310 lines
10 KiB
C#
310 lines
10 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="Command.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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using System;
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using System.Collections;
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using System.Collections.Specialized;
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using System.ComponentModel;
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using System.ComponentModel.Design;
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using System.Diagnostics;
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using System.Drawing.Design;
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using System.Web;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Security.Permissions;
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namespace System.Web.UI.MobileControls
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{
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/*
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* Mobile Command class.
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*
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* Copyright (c) 2000 Microsoft Corporation
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*/
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/// <include file='doc\Command.uex' path='docs/doc[@for="Command"]/*' />
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[
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DataBindingHandler("System.Web.UI.Design.TextDataBindingHandler, " + AssemblyRef.SystemDesign),
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DefaultEvent("Click"),
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DefaultProperty("Text"),
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Designer(typeof(System.Web.UI.Design.MobileControls.CommandDesigner)),
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DesignerAdapter(typeof(System.Web.UI.Design.MobileControls.Adapters.DesignerCommandAdapter)),
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ToolboxData("<{0}:Command runat=\"server\">Command</{0}:Command>"),
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ToolboxItem("System.Web.UI.Design.WebControlToolboxItem, " + AssemblyRef.SystemDesign)
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]
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[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
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[AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
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[Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
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public class Command : TextControl, IPostBackEventHandler, IPostBackDataHandler
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{
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private static readonly Object EventClick = new Object ();
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private static readonly Object EventItemCommand = new Object ();
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/// <include file='doc\Command.uex' path='docs/doc[@for="Command.OnPreRender"]/*' />
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protected override void OnPreRender(EventArgs e)
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{
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base.OnPreRender(e);
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// If this control will be rendered as an image
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Debug.Assert(ImageUrl != null);
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if (MobilePage != null
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&& ImageUrl.Length != 0
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&& MobilePage.Device.SupportsImageSubmit)
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{
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// HTML input controls of type image postback as name.x and
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// name.y which is not associated with this control by default
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// in Page.ProcessPostData().
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MobilePage.RegisterRequiresPostBack(this);
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}
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}
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/// <internalonly/>
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protected bool LoadPostData(String key, NameValueCollection data)
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{
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bool dataChanged;
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bool handledByAdapter =
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Adapter.LoadPostData(key, data, null, out dataChanged);
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// If the adapter handled the post back and set dataChanged this
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// was an image button (responds with ID.x and ID.y).
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if (handledByAdapter)
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{
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if(dataChanged)
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{
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Page.RegisterRequiresRaiseEvent(this);
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}
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}
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// Otherwise if the adapter did not handle the past back, use
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// the same method as Page.ProcessPostData().
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else if(data[key] != null)
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{
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Page.RegisterRequiresRaiseEvent(this);
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}
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return false; // no need to raise PostDataChangedEvent.
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}
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/// <internalonly/>
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protected void RaisePostDataChangedEvent() {
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}
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/// <include file='doc\Command.uex' path='docs/doc[@for="Command.SoftkeyLabel"]/*' />
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[
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Bindable(true),
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DefaultValue(""),
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MobileCategory(SR.Category_Behavior),
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MobileSysDescription(SR.Command_SoftkeyLabel)
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]
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public String SoftkeyLabel
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{
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get
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{
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String s = (String) ViewState["Softkeylabel"];
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return((s != null) ? s : String.Empty);
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}
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set
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{
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ViewState["Softkeylabel"] = value;
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}
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}
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/// <include file='doc\Command.uex' path='docs/doc[@for="Command.CommandName"]/*' />
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[
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Bindable(true),
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DefaultValue(""),
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MobileCategory(SR.Category_Behavior),
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MobileSysDescription(SR.Command_CommandName)
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]
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public String CommandName
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{
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get
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{
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String s = (String) ViewState["CommandName"];
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return((s != null) ? s : String.Empty);
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}
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set
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{
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ViewState["CommandName"] = value;
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}
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}
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/// <include file='doc\Command.uex' path='docs/doc[@for="Command.CommandArgument"]/*' />
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[
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Bindable(true),
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DefaultValue(""),
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MobileCategory(SR.Category_Behavior),
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MobileSysDescription(SR.Command_CommandArgument)
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]
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public String CommandArgument
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{
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get
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{
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String s = (String) ViewState["CommandArgument"];
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return((s != null) ? s : String.Empty);
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}
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set
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{
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ViewState["CommandArgument"] = value;
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}
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}
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/// <include file='doc\Command.uex' path='docs/doc[@for="Command.ImageUrl"]/*' />
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[
