如何在C＃WebBrowser中插入文件js并使用它？

Question

Is it possible to inject javascript into the .NET WebBrowser Windows Forms control? If so, how would I go about doing this?

Answer 1

You can execute any javascript you want from the WebBrowser control. See an example here .

I'd recommend doing something like this in javascript to load an external js file:

var element = document.createElement('script');
element.setAttribute('type', 'text/javascript');
element.setAttribute('src', 'http://code.jquery.com/jquery-1.6.2.min.js');
document.getElementsByTagName('head')[0].appendChild(element);

I'm loading JQuery specifically here.

I believe you can just call yourBrowser.Document.InvokeScript() and pass a huge JS string in to do whatever you want.

UPDATE:

A comment pointed out you can only call existing JS functions with InvokeScript. Turns out you can do something similar in C#.

See the top answer on this SO link.