HtmlCommandAdapter.cs source code in C# .NET

                        
Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / MIT / System / Web / UI / MobileControls / Adapters / HtmlCommandAdapter.cs / 1305376 / HtmlCommandAdapter.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

using System; 
using System.Collections.Specialized; 
using System.Diagnostics;
using System.IO; 
using System.Web;
using System.Web.UI;
using System.Web.UI.MobileControls;
using System.Drawing; 
using System.Security.Permissions;
 
#if COMPILING_FOR_SHIPPED_SOURCE 
namespace System.Web.UI.MobileControls.ShippedAdapterSource
#else 
namespace System.Web.UI.MobileControls.Adapters
#endif

{ 

    /* 
     * HtmlCommandAdapter class. 
     *
     * Copyright (c) 2000 Microsoft Corporation 
     */
    /// 
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    [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.")]
    public class HtmlCommandAdapter : HtmlControlAdapter 
    { 
        /// 
        protected new Command Control 
        {
            get
            {
                return (Command)base.Control; 
            }
        } 
 
        /// 
        public override void Render(HtmlMobileTextWriter writer) 
        {
            bool renderLink = false;
            bool renderImage = false;
 
            // If image is defined and renderable, just do it.  Otherwise,
            // render as a link if specified. 
            if (!String.IsNullOrEmpty(Control.ImageUrl) && 
                Device.SupportsImageSubmit)
            { 
                renderImage = true;
            }
            else if (Control.Format == CommandFormat.Link &&
                     Device.JavaScript) 
            {
                renderLink = true; 
            } 

 
            if (renderLink)
            {
                writer.EnterStyle(Style);
                Form form = Control.Form; 
                if (form.Action.Length > 0)
                { 
                    writer.Write("");
                    writer.WriteText(Control.Text, true);
                    writer.WriteEndTag("a"); 
                }
                else 
                { 
                    RenderBeginLink(writer, Constants.FormIDPrefix + form.UniqueID);
                    writer.WriteText(Control.Text, true); 
                    RenderEndLink(writer);
                }
                writer.ExitStyle(Style, Control.BreakAfter);
            } 
            else
            { 
                writer.EnterLayout(Style); 
                writer.WriteBeginTag("input");
                writer.WriteAttribute("name", Control.UniqueID); 

                if (renderImage)
                {
                    writer.WriteAttribute("type", "image"); 
                    writer.WriteAttribute("src", Control.ResolveUrl(Control.ImageUrl), true);
                    writer.WriteAttribute("alt", Control.Text, true); 
                } 
                else
                { 
                    writer.WriteAttribute("type", "submit");
                    writer.Write(" value=\"");
                    writer.WriteText(Control.Text, true);
                    writer.Write("\""); 
                }
 
                AddAttributes(writer); 
                writer.Write("/>");
                writer.ExitLayout(Style, Control.BreakAfter); 
            }

        }
 
        /// 
        public override bool LoadPostData(String key, 
                                          NameValueCollection data, 
                                          Object controlPrivateData,
                                          out bool dataChanged) 
        {
            dataChanged = false;

            // HTML input tags of type image postback with the coordinates 
            // of the click rather than the name of the control.
            String name = Control.UniqueID; 
            String postX = data[name + ".x"]; 
            String postY = data[name + ".y"];
            if (postX != null && postY != null 
                && postX.Length > 0 && postY.Length > 0)
            {
                // set dataChannged to cause RaisePostDataChangedEvent()
                dataChanged = true; 
                return true;
            } 
            // For other command control, defer to default logic in control. 
            return false;
        } 
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.