Question

我需要在类之间传递一些变量，我有一个以下代码片段来解释这种情况。请注意以下代码来自app1，SimpleScene（）类是入口点。

class SimpleScene {
    bool isReady;
    bool result;

    Protected override Run() {
        // instance of class StateMonitor
        StateMonitor sm = new StateMonitor;
        Listener(sm);
        sm.proc();

        while(!isReady) {}

        result = func();
        if (result) {
            // need to inform StateMonitor to do a certain action, e.g. set bool flag = true, and StateMonitor does something iff flag == true;
        }
    }

    void OnReady(bool isOnReady) {
        if(isOnReady)
             isReady = true;
    }

    Private void Listener(StateMonitor sm) {
        sm.OnReady += new StateMonitor.ready(OnReady);
    }

    bool func() {
        //do something...
    }

}

class StateMonitor {
    public delegates void ready(bool isReady);
    public event ready OnReady;

    // start app2 as a new process
    public void proc() {
        Process p_app2 = new Process();
        // omit other startinfo for app2.
        p_app2.OutputDataReceived += new DataReceivedEventHandler(outputHandler);
        p_app2.Start();
        p_app2.BeginOutputReadLine();
    }        

    public void outputHandler(object sender, DataReceivedEventArgs line) {
        // omit output data line match
        if (OnReady != null)
            OnReady(true);
    }
}

类StateMonitor启动另一个应用程序 - 让我们说app2 - 并从app2读取stdout。根据输出字符串格式，它将执行不同的操作。

我的问题在于代码注释，我想在State = = true时通知StateMonitor做某些事情;我怎么能这样做？

谢谢

Answer 1

您将要使用线程。你将在StateMonitor中触发一个基于布尔循环的线程。然后，当您想要在该标志为真时执行某些操作时，从SimpleScene设置该布尔值。那里有很多例子。点击这里：

http://msdn.microsoft.com/en-us/library/7a2f3ay4(v=vs.90).aspx

Worker = StateMonitor

WorkerThreadExample = SimpleScene

通过委托或......在类之间传递参数？

1 个答案: