WebBrowser document cast not valid

Question

I\'ve got a WebBrowser control on my page. To fire some javascript on a page displayed in the browser control, I call this.myBrowser.Document.InvokeScript(\"Test\");

Answer 1

Figured it out. My call was being invoked from a serial port data received event, which doesn't execute on the main GUI thread. I used a this.Invoke() method call to get my code to execute on the main GUI thread, all is good now!