回调不在类的对象中工作 [英] Callback not working in the object of the class

问题描述

 Here in the test method CheckAll() i am getting notifiacation in the callback class.

但是它没有点击acquisitionCallback_AcquisitionProgressEvent演示类。

but it was not hitting the acquisitionCallback_AcquisitionProgressEvent in the demo class.

非常感谢任何工作代码

public class AcquisitionCallback ：IAcquisitionCallback

{

  &NBSP;公共事件EventHandler< AcquisitionScanProgressInfo> AcquisitionProgressEvent;



  &NBSP; public void ScanProgressUpdate（AcquisitionScanProgressInfo aInfo）

  &NBSP; {

  &NBSP; &NBSP; &NBSP; if（AcquisitionProgressEvent！= null）

  &NBSP; &NBSP; &NBSP; {

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; AcquisitionProgressEvent.Invoke（this，aInfo）;

  &NBSP; &NBSP; &NBSP; }¥b $ b  &NBSP; }
}



公共课程演示

{

  &NBSP; public void SubscribeNotifications（）

  &NBSP; {

  &NBSP; &NBSP; &NBSP; acquisitionCallback.AcquisitionProgressEvent + = acquisitionCallback_AcquisitionProgressEvent;

  &NBSP; }


  &NBSP; private void acquisitionCallback_AcquisitionProgressEvent（object sender，AcquisitionScanProgressInfo e）

  &NBSP; {

$
  &NBSP; }


  &NBSP;私人收购回收收购回扣;



  &NBSP; public bool GetDummyData（）

  &NBSP; {

  &NBSP; &NBSP; &NBSP; SubscribeNotifications（）;



  &NBSP; &NBSP; &NBSP; //调用一些功能 会触发通知和 等待一段时间 

  &NBSP; &NBSP; &NBSP;返回true;

  &NBSP; }
}



公共类测试

{

  &NBSP; [测试]

  &NBSP; public void CheckAll（）

  &NBSP; {

  &NBSP; &NBSP; &NBSP;演示d =新演示（）;

  &NBSP; &NBSP; &NBSP; bool b =  d.GetDummyData（）;

  &NBSP; &NBSP; &NBSP; Assert.IsTrue（b）;

  &NBSP; }¥b $ b}

public class AcquisitionCallback : IAcquisitionCallback
{
    public event EventHandler<AcquisitionScanProgressInfo> AcquisitionProgressEvent;

    public void ScanProgressUpdate(AcquisitionScanProgressInfo aInfo)
    {
        if (AcquisitionProgressEvent != null)
        {
            AcquisitionProgressEvent.Invoke(this, aInfo);
        }
    }
}

public class Demo
{
    public void SubscribeNotifications()
    {
        acquisitionCallback.AcquisitionProgressEvent += acquisitionCallback_AcquisitionProgressEvent;
    }

    private void acquisitionCallback_AcquisitionProgressEvent(object sender, AcquisitionScanProgressInfo e)
    {

    }

    private AcquisitionCallback acquisitionCallback ;

    public bool GetDummyData()
    {
        SubscribeNotifications();

        //call some function which  will trigger a notifications and  wait for a time 
        return true;
    }
}

public class Test
{
    [Test]
    public void CheckAll()
    {
        Demo d = new Demo();
        bool b=  d.GetDummyData();
        Assert.IsTrue(b);
    }
}

推荐答案

嗨我Gopi，

Hi Its me Gopi,

您的代码错误，无法调试。您可以上传可调试代码。这将有助于我们快速分析您的问题。

Your code is wrong and cannot be debugged. You can upload a debugable code. This will help us quickly analyze your problem.

我猜你正在使用一个接口来提供回调机制。所以我尝试实现以下接口回调。

I guess that you are using an Interface to provide Callback mechanism. So I tried to implement the following interface callback.

以下代码供您参考。

 public class AcquisitionScanProgressInfo
    {
        public string value { get; set; }
    }


    public interface IAcquisitionCallbacktest
    {
        void ScanProgressUpdate(AcquisitionScanProgressInfo aInfo);
    }

    //Event sender
    public class AcquisitionCallback : IAcquisitionCallbacktest
    {
        public event EventHandler<AcquisitionScanProgressInfo> AcquisitionProgressEvent;

        public void ScanProgressUpdate(AcquisitionScanProgressInfo aInfo)
        {
            if (AcquisitionProgressEvent != null)
            {
                MessageBox.Show("Call Event");
                AcquisitionProgressEvent.Invoke(this, aInfo);
            }
        }
    }

    //event recipient
    public class Demo
    {
        public Demo(AcquisitionCallback Acll)
        {
            Acll.AcquisitionProgressEvent+= acquisitionCallback_AcquisitionProgressEvent;
        }

        private void acquisitionCallback_AcquisitionProgressEvent(object sender, AcquisitionScanProgressInfo e)
        {
            MessageBox.Show("Call back event : "+e.value);
        }
    }



// Now to trigger the event

            AcquisitionCallback Acall = new AcquisitionCallback();
            Demo demost = new Demo(Acall);
            AcquisitionScanProgressInfo a = new AcquisitionScanProgressInfo();
            a.value = "0099008";
            Acall.ScanProgressUpdate(a);

最好的问候，

Yohann Lu

Yohann Lu

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