在调试WinForms应用程序时接收CrossThreadMessagingException [英] Receiving CrossThreadMessagingException while Debugging WinForms Application

问题描述

我使用Wndows XP SP3 x86 + VSTS 2008使用C＃编写一个简单的Windows Forms应用程序。有一个名为 button1 的按钮，这里是它的点击事件的事件处理程序，当执行if语句时，有 Microsoft.VisualStudio.Debugger。 Runtime.CrossThreadMessagingException 。有没有人有什么好的想法有什么问题？

  private void button1_Click（object sender，EventArgs e）
 {
 string recording = ConfigurationSettings.AppSettings [recording]; 
 
 //执行以下if语句时抛出异常
 if（recording.Equals（enable，StringComparison.InvariantCultureIgnoreCase））
 {
 CameraEncoder.Stop ）; 
} 
} 
  

还有一些代码：

  static WMEncoder CameraEncoder = new WMEncoder（）; 
  

EDIT1：

我很困惑应用Marc在我的代码中使用 Invoke 的想法。我应该使用以下代码段吗？

  CameraEncoder.Invoke（（MethodInvoker）delegate 
 {
 CameraEncoder .Stop（）; 
}）; 
  

解决方案

通常，当我们看到（定期）就像一个工作线程或更新UI的定时器 - 但是一个按钮点击应该通过UI线程提高，所以我不认为这是通常的问题。

$ b $那么，什么是相机？什么是录制？也没有解释，我们不能猜到没有引入额外的变量...

根据他们是什么，也许这将工作...

  camera.Invoke（（MethodInvoker）delegate 
 {
 if（camera.Equals（enable，StringComparison.InvariantCultureIgnoreCase ））
 {
 Recording.Stop（）; 
} 
}）; 
  

但不知道什么 canera 是，我正在抓住吸管...

I am using Wndows XP SP3 x86 + VSTS 2008 to write a simple Windows Forms application using C#. There is a button called button1 and here is the event handler for its click event, when executing the if statement, there is Microsoft.VisualStudio.Debugger.Runtime.CrossThreadMessagingException. Does anyone have any good ideas what is wrong?

private void button1_Click(object sender, EventArgs e)
{
    string recording = ConfigurationSettings.AppSettings["recording"];

    // exception thrown when executing the following if statement
    if (recording.Equals("enable", StringComparison.InvariantCultureIgnoreCase))
    {
        CameraEncoder.Stop();
    }
}

Some more code:

static WMEncoder CameraEncoder = new WMEncoder();

EDIT1:

I am confused how to apply Marc's idea of using Invoke in my code. Should I use the following code segment?

CameraEncoder.Invoke((MethodInvoker) delegate
{
        CameraEncoder.Stop();
});

解决方案

Normally, the problem when we see this (regularly) is something like a worker thread or a timer updating the UI - but a button click should be raised through the UI thread, so I don't think it is the "usual problem".

So: what is camera? And what is Recording? Neither is explained, and we can't guess without introducing extra variables...

Depending on what they are, maybe this'll work...

camera.Invoke((MethodInvoker) delegate
{
    if (camera.Equals("enable", StringComparison.InvariantCultureIgnoreCase))
    {
        Recording.Stop();
    }        
});

But without knowing what canera is, I'm clutching at straws...

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