如何从ScriptSharp访问JavaScript? [英] How do I access JavaScript this from ScriptSharp?

问题描述

我正在尝试执行以下操作.

I'm trying to do the following.

var handler = e => { handle(); item.Unbind("event", this); }
item.Bind("event", handler);

在JavaScript中这将正常工作，但是ScriptSharp会使用该代码引用包含类的方法的实例来替换JavaScript的this.如何避免这种行为，并从lambda本身获取对lambda的引用?

In JavaScript this would properly work, but ScriptSharp replaces JavaScript's this with reference to the instance of class containing method with that code. How do I avoid this behavior and get a reference to the lambda from the lambda itself?

推荐答案

这是您的操作方法(假设Bind接受具有Action签名的委托):

Here's how you could do it (assuming Bind takes a delegate with the signature of an Action):

SomeObject item = ...;
Action handler = null;

handler = delegate() {
   // do something ... eg. call Handle();
   item.Unbind("event", handler);
};
item.Bind("event", handler);

此外，请参见以下问题:

Also, see this question: How to write a function in script# to be called with any object as this, not just with the instance of the class in which it is defined? for a technique for writing code that generates a "this" reference in script.

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