C# DataTable to IrfcTable (SAP)

DataTable dtrfc = new DataTable();
RfcConfigParameters rfc = new RfcConfigParameters();
rfc.Add(RfcConfigParameters.Name, “mySapName”);
rfc.Add(RfcConfigParameters.AppServerHost, ConfigurationManager.AppSettings[“SAPIP”].ToString());
rfc.Add(RfcConfigParameters.Client, “700”);
rfc.Add(RfcConfigParameters.User, ConfigurationManager.AppSettings[“SAPUSERID”].ToString());
rfc.Add(RfcConfigParameters.Password, ConfigurationManager.AppSettings[“SAPPWD”].ToString());
rfc.Add(RfcConfigParameters.SystemNumber, ConfigurationManager.AppSettings[“SYSTEMNO”].ToString());
rfc.Add(RfcConfigParameters.Language, “EN”);
rfc.Add(RfcConfigParameters.PoolSize, “5”);
rfc.Add(RfcConfigParameters.PeakConnectionsLimit, “10”);
rfc.Add(RfcConfigParameters.ConnectionIdleTimeout, “25000”);
RfcDestination rfcDest = RfcDestinationManager.GetDestination(rfc);
RfcRepository rfcRep = rfcDest.Repository;
IRfcFunction
function = rfcRep.CreateFunction(“ << RFC Name >> ”);
//Get reference to table object
IRfcTable Gt_ReportTable = function.GetTable(“GT_TABLE”);
DataTable dtTable = new DataTable();
dtTable = (DataTable) Session[“ << DataTable Object >> ”];
foreach(DataRow oRow in dtTable.Rows)
{
    Gt_ReportTable.Append();
    Gt_ReportTable.SetValue(“ << Table Field Name >> ”, Convert.ToString(oRow[“ << Field Name >> ”]));
}
IRfcTable POReports = function.GetTable(“IT_Output”);

function.SetValue(“IDATE”, << Date Value >> );

function.SetValue(“MATNR”, ddlpublication.SelectedItem.Value);

function.SetValue(“GT_TABLE”, Gt_ReportTable);

function.Invoke(rfcDest);
int NumberOfRows = POReports.Count;