C# Windows 窗体应用程序 - 从另一个线程和类更新 GUI? [英] C# Windows Forms Application - Updating GUI from another thread AND class?

问题描述

我进行了大量搜索，但似乎找不到与我的具体问题相关的任何内容.

I've searched a ton, but I can't seem find anything relating to my specific problem.

我希望能够从另一个类 (SocketListener) 更新我的 MainUI 表单，并且在其中我有一个处理网络的线程 (clientThread).现在，我可以从网络线程运行简单的输出，例如写入调试器输出并创建 MessageBox.

I want to be able to update my MainUI form from another class (SocketListener) and within that I have a thread that handles the networking (clientThread). Right now I can run simple outputs from the networking thread such as writing to the debugger output and creating a MessageBox.

但我真正想做的是能够从 clientThread 调用代码，这些代码将在我的 MainUI 实例上执行操作.我该怎么做?

But what I really want to do is be able to invoke code from the clientThread that will do things on my MainUI instance. How can I do this?

此外，如果有人想要代码的特定部分，那么我可以发布它以帮助您更好地理解我的要求.

Also, if anyone wants specific portions of the code then I can post it to help give you a better understanding of what I'm asking.

最好的问候！

推荐答案

检查 InvokeRequired 的Control 类，如果为真，则调用Invoke 并传入一个委托(通常是匿名方法)，它可以在客户端线程上执行您想要执行的操作.

Check the InvokeRequired of the Control class, and if it's true, then call the Invoke and pass in a delegate (usually an anonymous method) that does what you want to do on the client's thread.

示例:

public void DoWork(Form form)
{
    if (form.InvokeRequired)
    {
        // We're on a thread other than the GUI thread
        form.Invoke(new MethodInvoker(() => DoWork(form)));
        return;
    }

    // Do what you need to do to the form here
    form.Text = "Foo";
}

这篇关于C# Windows 窗体应用程序 - 从另一个线程和类更新 GUI?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！