ASP.NET自定义控件开发设计界面（设计时界面与运行时界面不同）

设计类:

  
    

   
     using
   
      System;

   
     using
   
      System.Collections.Generic;

   
     using
   
      System.Linq;

   
     using
   
      System.Text;

   
     using
   
      System.Web.UI;

   
     using
   
      System.Web.UI.WebControls;

   
     using
   
      System.IO;

   
     namespace
   
      ServerControl2
{
 
   
     public
   
      
   
     class
   
      Des:System.Web.UI.Design.ControlDesigner
 {
 
   
     public
   
      
   
     override
   
      
   
     string
   
      GetDesignTimeHtml()
 {
 StringWriter sw 
   
     =
   
      
   
     new
   
      StringWriter();
 HtmlTextWriter tw 
   
     =
   
      
   
     new
   
      HtmlTextWriter(sw);
 HyperLink hl 
   
     =
   
      
   
     new
   
      HyperLink();
 hl.Text 
   
     =
   
      
   
     "
   
     Hello, Control
   
     "
   
     ;
 hl.NavigateUrl 
   
     =
   
      
   
     "
   
     http://www.microsoft.com/china/msdn
   
     "
   
     ;
 hl.RenderControl(tw);
 tw.Write(HtmlTextWriter.SpaceChar);
 Label lbl 
   
     =
   
      
   
     new
   
      Label();
 lbl.BackColor 
   
     =
   
      System.Drawing.Color.LemonChiffon;
 lbl.Text 
   
     =
   
      hl.NavigateUrl;
 lbl.RenderControl(tw);
 
   
     return
   
      sw.ToString();
 }
 }
}
  
    

  
    

   
     using
   
      System;

   
     using
   
      System.Collections.Generic;

   
     using
   
      System.ComponentModel;

   
     using
   
      System.Linq;

   
     using
   
      System.Text;

   
     using
   
      System.Web;

   
     using
   
      System.Web.UI;

   
     using
   
      System.Web.UI.WebControls;


   
     namespace
   
      ServerControl2
{
 
 [Designer(
   
     "
   
     ServerControl2.Des,ServerControl2
   
     "
   
     ),DefaultProperty(
   
     "
   
     Text
   
     "
   
     )]
 [ToolboxData(
   
     "
   
     <{0}:ServerControl1 runat=server></{0}:ServerControl1>
   
     "
   
     )]
 
   
     public
   
      
   
     class
   
      ServerControl1 : WebControl,IPostBackEventHandler
 {
 [Bindable(
   
     true
   
     )]
 [Category(
   
     "
   
     Appearance
   
     "
   
     )]
 [DefaultValue(
   
     ""
   
     )]
 [Localizable(
   
     true
   
     )]
 
   
     public
   
      
   
     string
   
      Text
 {
 
   
     get
   
     
 {
 String s 
   
     =
   
      (String)ViewState[
   
     "
   
     Text
   
     "
   
     ];
 
   
     return
   
      
   
     "
   
     自定义控件aa
   
     "
   
     ;
 }
 
   
     set
   
     
 {
 ViewState[
   
     "
   
     Text
   
     "
   
     ] 
   
     =
   
      value;
 }
 }
 
   
     public
   
      
   
     int
   
      Speed
 {
 
   
     get
   
     ;
 
   
     set
   
     ;
 }
 
 
   
     protected
   
      
   
     override
   
      
   
     void
   
      RenderContents(HtmlTextWriter output)
 {
 output.Write(Text);
 output.Write(
   
     string
   
     .Format(
   
     @"
   
      <marquee width=400 scrollamount='{0}' behavior=alternate direction=left align=middle>弹来弹去跑马灯!</marquee>
   
     "
   
     ,Speed));
 
 }
 
   
     protected
   
      
   
     override
   
      
   
     void
   
      OnPreRender(EventArgs e)
 {

 }
 
   
     protected
   
      
   
     override
   
      
   
     void
   
      AddAttributesToRender(HtmlTextWriter writer)
 {
 writer.AddAttribute(HtmlTextWriterAttribute.Onclick,
   
     "
   
     Javascript:
   
     "
   
     +
   
     Page.GetPostBackEventReference(
   
     this
   
     ));
 writer.AddStyleAttribute(HtmlTextWriterStyle.BackgroundColor, 
   
     "
   
     red
   
     "
   
     );
 
   
     base
   
     .AddAttributesToRender(writer);
 }
 
   
     public
   
      
   
     event
   
      EventHandler click;
 
   
     public
   
      
   
     void
   
      RaisePostBackEvent(
   
     string
   
      eventArgument)
 {
 Onclick(EventArgs.Empty);
 }
 
   
     protected
   
      
   
     virtual
   
      
   
     void
   
      Onclick(EventArgs ex)
 {
 
   
     if
   
      (click
   
     !=
   
     null
   
     )
 {
 click(
   
     this
   
     ,ex);
 }
 
   
     //
   
      HttpContext.Current.Response.Redirect("
   
     http://www.baidu.com
   
     ");
   
     

   
     
 }
 }
}