private void getProfessorRequests()
        {
            grd_Show.Visible = false;
            if (RCB.CheckedItems.Count > 0)
            {
                if (Session["Field"] != "")
                {
                    Session["Field"] = "";
                }
                if (Session["Resault"] != "")
                {
                    Session["Resault"] = "";
                }
                lbl_Final.Text = string.Empty;
                string    Resault = "";
                DataTable dt      = new DataTable();
                if (ddl_Daneshkade.SelectedValue == "0")
                {
                    rwd.RadAlert("لطفا دانشکده را انتخاب کنید", 0, 100, "پیام", "");
                }

                for (int i = 0; i <= RCB.CheckedItems.Count; i++)
                {
                    //dt.Rows.Add(int.Parse(RCB.CheckedItems[i].Value));
                    if (i != RCB.CheckedItems.Count)
                    {
                        Resault += RCB.CheckedItems[i].Value + " " + ",";
                    }
                    else
                    {
                        Resault += ")";
                    }
                }
                Session["Resault"] = Resault;
                lbl_Final.Text     = Resault.Replace(",)", "");
                Session["Field"]   = lbl_Final.Text;
                dt = FRB.GetDepartmanProf(lbl_Final.Text);
                if (dt.Rows.Count == 0)
                {
                    rwd.RadAlert("رکوردی وجود ندارد", 0, 100, "پیام", "");
                }
                else
                {
                    grd_Show.Visible    = true;
                    grd_Show.DataSource = dt;
                    PersiaFiltering();
                }
            }
        }