How do I call a method on a WebBrowser inside an event handler?

Question

This is what I have:

public void initiate(WebBrowser browser)
{         
   browser.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(refDocumentCompleted);
   // navigate browser to the referal Uri
   browser.Navigate(refreral);

   browser.DocumentCompleted -= refDocumentCompleted;
   //remove here so that it doesn't do this everytime a document is completed, i want it just in this method
}

private void refDocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
    // want to call navigate method on browser here. but Its out of scope.
}

What I would like it to do is, navigating to referral, then once that is loaded navigate to another page stored as a global string in the class.

I'm sure my trouble here is from a poor understanding of how events work, I've tried to read up on it, but can't seem to get my head around it but don't think I need to create my own handler.

Answer 1

You already have the webbrowser object. You just need to cast it:

((WebBrowser)sender).Navigate(...);

etc.

Answer 2

Use lambdas, e.g.:

public void initiate(WebBrowser browser)
{

    browser.DocumentCompleted += (sender, e) => {
        browser.DoStuff(); // it's in scope via closure
    };

    // etc
}

EDIT: to add / remove it, assign the lambda to a variable:

public void initiate(WebBrowser browser)
{

    var doStuff = (sender, e) => {
        browser.DoStuff(); // it's in scope via closure
    };

    browser.DocumentCompleted += doStuff;

    // etc

    browser.DocumentCompleted -= doStuff;
}