private void browser_LoadCompleted(object sender, NavigationEventArgs e)
{
if (e.Uri.ToString() != "https://api.twitter.com/oauth/authorize")
{
return;
}
string verifier = GetVerifierFromPage();
TwitterHelper.Authenticate(this.requestToken, verifier);
var mw = new MainWindow();
mw.ShowActivated = true;
mw.Show();
this.Close();
}