当鼠标经过Gridview时有底色

 protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)//判定当前的行是否属于datarow类型的行
        {
            ////当鼠标放上去的时候 先保存当前行的背景颜色 并给附一颜色
            e.Row.Attributes.Add("onmouseover", "currentcolor=this.style.backgroundColor;this.style.backgroundColor='#DEEBFC',this.style.fontWeight='';");
            ////当鼠标离开的时候 将背景颜色还原的以前的颜色
            e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#ffffff',this.style.fontWeight='';");
            //单击行改变行背景颜色
            //e.Row.Attributes.Add("onclick", "this.style.backgroundColor='#99cc00';" );//this.style.color='buttontext';this.style.cursor='default';"

            //for (int i = 0; i < GridView1.Columns.Count; i++)
            //{
            //    e.Row.Cells[i].Attributes.Add("onmouseover", "this.oldcolor=this.style.backgroundColor;this.style.backgroundColor='#99ccff'");
            //    e.Row.Cells[i].Attributes.Add("onmouseout", "this.style.backgroundColor=this.oldcolor");
            //}

        }
    }