Gridview中二级联动

代码

  protected   void  drpZuoyedian_SelectedIndexChanged( object  sender, EventArgs e)
 {
        DropDownList drpZuoyedian  =  (DropDownList)sender;
        GridViewRow gvData  =  (GridViewRow)drpZuoyedian.NamingContainer;

         string  zuoyedian  =  drpZuoyedian.SelectedValue;
        DropDownList drpXianbie  =  (DropDownList)gvData.FindControl( " drpXianbie " );
         string  sqlxianbie  =   " select * from pubXianbie where parent_id=' "   +  zuoyedian  +   " ' " ;
        Util.BindDropDownList(drpXianbie, sqlxianbie,  " name " ,  " id " );
 }