WCF服务合同和文本框 [英] WCF service contract and textbox

问题描述

我已经从Windows窗体创建了tcp WCF服务.我实现的operationcontract将更新文本框的文本.但是当客户端调用该操作时，文本框不会显示该文本.如何解决呢?

这是我的服务器:

I''ve create a tcp WCF service from windows form. The operationcontract that i implemented will update the text of a textbox. but When client call that operation, the textbox doesn''t show that text. How to solve this?

This is my server:

<br />
<pre lang="cs">using System;<br />
using System.Collections.Generic;<br />
using System.ComponentModel;<br />
using System.Data;<br />
using System.Drawing;<br />
using System.Linq;<br />
using System.Text;<br />
using System.Windows.Forms;<br />
using System.ServiceModel;<br />
using MiniChat;<br />
namespace MiniChatServer<br />
{<br />
    public partial class FrmMiniChatServer : Form, IServerContract<br />
    {<br />
        private ServiceHost host;<br />
        public FrmMiniChatServer()<br />
        {<br />
            InitializeComponent();<br />
        }<br />
        private void MiniChatServer_Load(object sender, EventArgs e)<br />
        {<br />
            host = new ServiceHost(typeof(FrmMiniChatServer));<br />
            host.Open();<br />
        }<br />
        #region IServerContract Members<br />
        public void ClientToServer(string msg)<br />
        {<br />
            textBox1.Text = "Client: " + msg;<br />
            MessageBox.Show(textBox1.Text);<br />
        }<br />
        #endregion<br />
        private void MiniChatServer_Closed(object sender, FormClosedEventArgs e)<br />
        {<br />
        }<br />
    }<br />
}</pre><br />
<br />

和客户

And Client

<br />
<pre lang="cs"><br />
ServerServices.IServerContract server = new ServerServices.ServerContractClient();<br />
server.ClientToServer("message from client");<br />
</pre><br />

和合同接口

and contract interfaces

<br />
<pre lang="cs"><br />
using System;<br />
using System.Collections.Generic;<br />
using System.Linq;<br />
using System.ServiceModel;<br />
namespace MiniChat<br />
{<br />
    public interface ICallback<br />
    {<br />
        [OperationContract(IsOneWay=true)]<br />
        void ServerToClient(string msg);<br />
    }<br />
    [ServiceContract(CallbackContract=typeof(ICallback))]<br />
    public interface IServerContract<br />
    {<br />
        [OperationContract(IsOneWay=true)]<br />
        void ClientToServer(string msg);<br />
    }<br />
<br />
}</pre><br />
<br />

在函数中:

In the function:

<br />
<pre lang="cs">public void ClientToServer(string msg)<br />
{<br />
    textBox1.Text = "Client: " + msg;<br />
    MessageBox.Show(textBox1.Text);<br />
}</pre><br />

MessageBox.Show(textBox1.Text);正确显示消息，但textBox1不显示任何内容.

MessageBox.Show(textBox1.Text); show message correctly, but textBox1 doesn''t show anything.

推荐答案

我看到您在这里做什么.尽管您的命名约定确实令人困惑.

替换

I see what you''r doing here. Although your naming convention is really confusing.

Replace

void IServerContract.ClientToServer(string msg) {
     textBox1.Text = "Client: " + msg;
}

与

with

public void ClientToServer(string msg) {
     textBox1.Text = "Client: " + msg;
}

然后转到您的IServerContract类，并为ClientToServer定义接口

Then go to your IServerContract Class and define the Interface for ClientToServer

public void ClientToServer(string msg);

然后更新您的客户端代码.

祝你好运！

Then update your client code.

Good luck!

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