Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / 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
- TemplateEditingFrame.cs
- EdmFunctions.cs
- ToolStripLocationCancelEventArgs.cs
- CqlQuery.cs
- SpnegoTokenAuthenticator.cs
- SecurityRuntime.cs
- TextRange.cs
- WindowsFormsLinkLabel.cs
- MessageDecoder.cs
- QueryExpr.cs
- SymDocumentType.cs
- ImageInfo.cs
- ExecutedRoutedEventArgs.cs
- HttpVersion.cs
- WebPartMovingEventArgs.cs
- QualifiedCellIdBoolean.cs
- TabPage.cs
- DeviceContext.cs
- DefaultTextStore.cs
- Permission.cs
- MenuCommandsChangedEventArgs.cs
- WebColorConverter.cs
- ToolTipService.cs
- SQLBytes.cs
- ExceptionUtility.cs
- WebDescriptionAttribute.cs
- PeerApplicationLaunchInfo.cs
- SecurityBindingElement.cs
- LayoutInformation.cs
- ScrollItemProviderWrapper.cs
- SettingsPropertyNotFoundException.cs
- EntitySqlQueryState.cs
- QuadTree.cs
- xamlnodes.cs
- XmlSchemaElement.cs
- IISMapPath.cs
- EnvelopeVersion.cs
- TableStyle.cs
- PopupRoot.cs
- returneventsaver.cs
- TemplatedMailWebEventProvider.cs
- Int32EqualityComparer.cs
- XXXInfos.cs
- ToolTipAutomationPeer.cs
- HostedImpersonationContext.cs
- DataGridViewEditingControlShowingEventArgs.cs
- InfoCardBaseException.cs
- ComboBox.cs
- SiteOfOriginContainer.cs
- UpWmlPageAdapter.cs
- DataControlPagerLinkButton.cs
- ClientTargetCollection.cs
- StrokeNodeOperations.cs
- ReferentialConstraintRoleElement.cs
- HotSpotCollection.cs
- NullRuntimeConfig.cs
- DataGridViewSelectedRowCollection.cs
- UserControl.cs
- BStrWrapper.cs
- LinearGradientBrush.cs
- PublishLicense.cs
- InternalDispatchObject.cs
- DataServiceKeyAttribute.cs
- SoapAttributeAttribute.cs
- DBDataPermissionAttribute.cs
- FlowPanelDesigner.cs
- documentsequencetextpointer.cs
- Coordinator.cs
- WriterOutput.cs
- HttpsChannelFactory.cs
- QilValidationVisitor.cs
- DataSourceView.cs
- DispatcherOperation.cs
- DrawingAttributes.cs
- UrlMappingCollection.cs
- ExitEventArgs.cs
- InteropDesigner.xaml.cs
- TabPage.cs
- XpsFilter.cs
- PathFigureCollectionConverter.cs
- Interop.cs
- CaseInsensitiveComparer.cs
- Highlights.cs
- SiteMapSection.cs
- coordinatorscratchpad.cs
- MemberInfoSerializationHolder.cs
- Authorization.cs
- PrivateFontCollection.cs
- WizardSideBarListControlItemEventArgs.cs
- MenuCommand.cs
- Hyperlink.cs
- ObjectConverter.cs
- DataException.cs
- IndexedString.cs
- InstanceDataCollectionCollection.cs
- DataSpaceManager.cs
- DetailsViewCommandEventArgs.cs
- HtmlFormAdapter.cs
- SqlDataSourceFilteringEventArgs.cs
- XmlSignificantWhitespace.cs