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Bindable(true),
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DefaultValue(""),
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Editor(typeof(System.Web.UI.Design.MobileControls.ImageUrlEditor),
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typeof(UITypeEditor)),
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MobileCategory(SR.Category_Appearance),
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MobileSysDescription(SR.Image_ImageUrl)
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]
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public String ImageUrl
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{
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get
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{
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String s = (String) ViewState["ImageUrl"];
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return((s != null) ? s : String.Empty);
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}
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set
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{
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ViewState["ImageUrl"] = value;
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}
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}
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/// <include file='doc\Command.uex' path='docs/doc[@for="Command.CausesValidation"]/*' />
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[
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Bindable(false),
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DefaultValue(true),
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MobileCategory(SR.Category_Behavior),
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MobileSysDescription(SR.Command_CausesValidation)
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]
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public bool CausesValidation
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{
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get
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{
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object b = ViewState["CausesValidation"];
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return((b == null) ? true : (bool)b);
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}
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set
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{
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ViewState["CausesValidation"] = value;
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}
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}
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/// <include file='doc\Command.uex' path='docs/doc[@for="Command.Format"]/*' />
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[
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Bindable(true),
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DefaultValue(CommandFormat.Button),
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MobileCategory(SR.Category_Appearance),
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MobileSysDescription(SR.Command_Format)
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]
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public CommandFormat Format
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{
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get
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{
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Object o = ViewState["Format"];
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return((o == null) ? CommandFormat.Button : (CommandFormat)o);
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}
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set
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{
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ViewState["Format"] = value;
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}
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}
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/// <include file='doc\Command.uex' path='docs/doc[@for="Command.OnClick"]/*' />
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protected virtual void OnClick(EventArgs e)
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{
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EventHandler onClickHandler = (EventHandler)Events[EventClick];
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if (onClickHandler != null)
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{
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onClickHandler(this,e);
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}
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}
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/// <include file='doc\Command.uex' path='docs/doc[@for="Command.OnItemCommand"]/*' />
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protected virtual void OnItemCommand(CommandEventArgs e)
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{
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CommandEventHandler onItemCommandHandler = (CommandEventHandler)Events[EventItemCommand];
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if (onItemCommandHandler != null)
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{
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onItemCommandHandler(this,e);
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}
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RaiseBubbleEvent (this, e);
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}
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/// <include file='doc\Command.uex' path='docs/doc[@for="Command.Click"]/*' />
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[
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MobileCategory(SR.Category_Action),
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MobileSysDescription(SR.Command_OnClick)
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]
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public event EventHandler Click
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{
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add
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{
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Events.AddHandler(EventClick, value);
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}
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remove
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{
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Events.RemoveHandler(EventClick, value);
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}
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}
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/// <include file='doc\Command.uex' path='docs/doc[@for="Command.ItemCommand"]/*' />
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[
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MobileCategory(SR.Category_Action),
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MobileSysDescription(SR.Command_OnItemCommand)
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]
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public event CommandEventHandler ItemCommand
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{
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add
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{
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Events.AddHandler(EventItemCommand, value);
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}
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remove
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{
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Events.RemoveHandler(EventItemCommand, value);
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}
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}
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/// <include file='doc\Command.uex' path='docs/doc[@for="Command.IPostBackEventHandler.RaisePostBackEvent"]/*' />
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/// <internalonly/>
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protected void RaisePostBackEvent(String argument)
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{
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if (CausesValidation)
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{
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MobilePage.Validate();
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}
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// It is legitimate to reset the form back to the first page
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// after a form submit.
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Form.CurrentPage = 1;
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OnClick (EventArgs.Empty);
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OnItemCommand (new CommandEventArgs(CommandName, CommandArgument));
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}
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/// <include file='doc\Command.uex' path='docs/doc[@for="Command.IsFormSubmitControl"]/*' />
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protected override bool IsFormSubmitControl()
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{
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return true;
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}
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#region IPostBackEventHandler implementation
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void IPostBackEventHandler.RaisePostBackEvent(String eventArgument) {
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RaisePostBackEvent(eventArgument);
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}
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#endregion
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#region IPostBackDataHandler implementation
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bool IPostBackDataHandler.LoadPostData(String key, NameValueCollection data) {
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return LoadPostData(key, data);
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}
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void IPostBackDataHandler.RaisePostDataChangedEvent() {
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RaisePostDataChangedEvent();
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}
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#endregion
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}
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}
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