protected void LoadProfessionalInvoices() { if (Request.QueryString["FromDate"] == null || Request.QueryString["ToDate"] == null) { //lblMessage.Text = Resources.GeneralResource.ParameterError; return; } DateTime fromDate = DateTime.Parse(Request.QueryString["FromDate"]); DateTime toDate = DateTime.Parse(Request.QueryString["ToDate"]); string professional = Request.QueryString["Professional"]; RptProfessionalInvoices rtck = new RptProfessionalInvoices(fromDate, toDate, professional, ctx); ReportViewer1.Report = rtck; }