webBrowser control throws exception

I'm writing a C# program that makes use of the webBrowser control. Generally I've been successful in using it but have encountered a problem I can't figure out.

I intercept the DocumentCompleted event from my webBrowser control. During the processing of that event I create an additional webBrowser control and call its Navigate function to tell it to navigate to a specific URL. When I do that it throws an exception : "IWebBrowser2 get from the native ActiveX control did not succeed", and I can see that the axIWebBrowser2 property of the control is null.
My code is approximately like this:

private void webBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
webBrowser newWebBrowser = new webBrowser();
try
{
newWebBrowser.Navigate("http://www.somewebsite.com");
}
catch
{
MessageBox.Show("Excption was thrown!");
}
}

Is it possible that you can't instantiate and call the Navigate method for a webBrowser while processing the DocumentCompleted event for another webBrowser control?

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Sam Hobbs15y ago
The quickest way to get an answer is to create a small project that re-creates the problem. Make the application as small as possible but it must be something that does re-create the problem. Make it as easy as possible for others such as I to try the code. Don't give us code that is "approximately like" the code that causes the problem. If you can create code that re-creates the problem that exists entirely in a single function (or two functions maybe) that we can copy and paste into a project of our own, then that would be good.