private void FillDataInGrid() { int position = Convert.ToInt32(ddlPosition.SelectedValue); string status = ddlStatus.SelectedValue; dt = banner_obj.GetListByPositionStatus(position, status); GridView1.DataSource = dt; GridView1.DataBind(); //GridViewRow FirstRow = GridView1.Rows[0]; //Button btnUp = (Button)FirstRow.FindControl("btnUp"); //btnUp.Enabled = false; //GridViewRow LastRow = GridView1.Rows[GridView1.Rows.Count - 1]; //Button btnDown = (Button)LastRow.FindControl("btnDown"); //btnDown.Enabled = false; }