Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / HtmlControls / HtmlInputHidden.cs / 1305376 / HtmlInputHidden.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * HtmlInputHidden.cs * * Copyright (c) 2000 Microsoft Corporation */ namespace System.Web.UI.HtmlControls { using System.ComponentModel; using System; using System.Collections; using System.Collections.Specialized; using System.Web; using System.Web.UI; using System.Security.Permissions; ////// [ DefaultEvent("ServerChange"), SupportsEventValidation, ] public class HtmlInputHidden : HtmlInputControl, IPostBackDataHandler { private static readonly object EventServerChange = new object(); /* * Creates an intrinsic Html INPUT type=hidden control. */ public HtmlInputHidden() : base("hidden") { } ////// The ///class defines the methods, properties, /// and events of the HtmlInputHidden control. This class allows programmatic access /// to the HTML <input type=hidden> element on the server. /// /// [ WebCategory("Action"), WebSysDescription(SR.HtmlInputHidden_OnServerChange) ] public event EventHandler ServerChange { add { Events.AddHandler(EventServerChange, value); } remove { Events.RemoveHandler(EventServerChange, value); } } /* * Method used to raise the OnServerChange event. */ ////// Occurs when the ///control /// is changed on the server. /// /// protected virtual void OnServerChange(EventArgs e) { EventHandler handler = (EventHandler)Events[EventServerChange]; if (handler != null) handler(this, e); } /* * */ ////// Raised on the server when the ///control /// changes between postback requests. /// /// /// protected internal override void OnPreRender(EventArgs e) { base.OnPreRender(e); // if no change handler, no need to save posted property if (!Disabled) { if (Events[EventServerChange] == null) { ViewState.SetItemDirty("value",false); } if (Page != null) { Page.RegisterEnabledControl(this); } } } /* * Method of IPostBackDataHandler interface to process posted data. * InputText process a newly posted value. */ ////// /// bool IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection) { return LoadPostData(postDataKey, postCollection); } protected virtual bool LoadPostData(string postDataKey, NameValueCollection postCollection) { string current = Value; string text = postCollection.GetValues(postDataKey)[0]; if (!current.Equals(text)) { ValidateEvent(postDataKey); Value = text; return true; } return false; } protected override void RenderAttributes(HtmlTextWriter writer) { base.RenderAttributes(writer); if (Page != null) { Page.ClientScript.RegisterForEventValidation(RenderedNameAttribute); } } /* * Method of IPostBackDataHandler interface which is invoked whenever posted data * for a control has changed. TextBox fires an OnTextChanged event. */ ////// /// void IPostBackDataHandler.RaisePostDataChangedEvent() { RaisePostDataChangedEvent(); } ////// /// protected virtual void RaisePostDataChangedEvent() { OnServerChange(EventArgs.Empty); } } } // 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
- HtmlTableRow.cs
- WebReferencesBuildProvider.cs
- WsdlInspector.cs
- ClockController.cs
- GlyphRunDrawing.cs
- ContentTextAutomationPeer.cs
- ObjectDisposedException.cs
- CssClassPropertyAttribute.cs
- DiscoveryClientProtocol.cs
- EmptyTextWriter.cs
- HtmlShim.cs
- SafeSystemMetrics.cs
- DataContext.cs
- TogglePattern.cs
- DBDataPermission.cs
- LookupNode.cs
- EdmConstants.cs
- SoapEnumAttribute.cs
- XmlWrappingReader.cs
- ADConnectionHelper.cs
- DataConnectionHelper.cs
- DefaultEventAttribute.cs
- XpsImage.cs
- SafeRightsManagementQueryHandle.cs
- PagePropertiesChangingEventArgs.cs
- LayoutTable.cs
- ProbeMatchesApril2005.cs
- CryptographicAttribute.cs
- MessageBox.cs
- ScriptModule.cs
- ContextMenuAutomationPeer.cs
- TagPrefixInfo.cs
- XmlSchemaComplexContentRestriction.cs
- SafeUserTokenHandle.cs
- StubHelpers.cs
- XamlFrame.cs
- PeerServiceMessageContracts.cs
- Win32Exception.cs
- ThaiBuddhistCalendar.cs
- FixedSOMImage.cs
- ConstructorNeedsTagAttribute.cs
- GeneratedContractType.cs
- ErrorHandler.cs
- ProcessStartInfo.cs
- MimeMultiPart.cs
- PathSegment.cs
- ComplexPropertyEntry.cs
- printdlgexmarshaler.cs
- PixelShader.cs
- DataFormat.cs
- ImageClickEventArgs.cs
- AuthenticationModuleElement.cs
- KernelTypeValidation.cs
- UrlMappingsSection.cs
- RefreshEventArgs.cs
- PageParser.cs
- ShellProvider.cs
- PolygonHotSpot.cs
- WindowsRichEdit.cs
- SubtreeProcessor.cs
- WebPartDisplayModeEventArgs.cs
- XmlNullResolver.cs
- ExplicitDiscriminatorMap.cs
- PerformanceCounterLib.cs
- GacUtil.cs
- TagNameToTypeMapper.cs
- ScrollViewerAutomationPeer.cs
- TypedReference.cs
- WCFBuildProvider.cs
- ArraySet.cs
- RemotingSurrogateSelector.cs
- TransportConfigurationTypeElement.cs
- PieceNameHelper.cs
- Rule.cs
- ParserOptions.cs
- TimeSpanMinutesOrInfiniteConverter.cs
- AutoScrollHelper.cs
- CodeDOMProvider.cs
- DataGridToolTip.cs
- CollectionDataContract.cs
- DesignerCapabilities.cs
- SynchronizedCollection.cs
- connectionpool.cs
- MessageSmuggler.cs
- assertwrapper.cs
- FontStretches.cs
- NumberEdit.cs
- NonBatchDirectoryCompiler.cs
- IPipelineRuntime.cs
- SettingsPropertyIsReadOnlyException.cs
- BasicHttpMessageSecurityElement.cs
- MexHttpBindingElement.cs
- DispatchChannelSink.cs
- ImageSourceConverter.cs
- BindUriHelper.cs
- SystemMulticastIPAddressInformation.cs
- BrowsableAttribute.cs
- MissingMemberException.cs
- Nullable.cs
- DefaultPropertyAttribute.cs