protected void modDeleteCommand(Object sender, GridViewDeleteEventArgs e)
        {
            int id = Convert.ToInt32(GridView1.DataKeys[e.RowIndex].Value);
            ClassDivision d = new ClassDivision();
            d.DIVISION_ID = id;
            d.DeleteDivision();
            ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "alertMessage", "alert('ลบข้อมูลเรียบร้อย')", true);

            if (txtSearchDivisionName.Text != "" || ddlSearchCampus.SelectedIndex != 0 || ddlSearchFaculty.SelectedIndex != 0)
            {
                GridView1.EditIndex = -1; ;
                BindData1();
            }
            else
            {
                GridView1.EditIndex = -1; ;
                BindData();
            }
        }