Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / fx / src / xsp / System / Web / UI / WebControls / RequiredFieldValidator.cs / 1 / RequiredFieldValidator.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.Web.UI.WebControls { using System.ComponentModel; using System.Web; using System.Security.Permissions; using System.Web.Util; ////// [ ToolboxData("<{0}:RequiredFieldValidator runat=\"server\" ErrorMessage=\"RequiredFieldValidator\">{0}:RequiredFieldValidator>") ] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class RequiredFieldValidator : BaseValidator { ///Checks if the value of /// the associated input control is different from its initial value. ////// [ WebCategory("Behavior"), Themeable(false), DefaultValue(""), WebSysDescription(SR.RequiredFieldValidator_InitialValue) ] public string InitialValue { get { object o = ViewState["InitialValue"]; return((o == null) ? String.Empty : (string)o); } set { ViewState["InitialValue"] = value; } } ///Gets or sets the initial value of the associated input control. ////// /// 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", "RequiredFieldValidatorEvaluateIsValid", false); AddExpandoAttribute(expandoAttributeWriter, id, "initialvalue", InitialValue); } } ////// /// EvaluateIsValid method /// protected override bool EvaluateIsValid() { // Get the control value, return true if it is not found string controlValue = GetControlValidationValue(ControlToValidate); if (controlValue == null) { Debug.Fail("Should have been caught by PropertiesValid check"); return true; } // See if the control has changed return(!controlValue.Trim().Equals(InitialValue.Trim())); } } } // 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.Web; using System.Security.Permissions; using System.Web.Util; ////// [ ToolboxData("<{0}:RequiredFieldValidator runat=\"server\" ErrorMessage=\"RequiredFieldValidator\">{0}:RequiredFieldValidator>") ] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class RequiredFieldValidator : BaseValidator { ///Checks if the value of /// the associated input control is different from its initial value. ////// [ WebCategory("Behavior"), Themeable(false), DefaultValue(""), WebSysDescription(SR.RequiredFieldValidator_InitialValue) ] public string InitialValue { get { object o = ViewState["InitialValue"]; return((o == null) ? String.Empty : (string)o); } set { ViewState["InitialValue"] = value; } } ///Gets or sets the initial value of the associated input control. ////// /// 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", "RequiredFieldValidatorEvaluateIsValid", false); AddExpandoAttribute(expandoAttributeWriter, id, "initialvalue", InitialValue); } } ////// /// EvaluateIsValid method /// protected override bool EvaluateIsValid() { // Get the control value, return true if it is not found string controlValue = GetControlValidationValue(ControlToValidate); if (controlValue == null) { Debug.Fail("Should have been caught by PropertiesValid check"); return true; } // See if the control has changed return(!controlValue.Trim().Equals(InitialValue.Trim())); } } } // 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
- TypeReference.cs
- TextInfo.cs
- StringCollection.cs
- BuilderElements.cs
- DataRecord.cs
- SqlBulkCopyColumnMappingCollection.cs
- Lease.cs
- AnnotationObservableCollection.cs
- TextRunCacheImp.cs
- TriState.cs
- CodeSubDirectoriesCollection.cs
- ProfileProvider.cs
- FastEncoderWindow.cs
- BooleanAnimationBase.cs
- SystemSounds.cs
- DropDownButton.cs
- XmlDesignerDataSourceView.cs
- SortDescriptionCollection.cs
- MSG.cs
- DataSpaceManager.cs
- XsdValidatingReader.cs
- FontInfo.cs
- unsafenativemethodsother.cs
- ApplicationInterop.cs
- FixedFindEngine.cs
- SafeRightsManagementHandle.cs
- HostingEnvironmentWrapper.cs
- DependencyObject.cs
- HiddenField.cs
- CryptoConfig.cs
- TagPrefixAttribute.cs
- RoutedUICommand.cs
- HtmlControlPersistable.cs
- SchemaImporterExtensionsSection.cs
- ObjectContextServiceProvider.cs
- WebBrowserEvent.cs
- SelectionPatternIdentifiers.cs
- ImportedNamespaceContextItem.cs
- StrongNamePublicKeyBlob.cs
- DateTimePicker.cs
- CompilationSection.cs
- SmtpNtlmAuthenticationModule.cs
- CacheRequest.cs
- GuidelineSet.cs
- ListViewUpdatedEventArgs.cs
- GradientBrush.cs
- RootBrowserWindowProxy.cs
- EmptyCollection.cs
- GenericsInstances.cs
- Win32KeyboardDevice.cs
- MemoryStream.cs
- SqlClientPermission.cs
- SqlDataRecord.cs
- CounterSet.cs
- ApplicationSecurityManager.cs
- CodeDomDecompiler.cs
- keycontainerpermission.cs
- WebServiceClientProxyGenerator.cs
- WebDisplayNameAttribute.cs
- QilIterator.cs
- TextTreeTextElementNode.cs
- PeerNameRegistration.cs
- SchemaComplexType.cs
- Tokenizer.cs
- TemplateBindingExtensionConverter.cs
- IssuanceLicense.cs
- WindowsPen.cs
- NullRuntimeConfig.cs
- TreeNodeEventArgs.cs
- ArrayTypeMismatchException.cs
- ToolStripItemCollection.cs
- messageonlyhwndwrapper.cs
- InternalConfigEventArgs.cs
- ZipFileInfoCollection.cs
- IpcPort.cs
- DbDataSourceEnumerator.cs
- Table.cs
- AsyncStreamReader.cs
- _AutoWebProxyScriptEngine.cs
- XslException.cs
- XPathParser.cs
- FontFamily.cs
- RawStylusActions.cs
- IListConverters.cs
- KeyValueInternalCollection.cs
- OleCmdHelper.cs
- ScriptingJsonSerializationSection.cs
- TextSimpleMarkerProperties.cs
- XmlUTF8TextWriter.cs
- ResponseStream.cs
- GenericIdentity.cs
- IRCollection.cs
- ByteStreamMessageEncodingElement.cs
- XmlDataLoader.cs
- SrgsRuleRef.cs
- TraceLog.cs
- StaticFileHandler.cs
- HtmlImage.cs
- DesignerActionPropertyItem.cs
- CreateParams.cs