Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / DEVDIV / depot / DevDiv / releases / whidbey / QFE / ndp / fx / src / xsp / System / Web / UI / WebControls / RegularExpressionValidator.cs / 1 / RegularExpressionValidator.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.Web.UI.WebControls { using System.ComponentModel; using System.ComponentModel.Design; using System.Text.RegularExpressions; using System.Drawing.Design; using System.Web; using System.Security.Permissions; using System.Web.Util; ////// [ ToolboxData("<{0}:RegularExpressionValidator runat=\"server\" ErrorMessage=\"RegularExpressionValidator\">{0}:RegularExpressionValidator>") ] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class RegularExpressionValidator : BaseValidator { ///Checks if the value of the associated input control matches the pattern /// of a regular expression. ////// [ WebCategory("Behavior"), Themeable(false), DefaultValue(""), Editor("System.Web.UI.Design.WebControls.RegexTypeEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor)), WebSysDescription(SR.RegularExpressionValidator_ValidationExpression) ] public string ValidationExpression { get { object o = ViewState["ValidationExpression"]; return((o == null) ? String.Empty : (string)o); } set { try { Regex.IsMatch(String.Empty, value); } catch (Exception e) { throw new HttpException( SR.GetString(SR.Validator_bad_regex, value), e); } ViewState["ValidationExpression"] = value; } } ///Indicates the regular expression assigned to be the validation criteria. ////// /// AddAttributesToRender method /// protected override void AddAttributesToRender(HtmlTextWriter writer) { base.AddAttributesToRender(writer); if (RenderUplevel) { string id = ClientID; HtmlTextWriter expandoAttributeWriter = (EnableLegacyRendering) ? writer : null; AddExpandoAttribute(expandoAttributeWriter, id, "evaluationfunction", "RegularExpressionValidatorEvaluateIsValid", false); if (ValidationExpression.Length > 0) { AddExpandoAttribute(expandoAttributeWriter, id, "validationexpression", ValidationExpression); } } } ////// /// EvaluateIsValid method /// protected override bool EvaluateIsValid() { // Always succeeds if input is empty or value was not found string controlValue = GetControlValidationValue(ControlToValidate); Debug.Assert(controlValue != null, "Should have already been checked"); if (controlValue == null || controlValue.Trim().Length == 0) { return true; } try { // we are looking for an exact match, not just a search hit Match m = Regex.Match(controlValue, ValidationExpression); return(m.Success && m.Index == 0 && m.Length == controlValue.Length); } catch { Debug.Fail("Regex error should have been caught in property setter."); return true; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.Web.UI.WebControls { using System.ComponentModel; using System.ComponentModel.Design; using System.Text.RegularExpressions; using System.Drawing.Design; using System.Web; using System.Security.Permissions; using System.Web.Util; ////// [ ToolboxData("<{0}:RegularExpressionValidator runat=\"server\" ErrorMessage=\"RegularExpressionValidator\">{0}:RegularExpressionValidator>") ] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class RegularExpressionValidator : BaseValidator { ///Checks if the value of the associated input control matches the pattern /// of a regular expression. ////// [ WebCategory("Behavior"), Themeable(false), DefaultValue(""), Editor("System.Web.UI.Design.WebControls.RegexTypeEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor)), WebSysDescription(SR.RegularExpressionValidator_ValidationExpression) ] public string ValidationExpression { get { object o = ViewState["ValidationExpression"]; return((o == null) ? String.Empty : (string)o); } set { try { Regex.IsMatch(String.Empty, value); } catch (Exception e) { throw new HttpException( SR.GetString(SR.Validator_bad_regex, value), e); } ViewState["ValidationExpression"] = value; } } ///Indicates the regular expression assigned to be the validation criteria. ////// /// AddAttributesToRender method /// protected override void AddAttributesToRender(HtmlTextWriter writer) { base.AddAttributesToRender(writer); if (RenderUplevel) { string id = ClientID; HtmlTextWriter expandoAttributeWriter = (EnableLegacyRendering) ? writer : null; AddExpandoAttribute(expandoAttributeWriter, id, "evaluationfunction", "RegularExpressionValidatorEvaluateIsValid", false); if (ValidationExpression.Length > 0) { AddExpandoAttribute(expandoAttributeWriter, id, "validationexpression", ValidationExpression); } } } ////// /// EvaluateIsValid method /// protected override bool EvaluateIsValid() { // Always succeeds if input is empty or value was not found string controlValue = GetControlValidationValue(ControlToValidate); Debug.Assert(controlValue != null, "Should have already been checked"); if (controlValue == null || controlValue.Trim().Length == 0) { return true; } try { // we are looking for an exact match, not just a search hit Match m = Regex.Match(controlValue, ValidationExpression); return(m.Success && m.Index == 0 && m.Length == controlValue.Length); } catch { Debug.Fail("Regex error should have been caught in property setter."); return true; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- MimeObjectFactory.cs
- FlowLayoutSettings.cs
- AuthenticateEventArgs.cs
- SQLBinaryStorage.cs
- Path.cs
- CheckBox.cs
- ObjectStateFormatter.cs
- ButtonChrome.cs
- NegotiateStream.cs
- WorkerRequest.cs
- WindowsGrip.cs
- InternalConfigSettingsFactory.cs
- EnumerableCollectionView.cs
- ListSortDescription.cs
- DataGridViewCellCancelEventArgs.cs
- PngBitmapDecoder.cs
- ServicesUtilities.cs
- TcpActivation.cs
- DelayedRegex.cs
- SplashScreenNativeMethods.cs
- AppDomainShutdownMonitor.cs
- MonthCalendar.cs
- LightweightCodeGenerator.cs
- DataGridViewImageColumn.cs
- Int64.cs
- FtpWebRequest.cs
- DesignerCommandSet.cs
- XmlDataProvider.cs
- RemoteDebugger.cs
- autovalidator.cs
- DefaultPrintController.cs
- PenLineCapValidation.cs
- PerformanceCounterCategory.cs
- SnapLine.cs
- EntityRecordInfo.cs
- ListParagraph.cs
- Propagator.cs
- OptimizerPatterns.cs
- LogicalTreeHelper.cs
- NativeCompoundFileAPIs.cs
- DoubleConverter.cs
- DbParameterHelper.cs
- CompositeActivityTypeDescriptor.cs
- EntityDataSourceContextDisposingEventArgs.cs
- Command.cs
- StringBuilder.cs
- PropertyDescriptor.cs
- XsltException.cs
- SignatureDescription.cs
- TextProperties.cs
- SqlRetyper.cs
- XPathDocumentIterator.cs
- XmlQualifiedName.cs
- DocumentsTrace.cs
- UnsafeNativeMethods.cs
- SessionStateContainer.cs
- cookieexception.cs
- UnsafeNativeMethods.cs
- SortDescriptionCollection.cs
- HttpPostedFile.cs
- dbenumerator.cs
- BamlWriter.cs
- SingleQueryOperator.cs
- DbConnectionClosed.cs
- SynthesizerStateChangedEventArgs.cs
- HttpCachePolicyElement.cs
- ProtocolsConfigurationEntry.cs
- TemplateBindingExtensionConverter.cs
- TypedReference.cs
- TreeViewEvent.cs
- ObjectKeyFrameCollection.cs
- FactoryGenerator.cs
- MobileTextWriter.cs
- SponsorHelper.cs
- SupportsEventValidationAttribute.cs
- _ConnectionGroup.cs
- StubHelpers.cs
- PopOutPanel.cs
- BinaryParser.cs
- DataControlField.cs
- _ConnectStream.cs
- DataGridBoolColumn.cs
- TabControl.cs
- ArgIterator.cs
- FixedSchema.cs
- SystemWebSectionGroup.cs
- ExtenderControl.cs
- WinFormsSecurity.cs
- DetailsViewRowCollection.cs
- ClientApiGenerator.cs
- XamlFigureLengthSerializer.cs
- FolderLevelBuildProviderCollection.cs
- SqlCommandSet.cs
- TileBrush.cs
- SpeakInfo.cs
- ExpressionBuilderContext.cs
- CompilerGeneratedAttribute.cs
- UnsignedPublishLicense.cs
- AuthenticationService.cs
- ConfigsHelper.cs