WCF服务器未将数据发送到另一台计算机上的Excel

Question

I have a C# application which takes data in from a sensor.

It has the code below: (unfortunately not written by me and not documented, and the old developer has long left the country).

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel;

namespace Client
{
    [ServiceContract]
    public interface IDataRequest
    {
        [OperationContract]
        string query(string instr, string attr);
    }

    public class DataRequest : IDataRequest
    {
        public string query(string symbol, string attr)
        {
            //data_set is a simple dictionary in another file
            Data data = MAIN.data_set[symbol].Value;
            return data.last;//numeric value of sensor reading
        }
    }

    class WCFServer
    {
        ServiceHost host = null;
        public void open()
        {
            host = new ServiceHost(
                typeof(DataRequest),
                new Uri[]{new Uri("net.pipe://localhost")});

            host.AddServiceEndpoint(typeof(IDataRequest), new NetNamedPipeBinding(), "DataRequest");

        try
        { 
            host.Open();
        }
        catch (AddressAlreadyInUseException) { }
        }

        public void close()
        {
        try
        {
            host.Close();
        }
        catch (CommunicationObjectFaultedException) { }
        }

    }
}

Then in Excel, I can place in a cell: =RTD("data",,"sensor1","last"

Everything works fine on the one computer.

However, when I move the application and excel file to another computer, nothing works, instead of seeing the data value streaming into excel I just see #N/A. The client application itself works on another computer, so i know the C# code is fine, just something to do with the WCF link from C# to Excel.

Is there something else involved? Registration of the WCF server or anything?

Answer 1

在RTD中添加服务器名称：RTD（“ data，server_name，” sensor1“，” last“）。文档： https : //support.microsoft.com/zh-cn/kb/289150