private void searchStudent(FeraghatTahsilDTO feraghat)
        {
            int logId = -1;

            dt = business.GetCheckOutInfoByStCodeAndFamily(feraghat);
            if (dt.Rows.Count != 0)
            {
                logId = Convert.ToInt32(dt.Rows[0]["RequestLogID"].ToString());
            }

            if (isAlreadyExist())
            {
                if (logId != Convert.ToInt32(CheckOutStatusEnum.FareghReqStatus.end))
                {
                    string msg = "درخواست دانشجوی مورد نظر هنوز توسط اداره فارغ التحصیلان تایید نشده است";

                    RadWindowManager1.RadAlert(msg, 300, 100, "پیام", "closeStatusPopup", "");
                }
                else
                {
                    grd_Students.Visible = true;
                    var ds = dt.Clone();
                    foreach (DataRow row in dt.Rows)
                    {
                        if (Convert.ToInt64(row["RequestTypeID"]) == 15)
                        {
                            ds.Rows.Add(row.ItemArray);
                        }
                    }
                    grd_Students.DataSource = ds;
                    grd_Students.DataBind();
                    grd_Students.Visible = true;
                }
            }
            else
            {
                grd_Info.Visible = true;
                dt = bsn.getStudentInfo(feraghat);
                grd_Info.DataSource = dt;
                grd_Info.DataBind();

                ViewState.Add("dt", dt);
                grd_Info.Visible = true;
            }
        }