自动处理过长字符串显示的Web控件

using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;

namespace cnblogs.birdshome.WebControls
{
     /**/ ///   <summary>
     ///  Summary description for AutoLabel.
     ///   </summary>
    [DefaultProperty("Text"), 
        ToolboxData("<{0}:AutoLabel runat=server></{0}:AutoLabel>")]
     public  class AutoLabel : System.Web.UI.WebControls.Label
     {
         protected  override  void CreateChildControls()
         {
             base.CreateChildControls ();
             this.Width = Unit.Percentage(100);
             this.Attributes["onmouseover"] = 
                 "if ( this.clientWidth < this.scrollWidth ) this.title = this.innerText; else this.title = '';";
             this.Attributes.CssStyle["white-space"] = "nowrap";
             this.Attributes.CssStyle["overflow"] = "hidden";
             this.Attributes.CssStyle["text-overflow"] = "ellipsis";
        }
    }
}