Table tbVal = (Table)grdList.Controls[0];
TableRow trVal = tbVal.Rows[0];
Control ctlValSub = trVal.FindControl("ckbAll");
if (ctlValSub.GetType().ToString() == "System.Web.UI.WebControls.CheckBox")
{
CheckBox ckbVal = (CheckBox)ctlValSub;
}
TableRow trVal = tbVal.Rows[0];
Control ctlValSub = trVal.FindControl("ckbAll");
if (ctlValSub.GetType().ToString() == "System.Web.UI.WebControls.CheckBox")
{
CheckBox ckbVal = (CheckBox)ctlValSub;
}