我构建了一个Testbox来了解Windows窗体应用程序中的线程.Silverlight和Java提供了Dispatcher,它在更新GUI元素时非常有用.
代码示例:声明类代表
public delegate void d_SingleString(string newText);
Run Code Online (Sandbox Code Playgroud)
创建线程
_thread_active = true;
Thread myThread = new Thread(delegate() { BackGroundThread(); });
myThread.Start();
Run Code Online (Sandbox Code Playgroud)
线程功能
private void BackGroundThread()
{
while (_thread_active)
{
MyCounter++;
UpdateTestBox(MyCounter.ToString());
Thread.Sleep(1000);
}
}
Run Code Online (Sandbox Code Playgroud)
委派TextBox更新
public void UpdateTestBox(string newText)
{
if (InvokeRequired)
{
BeginInvoke(new d_SingleString(UpdateTestBox), new object[] { newText });
return;
}
tb_output.Text = newText;
}
Run Code Online (Sandbox Code Playgroud)
有没有办法在BeginInvoke方法中声明Delate宣言?!
就像是
BeginInvoke(*DELEGATE DECLARATION HERE*, new object[] { newText });
Run Code Online (Sandbox Code Playgroud)
非常感谢,rAyt