private void fillGv()
        {
            DropSemester obj  = new DropSemester();
            DataTable    TBL1 = obj.dtNotAcceptDropSemesterAcademicAdvisorApplication();

            gvDropSemester.DataSource = TBL1;
            gvDropSemester.DataBind();
        }
        protected void ddlRequest_SelectedIndexChanged(object sender, EventArgs e)
        {
            int ID = Convert.ToInt32(Session["ID"].ToString());

            if (ddlRequest.SelectedIndex != 0 && ddlRequest.SelectedIndex != -1)
            {
                if (Convert.ToInt32(ddlRequest.SelectedValue.ToString()) == 4)
                {
                    AlternativeSub obj = new AlternativeSub();
                    DataTable      dt  = obj.dtNotAcceptAliSubAcademicAdvisorApplication(ID);
                    gvRequest.DataSource = dt;
                    gvRequest.DataBind();
                }
                else if (Convert.ToInt32(ddlRequest.SelectedValue.ToString()) == 5)
                {
                    DropSemester obj = new DropSemester();
                    DataTable    dt  = obj.dtNotAcceptDropSemesterAcademicAdvisorApplication(ID);
                    gvRequest.DataSource = dt;
                    gvRequest.DataBind();
                }
            }
        }