Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / HtmlControls / HtmlAnchor.cs / 1305376 / HtmlAnchor.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * HtmlAnchor.cs * * Copyright (c) 2000 Microsoft Corporation */ namespace System.Web.UI.HtmlControls { using System.ComponentModel; using System; using System.Collections; using System.Web; using System.Web.UI; using System.Web.Util; using System.Security.Permissions; ////// [ DefaultEvent("ServerClick"), SupportsEventValidation, ] public class HtmlAnchor : HtmlContainerControl, IPostBackEventHandler { private static readonly object EventServerClick = new object(); /* * Creates an intrinsic Html A control. */ ///The ////// class defines the methods, properties, and /// events for the HtmlAnchor control. /// This /// class /// allows programmatic access to the /// HTML <a> element on the server. /// public HtmlAnchor() : base("a") { } [ WebCategory("Behavior"), DefaultValue(true), ] public virtual bool CausesValidation { get { object b = ViewState["CausesValidation"]; return((b == null) ? true : (bool)b); } set { ViewState["CausesValidation"] = value; } } /* * Href property. */ ///Initializes a new instance of the ///class. /// [ WebCategory("Navigation"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), UrlProperty() ] public string HRef { get { string s = Attributes["href"]; return((s != null) ? s : String.Empty); } set { Attributes["href"] = MapStringAttributeToString(value); } } /* * Name of group this radio is in. */ ///Gets or sets the URL target of the link specified in the /// ////// server control. /// [ WebCategory("Navigation"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public string Name { get { string s = Attributes["name"]; return((s != null) ? s : String.Empty); } set { Attributes["name"] = MapStringAttributeToString(value); } } /* * Target window property. */ ///Gets or sets the bookmark name defined in the ////// server /// control. /// [ WebCategory("Navigation"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public string Target { get { string s = Attributes["target"]; return((s != null) ? s : String.Empty); } set { Attributes["target"] = MapStringAttributeToString(value); } } /* * Title property. */ ////// Gets or /// sets the target window or frame /// to load linked Web page content into. /// ////// [ WebCategory("Appearance"), Localizable(true), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public string Title { get { string s = Attributes["title"]; return((s != null) ? s : String.Empty); } set { Attributes["title"] = MapStringAttributeToString(value); } } [ WebCategory("Behavior"), DefaultValue(""), WebSysDescription(SR.PostBackControl_ValidationGroup) ] public virtual string ValidationGroup { get { string s = (string)ViewState["ValidationGroup"]; return((s == null) ? string.Empty : s); } set { ViewState["ValidationGroup"] = value; } } ///Gets or sets the title that /// the browser displays when identifying linked content. ////// [ WebCategory("Action"), WebSysDescription(SR.HtmlControl_OnServerClick) ] public event EventHandler ServerClick { add { Events.AddHandler(EventServerClick, value); } remove { Events.RemoveHandler(EventServerClick, value); } } private PostBackOptions GetPostBackOptions() { PostBackOptions options = new PostBackOptions(this, string.Empty); options.RequiresJavaScriptProtocol = true; if (CausesValidation && Page.GetValidators(ValidationGroup).Count > 0) { options.PerformValidation = true; options.ValidationGroup = ValidationGroup; } return options; } ///Occurs on the server when a user clicks the ///control on the /// browser. protected internal override void OnPreRender(EventArgs e) { base.OnPreRender(e); if (Page != null && Events[EventServerClick] != null) { Page.RegisterPostBackScript(); // VSWhidbey 489577 if (CausesValidation && Page.GetValidators(ValidationGroup).Count > 0) { Page.RegisterWebFormsScript(); } } } /* * Override to generate postback code for onclick. */ /// /// /// protected override void RenderAttributes(HtmlTextWriter writer) { if (Events[EventServerClick] != null) { Attributes.Remove("href"); base.RenderAttributes(writer); PostBackOptions options = GetPostBackOptions(); Debug.Assert(options != null); string postBackEventReference = Page.ClientScript.GetPostBackEventReference(options, true); Debug.Assert(!string.IsNullOrEmpty(postBackEventReference)); writer.WriteAttribute("href", postBackEventReference, true); } else { PreProcessRelativeReferenceAttribute(writer, "href"); base.RenderAttributes(writer); } } /* * Method used to raise the OnServerClick event. */ ////// protected virtual void OnServerClick(EventArgs e) { EventHandler handler = (EventHandler)Events[EventServerClick]; if (handler != null) handler(this, e); } /* * Method of IPostBackEventHandler interface to raise events on post back. * Button fires an OnServerClick event. */ ///Raises the ////// event. /// /// void IPostBackEventHandler.RaisePostBackEvent(string eventArgument) { RaisePostBackEvent(eventArgument); } ////// /// protected virtual void RaisePostBackEvent(string eventArgument) { ValidateEvent(UniqueID, eventArgument); if (CausesValidation) { Page.Validate(ValidationGroup); } OnServerClick(EventArgs.Empty); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * HtmlAnchor.cs * * Copyright (c) 2000 Microsoft Corporation */ namespace System.Web.UI.HtmlControls { using System.ComponentModel; using System; using System.Collections; using System.Web; using System.Web.UI; using System.Web.Util; using System.Security.Permissions; ////// [ DefaultEvent("ServerClick"), SupportsEventValidation, ] public class HtmlAnchor : HtmlContainerControl, IPostBackEventHandler { private static readonly object EventServerClick = new object(); /* * Creates an intrinsic Html A control. */ ///The ////// class defines the methods, properties, and /// events for the HtmlAnchor control. /// This /// class /// allows programmatic access to the /// HTML <a> element on the server. /// public HtmlAnchor() : base("a") { } [ WebCategory("Behavior"), DefaultValue(true), ] public virtual bool CausesValidation { get { object b = ViewState["CausesValidation"]; return((b == null) ? true : (bool)b); } set { ViewState["CausesValidation"] = value; } } /* * Href property. */ ///Initializes a new instance of the ///class. /// [ WebCategory("Navigation"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), UrlProperty() ] public string HRef { get { string s = Attributes["href"]; return((s != null) ? s : String.Empty); } set { Attributes["href"] = MapStringAttributeToString(value); } } /* * Name of group this radio is in. */ ///Gets or sets the URL target of the link specified in the /// ////// server control. /// [ WebCategory("Navigation"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public string Name { get { string s = Attributes["name"]; return((s != null) ? s : String.Empty); } set { Attributes["name"] = MapStringAttributeToString(value); } } /* * Target window property. */ ///Gets or sets the bookmark name defined in the ////// server /// control. /// [ WebCategory("Navigation"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public string Target { get { string s = Attributes["target"]; return((s != null) ? s : String.Empty); } set { Attributes["target"] = MapStringAttributeToString(value); } } /* * Title property. */ ////// Gets or /// sets the target window or frame /// to load linked Web page content into. /// ////// [ WebCategory("Appearance"), Localizable(true), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public string Title { get { string s = Attributes["title"]; return((s != null) ? s : String.Empty); } set { Attributes["title"] = MapStringAttributeToString(value); } } [ WebCategory("Behavior"), DefaultValue(""), WebSysDescription(SR.PostBackControl_ValidationGroup) ] public virtual string ValidationGroup { get { string s = (string)ViewState["ValidationGroup"]; return((s == null) ? string.Empty : s); } set { ViewState["ValidationGroup"] = value; } } ///Gets or sets the title that /// the browser displays when identifying linked content. ////// [ WebCategory("Action"), WebSysDescription(SR.HtmlControl_OnServerClick) ] public event EventHandler ServerClick { add { Events.AddHandler(EventServerClick, value); } remove { Events.RemoveHandler(EventServerClick, value); } } private PostBackOptions GetPostBackOptions() { PostBackOptions options = new PostBackOptions(this, string.Empty); options.RequiresJavaScriptProtocol = true; if (CausesValidation && Page.GetValidators(ValidationGroup).Count > 0) { options.PerformValidation = true; options.ValidationGroup = ValidationGroup; } return options; } ///Occurs on the server when a user clicks the ///control on the /// browser. protected internal override void OnPreRender(EventArgs e) { base.OnPreRender(e); if (Page != null && Events[EventServerClick] != null) { Page.RegisterPostBackScript(); // VSWhidbey 489577 if (CausesValidation && Page.GetValidators(ValidationGroup).Count > 0) { Page.RegisterWebFormsScript(); } } } /* * Override to generate postback code for onclick. */ /// /// /// protected override void RenderAttributes(HtmlTextWriter writer) { if (Events[EventServerClick] != null) { Attributes.Remove("href"); base.RenderAttributes(writer); PostBackOptions options = GetPostBackOptions(); Debug.Assert(options != null); string postBackEventReference = Page.ClientScript.GetPostBackEventReference(options, true); Debug.Assert(!string.IsNullOrEmpty(postBackEventReference)); writer.WriteAttribute("href", postBackEventReference, true); } else { PreProcessRelativeReferenceAttribute(writer, "href"); base.RenderAttributes(writer); } } /* * Method used to raise the OnServerClick event. */ ////// protected virtual void OnServerClick(EventArgs e) { EventHandler handler = (EventHandler)Events[EventServerClick]; if (handler != null) handler(this, e); } /* * Method of IPostBackEventHandler interface to raise events on post back. * Button fires an OnServerClick event. */ ///Raises the ////// event. /// /// void IPostBackEventHandler.RaisePostBackEvent(string eventArgument) { RaisePostBackEvent(eventArgument); } ////// /// protected virtual void RaisePostBackEvent(string eventArgument) { ValidateEvent(UniqueID, eventArgument); if (CausesValidation) { Page.Validate(ValidationGroup); } OnServerClick(EventArgs.Empty); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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