title: Table parameters to SAP RFC are empty
body: <p>Im trying to pass a table parameter to a RFC from .net with no success.</p>
  
  <p>I am folowing this example.
  <a href="http://www.dataxstream.com/2012/03/sap-nco-3-0-how-to-pass-table-parameters-to-sap-rfc/" rel="nofollow noreferrer">pass type table parameter</a></p>
  
  <h2>1) C# CODE:</h2>
  
  <pre><code>        int low = 2015;
          int high = 2016;
          string sign = "I";
          string option= "BT";
  
          RfcConfigParameters parametros = SapConector_fch.ConexionAsap_fch(SapConector_fch);
          RfcDestination DestinoRFC = SapConector_fch.probarConexionASap_fch(parametros, this.Page);            
          RfcRepository repositorio = DestinoRFC.Repository;
          IRfcFunction zrfc_valorhh = repositorio.CreateFunction("ZRFC_VALORHH");
  
           IRfcTable it_ano = zrfc_valorhh.GetTable("ANO");
          //IRfcStructure it_ano = zrfc_valorhh.GetStructure("ANO");
  
  
            it_ano.Append();
            it_ano.SetValue("SIGN", sign);
            it_ano.SetValue("OPTION", option);
            it_ano.SetValue("LOW", low);
            it_ano.SetValue("HIGH", high); 
  
  
          try
          {
              zrfc_valorhh.Invoke(DestinoRFC);
          }
          catch (RfcAbapException ex)
          {
              Console.WriteLine(ex.Message);
              ClientScript.RegisterStartupScript(this.GetType(), "Exepcion al llamar el RFC", "alert('" +"Exepcion al llamar el RFC " +  ex.Message + "');", true);
          }
  </code></pre>
  
  <p>2) I know when the table parameter "ANO" comes empty because an exception is thrown wich is made by me in sap.<br>
  The exeption is EMPTYPARAMETER.</p>
  
  <pre><code>    FUNCTION ZRFC_VALORHH.
     *"*"Interfase local
     *"  TABLES
     *"      IT_VALORESHH STRUCTURE  ZSTRUCT_VALORESHH
     *"      ANO STRUCTURE  RNG_GJAHR
     *"  EXCEPTIONS
     *"      NODATA
     *"      EMPTYPARAMETER
     *"----------------------------------------------------------------------
  
    IF ano IS INITIAL.
      RAISE EMPTYPARAMETER.
    ENDIF.
  </code></pre>
  
  <p>3) I also tried this answer but not working.
  <a href="https://stackoverflow.com/questions/4783739/add-items-to-irfctable">another solution</a></p>
  
  <p>Please Help-</p>