Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / xsp / System / Web / UI / HtmlControls / HtmlInputRadioButton.cs / 1 / HtmlInputRadioButton.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * HtmlInputRadioButton.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, ] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class HtmlInputRadioButton : HtmlInputControl, IPostBackDataHandler { private static readonly object EventServerChange = new object(); /* * Creates an intrinsic Html INPUT type=radio control. */ public HtmlInputRadioButton() : base("radio") { } /* * Checked property. */ ////// The ///class defines the methods, /// properties, and events for the HtmlInputRadio control. This class allows /// programmatic access to the HTML <input type= /// radio> /// element on the server. /// /// [ WebCategory("Default"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public bool Checked { get { string s = Attributes["checked"]; return((s != null) ? (s.Equals("checked")) : false); } set { if (value) Attributes["checked"] = "checked"; else Attributes["checked"] = null; } } ////// Gets or sets a value indicating whether a radio button is /// currently selected or not. /// ////// public override string Name { get { string s = Attributes["name"]; return ((s != null) ? s : String.Empty); } set { Attributes["name"] = MapStringAttributeToString(value); } } ////// Gets the value of the HTML /// Name attribute that will be rendered to the browser. /// ////// public override string Value { get { string val = base.Value; if (val.Length != 0) return val; val = ID; if (val != null) return val; // if specific value is not provided, use the UniqueID return UniqueID; } set { base.Value = value; } } // Value that gets rendered for the Name attribute internal override string RenderedNameAttribute { get { // For radio buttons, we must make the name unique, but can't just use the // UniqueID because all buttons in a group must have the same name. So // we replace the last part of the UniqueID with the group Name. string name = base.RenderedNameAttribute; string uid = UniqueID; int lastColon = uid.LastIndexOf(IdSeparator); if (lastColon >= 0) name = uid.Substring(0, lastColon+1) + name; return name; } } [ WebCategory("Action"), WebSysDescription(SR.Control_OnServerCheckChanged) ] public event EventHandler ServerChange { add { Events.AddHandler(EventServerChange, value); } remove { Events.RemoveHandler(EventServerChange, value); } } /* * This method is invoked just prior to rendering. */ ////// Gets or sets the contents of a text box. /// ////// /// protected internal override void OnPreRender(EventArgs e) { base.OnPreRender(e); if (Page != null && !Disabled) { Page.RegisterRequiresPostBack(this); Page.RegisterEnabledControl(this); } // if no change handler, no need to save posted property if (Events[EventServerChange] == null && !Disabled) { ViewState.SetItemDirty("checked",false); } } /* * Method used to raise the OnServerChange event. */ ////// protected virtual void OnServerChange(EventArgs e) { EventHandler handler = (EventHandler)Events[EventServerChange]; if (handler != null) handler(this, e); } ////// /// protected override void RenderAttributes(HtmlTextWriter writer) { if (Page != null) { Page.ClientScript.RegisterForEventValidation(Value, RenderedNameAttribute); } writer.WriteAttribute("value", Value); Attributes.Remove("value"); base.RenderAttributes(writer); } /* * Method of IPostBackDataHandler interface to process posted data. * RadioButton determines the posted radio group state. */ ////// /// bool IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection) { return LoadPostData(postDataKey, postCollection); } ////// /// protected virtual bool LoadPostData(string postDataKey, NameValueCollection postCollection) { string postValue = postCollection[RenderedNameAttribute]; bool valueChanged = false; if ((postValue != null) && postValue.Equals(Value)) { if (Checked == false) { ValidateEvent(Value, RenderedNameAttribute); Checked = true; // only fire change event for RadioButton that is being checked valueChanged = true; } } else { if (Checked == true) { Checked = false; } } return valueChanged; } /* * Method of IPostBackDataHandler interface which is invoked whenever posted data * for a control has changed. RadioButton fires an OnServerChange 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. // //----------------------------------------------------------------------------- /* * HtmlInputRadioButton.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, ] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class HtmlInputRadioButton : HtmlInputControl, IPostBackDataHandler { private static readonly object EventServerChange = new object(); /* * Creates an intrinsic Html INPUT type=radio control. */ public HtmlInputRadioButton() : base("radio") { } /* * Checked property. */ ////// The ///class defines the methods, /// properties, and events for the HtmlInputRadio control. This class allows /// programmatic access to the HTML <input type= /// radio> /// element on the server. /// /// [ WebCategory("Default"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public bool Checked { get { string s = Attributes["checked"]; return((s != null) ? (s.Equals("checked")) : false); } set { if (value) Attributes["checked"] = "checked"; else Attributes["checked"] = null; } } ////// Gets or sets a value indicating whether a radio button is /// currently selected or not. /// ////// public