private void setGridDatasource()
 {
     if (ddlTerm.SelectedIndex >= 0)
     {
         DataTable dt = new DataTable();
         Business.university.CooperationRequest.CooperationRequestBusiness bsn = new Business.university.CooperationRequest.CooperationRequestBusiness();
         if (Convert.ToInt32(Session[sessionNames.roleID].ToString()) == (int)DTO.RoleEnums.کارشناس_مالی ||
             Convert.ToInt32(Session[sessionNames.roleID].ToString()) == (int)DTO.RoleEnums.مدیر_مالی)
         {
             dt = bsn.getContractByStatus(3, ddlTerm.SelectedValue);
         }
         else
         {
             dt = bsn.getAllContracts_Status(ddlTerm.SelectedValue);
         }
         grdContract.DataSource = null;
         if (dt.Rows.Count > 0)
         {
             grdContract.DataSource = dt;
         }
     }
 }