So I had a bit of trouble finding how to use JQuery to lookup stuff and pass it back to Selenium C#, but I got it working, so I thought I'd share what I've found.

In particular:

• How to pass IWebElements from C# to JQuery?
• How to get an array of objects back into C# from the results of the javascipt?

So I had a bit of trouble finding how to use JQuery to lookup stuff and pass it back to Selenium C#, but I got it working, so I thought I'd share what I've found.

In particular:

• How to pass IWebElements from C# to JQuery?
• How to get an array of objects back into C# from the results of the javascipt?

• javascript
• c#
• jquery
• selenium

1 Answer 1

Answering my own question here :)

You can pass webElements to the javascript and access them through arguments.

To get the results back into C#, you have to cast to <IReadOnlyCollection<IWebElement>>. For single elements, just use IWebElement. One trick for multiple results is you have to call toArray on the JQuery result, so that it returns a true array instead of an object.

var singleResult = Driver.ExecuteJavaScript<IWebElement>(
            "return $('.my-class')[0]");

IWebElement elementToPass = Driver.FindElement(By.Id("cool-id"));
var results = Driver.ExecuteJavaScript<IReadOnlyCollection<IWebElement>>(
            "return $(arguments[0]).children('.my-class').toArray()", elementToPass);