override string Name { get { string s = Attributes["name"]; return ((s != null) ? s : String.Empty); } set { Attributes["name"] = MapStringAttributeToString(value); } } ////// Gets the value of the HTML /// Name attribute that will be rendered to the browser. /// ////// public override string Value { get { string val = base.Value; if (val.Length != 0) return val; val = ID; if (val != null) return val; // if specific value is not provided, use the UniqueID return UniqueID; } set { base.Value = value; } } // Value that gets rendered for the Name attribute internal override string RenderedNameAttribute { get { // For radio buttons, we must make the name unique, but can't just use the // UniqueID because all buttons in a group must have the same name. So // we replace the last part of the UniqueID with the group Name. string name = base.RenderedNameAttribute; string uid = UniqueID; int lastColon = uid.LastIndexOf(IdSeparator); if (lastColon >= 0) name = uid.Substring(0, lastColon+1) + name; return name; } } [ WebCategory("Action"), WebSysDescription(SR.Control_OnServerCheckChanged) ] public event EventHandler ServerChange { add { Events.AddHandler(EventServerChange, value); } remove { Events.RemoveHandler(EventServerChange, value); } } /* * This method is invoked just prior to rendering. */ ////// Gets or sets the contents of a text box. /// ////// /// protected internal override void OnPreRender(EventArgs e) { base.OnPreRender(e); if (Page != null && !Disabled) { Page.RegisterRequiresPostBack(this); Page.RegisterEnabledControl(this); } // if no change handler, no need to save posted property if (Events[EventServerChange] == null && !Disabled) { ViewState.SetItemDirty("checked",false); } } /* * Method used to raise the OnServerChange event. */ ////// protected virtual void OnServerChange(EventArgs e) { EventHandler handler = (EventHandler)Events[EventServerChange]; if (handler != null) handler(this, e); } ////// /// protected override void RenderAttributes(HtmlTextWriter writer) { if (Page != null) { Page.ClientScript.RegisterForEventValidation(Value, RenderedNameAttribute); } writer.WriteAttribute("value", Value); Attributes.Remove("value"); base.RenderAttributes(writer); } /* * Method of IPostBackDataHandler interface to process posted data. * RadioButton determines the posted radio group state. */ ////// /// bool IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection) { return LoadPostData(postDataKey, postCollection); } ////// /// protected virtual bool LoadPostData(string postDataKey, NameValueCollection postCollection) { string postValue = postCollection[RenderedNameAttribute]; bool valueChanged = false; if ((postValue != null) && postValue.Equals(Value)) { if (Checked == false) { ValidateEvent(Value, RenderedNameAttribute); Checked = true; // only fire change event for RadioButton that is being checked valueChanged = true; } } else { if (Checked == true) { Checked = false; } } return valueChanged; } /* * Method of IPostBackDataHandler interface which is invoked whenever posted data * for a control has changed. RadioButton fires an OnServerChange 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
- MediaTimeline.cs
- TextServicesCompartmentEventSink.cs
- Inline.cs
- SimpleMailWebEventProvider.cs
- TextCollapsingProperties.cs
- SmtpCommands.cs
- CheckBoxAutomationPeer.cs
- DataGridRowHeader.cs
- BaseParser.cs
- ScrollBar.cs
- MetadataFile.cs
- WmpBitmapDecoder.cs
- __ConsoleStream.cs
- IChannel.cs
- NCryptNative.cs
- PrintDocument.cs
- BitmapSizeOptions.cs
- StrokeIntersection.cs
- IisTraceWebEventProvider.cs
- DataBinder.cs
- RunWorkerCompletedEventArgs.cs
- Version.cs
- URI.cs
- StatusBarPanelClickEvent.cs
- ExpressionBuilderCollection.cs
- ImageKeyConverter.cs
- DefaultHttpHandler.cs
- ViewLoader.cs
- SeekableReadStream.cs
- EventLevel.cs
- AddInStore.cs
- ReadOnlyMetadataCollection.cs
- ReflectionUtil.cs
- SafeHandle.cs
- CatalogZone.cs
- WebEventCodes.cs
- DataSourceXmlAttributeAttribute.cs
- TemplateContent.cs
- ArithmeticException.cs
- CryptoProvider.cs
- AttachedPropertyInfo.cs
- TextControlDesigner.cs
- ActivityExecutor.cs
- SqlWorkflowPersistenceService.cs
- SignerInfo.cs
- PasswordRecovery.cs
- Renderer.cs
- LinqTreeNodeEvaluator.cs
- CustomCredentialPolicy.cs
- ClientCultureInfo.cs
- ParserExtension.cs
- MultiAsyncResult.cs
- WorkItem.cs
- ClickablePoint.cs
- AppendHelper.cs
- ComplexBindingPropertiesAttribute.cs
- NavigationProperty.cs
- _SingleItemRequestCache.cs
- CachingParameterInspector.cs
- WorkflowQueue.cs
- ReachPrintTicketSerializer.cs
- ResourcesChangeInfo.cs
- WebBrowserProgressChangedEventHandler.cs
- ObjectConverter.cs
- MeshGeometry3D.cs
- IDQuery.cs
- DataFormats.cs
- UITypeEditor.cs
- CompilationRelaxations.cs
- UnsafeNativeMethods.cs
- DesignerListAdapter.cs
- SchemaImporterExtension.cs
- WebBrowsableAttribute.cs
- LineServicesRun.cs
- TabControl.cs
- AuthenticationModulesSection.cs
- MediaPlayer.cs
- LineBreakRecord.cs
- DataGridViewLayoutData.cs
- WindowsSolidBrush.cs
- FontCollection.cs
- ContainsRowNumberChecker.cs
- Msec.cs
- HttpCookieCollection.cs
- RelationshipFixer.cs
- DataRowCollection.cs
- TextBoxAutoCompleteSourceConverter.cs
- Polyline.cs
- FormViewCommandEventArgs.cs
- WindowsTab.cs
- NullableBoolConverter.cs
- PathFigure.cs
- TranslateTransform.cs
- ToolStripDropDownDesigner.cs
- Scene3D.cs
- RenderOptions.cs
- TableProviderWrapper.cs
- SqlPersonalizationProvider.cs
- AudioDeviceOut.cs
- RunWorkerCompletedEventArgs.cs