异步联网和GUI的C＃/通讯 [英] C# / Communication between Async networking and GUI

问题描述

我做异步网络中的C＃.NET与的TcpClient 和的TcpListener 类。 我使用的WinForms的GUI。

I'm doing async network in C#.NET with the TcpClient and TcpListener classes. I use WinForms for the GUI.

每当我收到的数据从远程计算机的操作做了不同的底层线程。

Whenever I receive data from a remote computer, the operation is done on a different underlying thread.

我需要做的是，每当我收到一个网络的响应来更新我的应用程序的GUI。

What I need to do is to update the GUI of my application whenever I receive a network response.

// this method is called whenever data is received
// it's async so it runs on a different thread
private void OnRead(IAsyncResult result)
{
    // update the GUI here, which runs on the main thread
    // (a direct modification of the GUI would throw a cross-thread GUI exception)
}

我怎样才能做到这一点？

How can I achieve that?

推荐答案

在的WinForms，你需要使用的 Control.Invoke方法（代表），以确保控制在UI线程更新。

In Winforms you need to use Control.Invoke Method (Delegate) to make sure that control is updated in the UI thread.

例如：

public static void PerformInvoke(Control ctrl, Action action)
{
    if (ctrl.InvokeRequired)
        ctrl.Invoke(action);
    else
        action();
}

用法：

PerformInvoke(textBox1, () => { textBox1.Text = "test"; });

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