完成功能是DataGrid的页面选中事件、鼠标事件、双击事件改变TR的色彩。代码很简单，只是一点JS操作。

JS文件:GridControl.js
=============================

/*------------ DataGrid鼠标事件处理 ------------
功能:用于数据梆定后鼠标事件
参数说明:
obj:对像this
fontColor:字体颜色
backColor:背景颜色
----------------------------------------------*/

var objState

//------------鼠标经过时-----------
function OnFoucsMouseOver( obj,fontColor,backColor )
{
 if ( obj.rowIndex > 0 )
 {
  obj.style.color = fontColor;
  obj.style.backgroundColor = backColor;
 }
}

//-----------鼠标离开时-----------
function OnFoucsMouseOut( obj,fontColor,backColor )
{
 if ( obj.rowIndex > 0 )
 {
  if ( obj != objState )
  {
   obj.style.color = fontColor;
   obj.style.backgroundColor = backColor;
  }
 }
}

//-----------鼠标单击时-----------
function OnFoucsClick( obj,fontColor,backColor )
{
 if ( obj.rowIndex > 0 )
 {
  if ( objState != null )
  {
   objState.style.color = "";
   objState.style.backgroundColor = "";
  }
  obj.style.color = fontColor;
  obj.style.backgroundColor = backColor;
  
  objState = obj;
 }
}

//-----------鼠标双击时-----------
function OnFoucsDbClick( obj,fontColor,backColor,openUrl )
{
 //参数openUrl为要开的新窗口的地址
 if ( obj.rowIndex > 0 )
 {
  if ( objState != null )
  {
   objState.style.color = "";
   objState.style.backgroundColor = "";
  }
  obj.style.color = fontColor;
  obj.style.backgroundColor = backColor;
  
  objState = obj;
  
  window.open( openUrl );
 }
}

==========================================

后台数据梆定例子：

==========================================

  private void dgList_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
  {
   //
   if ( e.Item.ItemIndex != -1 )
   {
    e.Item.Attributes.Add( "onMouseOver","OnFoucsMouseOver(this,''''#FFFFFF'''',''''#000000'''');" );
    e.Item.Attributes.Add( "onMouseOut","OnFoucsMouseOut(this,''''#000000'''',''''#FFFFFF'''');" );
    e.Item.Attributes.Add( "onClick","OnFoucsClick( this,''''#FFFFFF'''',''''#000000'''' );" );
    e.Item.Attributes.Add( "onDblClick","OnFoucsDbClick( this,''''#FFFFFF'''',''''#000000'''',''''about:bank'''' );" );
   }
  }

==========================================

前台.aspx页面调用JS文件：

<script language="javascript" src="GridControl.js"></script>