Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / 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.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- DataGridRowAutomationPeer.cs
- AtomMaterializerLog.cs
- TerminateDesigner.cs
- PermissionToken.cs
- UpdatePanelControlTrigger.cs
- Switch.cs
- BitmapEffectCollection.cs
- LinkedList.cs
- SimpleRecyclingCache.cs
- UpdatePanelControlTrigger.cs
- AttributeCollection.cs
- StringAttributeCollection.cs
- RequestQueryParser.cs
- AlternateViewCollection.cs
- DateTimeValueSerializer.cs
- FileLogRecordStream.cs
- MessageQueueConverter.cs
- lengthconverter.cs
- PointValueSerializer.cs
- NamespaceExpr.cs
- MessageContractAttribute.cs
- GroupItemAutomationPeer.cs
- SelectionItemProviderWrapper.cs
- SchemaMerger.cs
- InputDevice.cs
- ToolStripContentPanel.cs
- DrawingContextWalker.cs
- SQLDecimalStorage.cs
- ComponentResourceKey.cs
- WebBrowserBase.cs
- QueryLifecycle.cs
- ResXDataNode.cs
- FileDialog_Vista.cs
- Parser.cs
- EntityDataSourceContextCreatedEventArgs.cs
- ToolStripDropDownMenu.cs
- OptimizedTemplateContent.cs
- HttpCachePolicy.cs
- DynamicDocumentPaginator.cs
- DurableInstanceContextProvider.cs
- ExplicitDiscriminatorMap.cs
- CompilationLock.cs
- DbDeleteCommandTree.cs
- PerfService.cs
- SqlStatistics.cs
- SoapCommonClasses.cs
- NameHandler.cs
- ObjectReaderCompiler.cs
- HtmlContainerControl.cs
- _SpnDictionary.cs
- Int32Collection.cs
- RectangleF.cs
- XPathScanner.cs
- MruCache.cs
- ObjRef.cs
- ValueType.cs
- NonVisualControlAttribute.cs
- MimePart.cs
- SspiSafeHandles.cs
- GetPageNumberCompletedEventArgs.cs
- CharAnimationUsingKeyFrames.cs
- CodeTypeDeclaration.cs
- SQLString.cs
- ItemsControl.cs
- ControlBindingsCollection.cs
- TransactionFlowElement.cs
- HtmlListAdapter.cs
- InstanceLockQueryResult.cs
- BrushValueSerializer.cs
- StringReader.cs
- ObjectCacheHost.cs
- LocalFileSettingsProvider.cs
- WebChannelFactory.cs
- DynamicExpression.cs
- MenuItem.cs
- HelloMessage11.cs
- CodeMethodReturnStatement.cs
- ControlBuilder.cs
- WindowsAltTab.cs
- OleDbConnectionPoolGroupProviderInfo.cs
- ChineseLunisolarCalendar.cs
- ConfigXmlDocument.cs
- OdbcConnection.cs
- DescendentsWalkerBase.cs
- PerfProviderCollection.cs
- GridPattern.cs
- MatrixCamera.cs
- ElementHostPropertyMap.cs
- XamlVector3DCollectionSerializer.cs
- MultiSelector.cs
- SizeKeyFrameCollection.cs
- pingexception.cs
- SimpleParser.cs
- IsolationInterop.cs
- InfoCardServiceInstallComponent.cs
- ListViewItemSelectionChangedEvent.cs
- DataGridViewImageColumn.cs
- NullableLongMinMaxAggregationOperator.cs
- Baml6ConstructorInfo.cs
- SoapInteropTypes.cs