Code:
/ 4.0 / 4.0 / 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. //------------------------------------------------------------------------------ //// 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
- BamlMapTable.cs
- MethodBuilderInstantiation.cs
- PathStreamGeometryContext.cs
- CursorConverter.cs
- JsonByteArrayDataContract.cs
- CultureMapper.cs
- XmlMemberMapping.cs
- ConfigXmlCDataSection.cs
- HtmlControlAdapter.cs
- SqlFunctionAttribute.cs
- SoapAttributes.cs
- SolidBrush.cs
- SqlTopReducer.cs
- TextSchema.cs
- Trace.cs
- ContextQuery.cs
- DataControlReference.cs
- OverrideMode.cs
- ArrangedElementCollection.cs
- RepeatButton.cs
- SmiContextFactory.cs
- PointLight.cs
- WebWorkflowRole.cs
- AssemblyResourceLoader.cs
- TextLineBreak.cs
- _BaseOverlappedAsyncResult.cs
- ContentType.cs
- ControlType.cs
- InstanceDescriptor.cs
- ToolStripContentPanel.cs
- MinimizableAttributeTypeConverter.cs
- _KerberosClient.cs
- IgnorePropertiesAttribute.cs
- GeometryValueSerializer.cs
- PropertyMap.cs
- IdleTimeoutMonitor.cs
- SendOperation.cs
- TextTreeText.cs
- ButtonRenderer.cs
- LogSwitch.cs
- Reference.cs
- WSSecurityPolicy12.cs
- AssemblyEvidenceFactory.cs
- XmlSerializer.cs
- UnsignedPublishLicense.cs
- ContentTypeSettingDispatchMessageFormatter.cs
- XslAstAnalyzer.cs
- DetailsView.cs
- BaseTemplateParser.cs
- ConstructorExpr.cs
- ProcessModule.cs
- StringToken.cs
- InfoCardMasterKey.cs
- QuestionEventArgs.cs
- HierarchicalDataSourceControl.cs
- TextDecorationUnitValidation.cs
- ServiceModelActivationSectionGroup.cs
- DateBoldEvent.cs
- GeometryGroup.cs
- ValueTypeIndexerReference.cs
- metadatamappinghashervisitor.cs
- Helper.cs
- MostlySingletonList.cs
- IndexingContentUnit.cs
- EventProperty.cs
- DataGridViewRowCollection.cs
- PerfService.cs
- LayoutEditorPart.cs
- AsynchronousChannelMergeEnumerator.cs
- Validator.cs
- DataService.cs
- LinkArea.cs
- ClientSideQueueItem.cs
- Int32Rect.cs
- UnhandledExceptionEventArgs.cs
- Byte.cs
- SoapExtensionTypeElement.cs
- ScrollChangedEventArgs.cs
- SystemIcons.cs
- PathFigure.cs
- XamlClipboardData.cs
- COM2PropertyDescriptor.cs
- DefaultValueConverter.cs
- Canvas.cs
- ExecutionEngineException.cs
- DispatchWrapper.cs
- SqlClientFactory.cs
- SendActivityValidator.cs
- AnonymousIdentificationSection.cs
- ProgressBar.cs
- XmlSchemaSimpleTypeList.cs
- UnitControl.cs
- storepermissionattribute.cs
- RowCache.cs
- LockRecoveryTask.cs
- HttpDigestClientElement.cs
- InfocardChannelParameter.cs
- DefinitionUpdate.cs
- DataGridViewComboBoxEditingControl.cs
- WebConfigurationHost.cs