public class SAPsystemconnect:IDestinationConfiguration
{
    public RfcConfigParameters GetParameters(string destinationName)
    {
        RfcConfigParameters parms = new RfcConfigParameters();
        if ("DEV".Equals(destinationName))
        {

            parms.Add(RfcConfigParameters.AppServerHost, "ECC6");
            parms.Add(RfcConfigParameters.SystemNumber, "04");
            parms.Add(RfcConfigParameters.User, "sapuser");
            parms.Add(RfcConfigParameters.Password, "newmaars1");
            parms.Add(RfcConfigParameters.Client, "800");
            parms.Add(RfcConfigParameters.Language, "EN");
            parms.Add(RfcConfigParameters.PoolSize, "5");
            parms.Add(RfcConfigParameters.MaxPoolSize, "10");
            parms.Add(RfcConfigParameters.IdleTimeout, "600");

        }
        return parms;
    }

    public bool ChangeEventsSupported()
    {
        //throw new NotImplementedException();
        return false;
    }

    public event RfcDestinationManager.ConfigurationChangeHandler ConfigurationChanged;



}

protected void logon_Click(object sender, EventArgs e)
    {

        SAPsystemconnect sapconn = new SAPsystemconnect();
        RfcDestinationManager.RegisterDestinationConfiguration(sapconn);
        RfcDestination rfcDest = null;
        rfcDest = RfcDestinationManager.GetDestination("DEV");

        RequestDetails reqobj = new RequestDetails();
        reqobj.GetRequestDetails(rfcDest);


      //  RfcDestinationManager.UnregisterDestinationConfiguration(sapconn);
        Response.Redirect("request.aspx");


             System.Environment.Exit(0);
    }

public class RequestDetails
{
    public string empid; //personnel numner
    public string name; //name of the employee
    public string department; //department of employee
    public string descr; //description of help
    public string problem; //problem
    public string solution; //solution for the problem
    public string status; //status of help
    public string findings; //proble found during verification ;
    public string resolution; //resolutions for problem detected ;
    public string recommend; //recommended action
    public string remarks; //remarks for work done;
    public string feedback; //user feedback for work done;
    public int dococde; //description of document code
    public int auth1; //personnel number;
    public int auth2; //personnel numnber;
    public string sapcheck; //checkbox
    public string othercheck;//checkbox
    public string priority; //priority of request(HIGH,MED,LOW)
    public string saptrans; //transaction drop down
    public string tranreq; //request/task
    public string followtrans; //follow transaction type
    public string followdoc; //follow transaction doc number



    public void GetRequestDetails(RfcDestination destination)
    {
        try
        {

            RfcRepository repo = destination.Repository;
            IRfcFunction createRequest = repo.CreateFunction("ZSAVE");
            createRequest.Invoke(destination);
            IRfcTable helpreqtab = createRequest.GetTable("ZHELP_REQTAB");
            RequestDetails reqobj = new RequestDetails();

            reqobj.empid = helpreqtab.GetString("ZREQ_EMPID");



        }
        catch (RfcCommunicationException e)
        {

        }
        catch (RfcLogonException e)
        {
            // user could not logon...
        }
        catch (RfcAbapRuntimeException e)
        {
            // serious problem on ABAP system side...
        }
        catch (RfcAbapBaseException e)
        {
            // The function module returned an ABAP exception, an ABAP message
            // or an ABAP class-based exception...
        }
    }
}

Element ZHELP_REQTAB of container metadata ZSAVE unknown

foreach (IRfcStructure str in helpreqtab)
 {
    //You can use get string if thefield type is string, you would use the proper Getmethod based on type of the field.
    empid = str["empid field name in table"].GetString()
 }