protected void Page_Load(object sender, EventArgs e)
 {
     if (!IsPostBack)
     {
         Business.university.CooperationRequest.CooperationRequestBusiness bsn = new Business.university.CooperationRequest.CooperationRequestBusiness();
         grdSignatures.DataSource = bsn.getSignature_Status();
         PersiaFiltering();
     }
 }
 protected void grdSignatures_NeedDataSource(object sender, Telerik.Web.UI.GridNeedDataSourceEventArgs e)
 {
     Business.university.CooperationRequest.CooperationRequestBusiness bsn = new Business.university.CooperationRequest.CooperationRequestBusiness();
     grdSignatures.DataSource = bsn.getSignature_Status();
 }