如何创建一个C＃事件处理程序可以在IronPython的处理？ [英] How do I create a C# event handler that can be handled in IronPython?

问题描述

我如何创建一个C＃事件处理程序可以在IronPython的处理呢？我使用IronPython的2.0.1

How do I create a C# event handler that can be handled in IronPython?

请注意。我能够处理来自系统类的事件，没有任何问题（如Window.KeyDown），但是当我尝试定义我自己的C＃事件，当我试图从IronPython的把它挂的异常。

Note that I am using IronPython 2.0.1. I am able to handle events from system classes with no problems (eg Window.KeyDown) but when I try to define my own C# event an exception is raised when I attempt to hook it from IronPython.

引发的异常是ArgumentTypeException，它有消息不能添加到私人事件。该消息似乎很奇怪考虑我想挂钩是公共事件

The exception thrown is ArgumentTypeException and it has the message "cannot add to private event". The message seems odd considering the event I am trying to hook is public.

我的C＃类看起来是这样的：

My C# class looks like this:

class Foo
{
    ...

    public event EventHandler Bar;
}

我的IronPython安装程序代码如下：

My IronPython setup code looks like this:

ScriptEngine engine = Python.CreateEngine();
ScriptRuntime runtime = engine.Runtime;
ScriptScope scope = runtime.CreateScope();
ScriptSource source = engine.CreateScriptSourceFromFile("Test.py");
Foo bar = new Foo();
scope.SetVariable("Foo", bar);
source.Execute(scope); <-- Exception is thrown here.

我的IronPython的脚本是这样的：

My IronPython script looks like this:

def BarHandler(*args):
    pass

Foo.Bar += BarHandler

有谁知道，如果我这样做不对吗？

Does anyone know if I am doing this wrong?

或者是IronPython的什么问题？

Or is something wrong with IronPython?

推荐答案

我想通出。

类必须是公众和事件。

例如

public class Foo
{
   ...   

    public event EventHandler Bar;
}

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