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/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Framework / System / Windows / Controls / ValidationResult.cs / 1 / ValidationResult.cs
//---------------------------------------------------------------------------- // //// Copyright (C) 2003 by Microsoft Corporation. All rights reserved. // // // // Description: // A ValidationResult is the result of call to ValidationRule.Validate // // See specs at [....]/connecteddata/M5%20Specs/Validation.mht // // History: // 5/3/2004 [....]: created. // //--------------------------------------------------------------------------- using System; namespace System.Windows.Controls { ////// A ValidationResult is the result of call to ValidationRule.Validate /// public class ValidationResult { ////// Constructor /// public ValidationResult(bool isValid, object errorContent) { _isValid = isValid; _errorContent = errorContent; } ////// Whether or not the ValidationRule that was checked is valid. /// public bool IsValid { get { return _isValid; } } ////// Additional information regarding the cause of the invalid /// state of the binding that was just checked. /// public object ErrorContent { get { return _errorContent; } } ////// Returns a valid ValidationResult /// public static ValidationResult ValidResult { get { return s_valid; } } ////// Compares the parameters for value equality /// /// left operand /// right operand ///true if the values are equal public static bool operator == (ValidationResult left, ValidationResult right) { return Object.Equals(left, right); } ////// Compares the parameters for value inequality /// /// left operand /// right operand ///true if the values are not equal public static bool operator != (ValidationResult left, ValidationResult right) { return !Object.Equals(left, right); } ////// By-value comparison of ValidationResult /// ////// This method is also used indirectly from the operator overrides. /// /// ValidationResult to be compared against this ValidationRule ///true if obj is ValidationResult and has the same values public override bool Equals(object obj) { // A cheaper alternative to Object.ReferenceEquals() is used here for better perf if (obj == (object)this) { return true; } else { ValidationResult vr = obj as ValidationResult; if (vr != null) { return (IsValid == vr.IsValid) && (ErrorContent == vr.ErrorContent); } } return false; } ////// Hash function for ValidationResult /// ///hash code for the current ValidationResult public override int GetHashCode() { return IsValid.GetHashCode() ^ ((ErrorContent == null) ? int.MinValue : ErrorContent).GetHashCode(); } private bool _isValid; private object _errorContent; private static readonly ValidationResult s_valid = new ValidationResult(true, null); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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