C# 总结QueueUserWorkItem传参几种方式案例详解

public static bool QueueUserWorkItem(WaitCallback callBack, object state);

publicstaticbool QueueUserWorkItem(WaitCallback callBack);

[ComVisible(true)]
public delegate void WaitCallback(object state);

ThreadPool.QueueUserWorkItem(delegate
{
　　for (int i = 0; i < 20 && TargetNode.Nodes.Count == 0; i++)
　　{
　　　　Thread.Sleep(100);
　　}
　　MainWindowCommandInterface.Invoke(delegate { TargetNode.Expand(); });
});

ThreadPool.QueueUserWorkItem(WaitForReboot, connection);

private void WaitForReboot(object o)
{
}

ThreadPool.QueueUserWorkItem(new WaitCallback(delegate(Object o)
{
　　ClientFillRectangle(0, 0, DesktopSize.Width, DesktopSize.Height, Color.Black);
}), null);

ThreadPool.QueueUserWorkItem(new WaitCallback(Connect), new KeyValuePair<VNCGraphicsClient, Exception>(vncClient, null));

private void Connect(object o)
{
}

ThreadPool.QueueUserWorkItem((WaitCallback)delegate(object o)
{
　　// Sleep a short time before closing the splash
　　Thread.Sleep(500);
　　Program.Invoke(Program.MainWindow, Program.CloseSplash);
});

ThreadPool.QueueUserWorkItem(o =>
{
　　Program.Invoke(Program.MainWindow, () =>
　　{
　　　　PerformStorageSystemScan();
　　　　if (systemsAfter.Count > systemsBefore.Count)
　　　　{
　　　　　　// the new item should be selected
.　　　　　　comboBoxStorageSystem.SelectedItem = systemsAfter.Find(ss => !systemsBefore.Contains(ss));
　　　　　　comboBoxStorageSystem.DroppedDown = true;
　　　　}
　　});
});