+            {
+                isMaximumValid = CompareValidator.Compare(value, _MaximumValue, eValidationCompareOperator.LessThanEqual);
+            }
+
+            this.LastValidationResult = isMinimumValid & isMaximumValid;
+            return this.LastValidationResult;
+        }
+
+        private object _MaximumValue = null;
+        /// <summary>
+        /// Gets or sets the maximum value control may have.
+        /// </summary>
+        [DefaultValue((string)null), Category("Behavior"), Description("Indicates maximum value control may have."), TypeConverter(typeof(StringConverter))]
+        public object MaximumValue
+        {
+            get { return _MaximumValue; }
+            set { _MaximumValue = value; }
+        }
+
+        private object _MinimumValue = null;
+        /// <summary>
+        /// Gets or sets the minimum value control may have.
+        /// </summary>
+        [DefaultValue((string)null), Category("Behavior"), Description("Indicates minimum value control may have."), TypeConverter(typeof(StringConverter))]
+        public object MinimumValue
+        {
+            get { return _MinimumValue; }
+            set { _MinimumValue = value; }
+        }
+
+        private bool _IsEmptyStringValid = false;
+        /// <summary>
+        /// Indicates whether empty string of zero length is considered valid input.
+        /// </summary>
+        [DefaultValue(false), Category("Behavior"), Description("Indicates whether empty string of zero length is considered valid input.")]
+        public bool IsEmptyStringValid
+        {
+            get { return _IsEmptyStringValid; }
+            set
+            {
+                _IsEmptyStringValid = value;
+            }
+        }
+        #endregion
+    }
+}
+#endif