Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / 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. // //----------------------------------------------------------------------------- /* */ 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.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- LinqTreeNodeEvaluator.cs
- UdpConstants.cs
- HtmlForm.cs
- CommunicationObjectManager.cs
- DataKey.cs
- HttpConfigurationSystem.cs
- PageStatePersister.cs
- NameValueSectionHandler.cs
- ClockController.cs
- Marshal.cs
- WithStatement.cs
- XPathScanner.cs
- UnmanagedBitmapWrapper.cs
- DataSourceHelper.cs
- SessionIDManager.cs
- ApplicationCommands.cs
- FontFamily.cs
- ButtonField.cs
- MatrixTransform.cs
- Registry.cs
- SecurityElement.cs
- MenuScrollingVisibilityConverter.cs
- ReliableChannelFactory.cs
- OracleTimeSpan.cs
- ContentFileHelper.cs
- EntityParameterCollection.cs
- XmlSchemaChoice.cs
- HtmlWindow.cs
- DataGridViewCellCollection.cs
- ValidatorCollection.cs
- DisplayMemberTemplateSelector.cs
- CodeEntryPointMethod.cs
- SqlPersonalizationProvider.cs
- FormsAuthentication.cs
- PerfCounterSection.cs
- X509CertificateTokenFactoryCredential.cs
- XslAst.cs
- LogoValidationException.cs
- CounterCreationDataCollection.cs
- Menu.cs
- Point3D.cs
- DurableOperationAttribute.cs
- EditingCoordinator.cs
- NativeMethodsCLR.cs
- ClientScriptItem.cs
- RepeatInfo.cs
- CacheOutputQuery.cs
- Config.cs
- ResXResourceSet.cs
- GetWinFXPath.cs
- DelegatedStream.cs
- SchemaManager.cs
- HttpEncoderUtility.cs
- ObjectDataSourceView.cs
- InvalidDataException.cs
- SmtpLoginAuthenticationModule.cs
- TemplateBindingExpressionConverter.cs
- ProxyDataContractResolver.cs
- _NestedSingleAsyncResult.cs
- OutputCacheSettings.cs
- Matrix3DStack.cs
- AdornerDecorator.cs
- Empty.cs
- MinMaxParagraphWidth.cs
- StrokeCollectionDefaultValueFactory.cs
- ListViewCancelEventArgs.cs
- XPathPatternBuilder.cs
- Transform3DCollection.cs
- Site.cs
- XmlAttributes.cs
- DocumentViewerAutomationPeer.cs
- StrokeCollection.cs
- CreateUserWizardStep.cs
- DashStyle.cs
- WebBodyFormatMessageProperty.cs
- Floater.cs
- SessionSwitchEventArgs.cs
- DataBinder.cs
- QueueProcessor.cs
- GacUtil.cs
- WebEventTraceProvider.cs
- ProgressBarAutomationPeer.cs
- XpsSerializerFactory.cs
- PropertyGridView.cs
- XmlBuffer.cs
- KeyToListMap.cs
- DesignTimeDataBinding.cs
- OpenFileDialog.cs
- AdditionalEntityFunctions.cs
- Serializer.cs
- XPathAxisIterator.cs
- ConfigurationCollectionAttribute.cs
- StreamWithDictionary.cs
- DataGridViewImageColumn.cs
- RelatedCurrencyManager.cs
- WmlMobileTextWriter.cs
- VisualTreeHelper.cs
- RichTextBoxConstants.cs
- GeometryCombineModeValidation.cs
- QuerySettings.cs