更新时间:2023-12-06 12:15:40
您是否尝试过MSDN的 Control.Invoke
Did you try MSDN Control.Invoke
我刚写了一个小的WinForm程序来演示Control.Invoke。 在创建形式,开始在后台线程一些工作。之后,工作完成后,在更新标签的状态。
I just wrote a little WinForm application to demonstrate Control.Invoke. When the form is created, Start some work on background thread. After that work is done, Update the status in a label.
public Form1()
{
InitializeComponent();
//Do some work on a new thread
Thread backgroundThread = new Thread(BackgroundWork);
backgroundThread.Start();
}
private void BackgroundWork()
{
int counter = 0;
while (counter < 5)
{
counter++;
Thread.Sleep(50);
}
DoWorkOnUI();
}
private void DoWorkOnUI()
{
MethodInvoker methodInvokerDelegate = delegate()
{ label1.Text = "Updated From UI"; };
//This will be true if Current thread is not UI thread.
if (this.InvokeRequired)
this.Invoke(methodInvokerDelegate);
else
methodInvokerDelegate();
}