使用C#怀疑事件处理程序 [英] Doubt in event handlers using C#

问题描述

大家好，
我应该在我的项目中处理一个事件(C#，Visual Studio).

有两个与表单相关的文件.两个文件中都有key_down事件.
我该如何确定首先调用哪个文件的事件.

我猜测一个事件永远不会被调用.

帮助我解决此问题.

Hi all,
I am supposed to handle an event in my project (c#,, visual studio ).

There are two files related to a form. there is key_down event in both the files.
How can i make out that which file''s event is called first.

I have a guess that in one file the events is never called.

Help me out to solve this issue.

推荐答案

使用Visual Studio调试器?怎么说?

Using Visual Studio DEBUGGER? What say?

Sandeep是正确的.只需在两个处理程序中都设置一个断点，在调试模式下运行您的应用程序，敲一个键，看看您首先在哪里停止.

通常，应按分配的相同顺序调用处理程序:

Sandeep is right. Just put a break point into both handlers, run your app in debug mode, hit a key and see where you stop first.

Normally, your handlers should be called in the same order of the assignements:

...
{
     //first assignement
     MyEvent += MyEventHandler1;
     //Second assignement
     MyEvent += MyEventHandler2;
}

void MyEventHandler1(object sender, EventArgs e)
{
    //will be called first
}
void MyEventHandler2(object sender, EventArgs e)
{
    //will be called after
}

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