vb.net if webbrowser控件上的语句

Question

Morning! (atleast in the US its morning).

I have an app with multiple buttons that load different sites using the webbrowser control. I have the below code to auto login to an email website. However, if I browse to another site and then click the email signin button to execute the below code, it errors out. It errors out because it already signed me in to the site the first time and now since the credentials are cached it logs me right in and bypasses the login page.

How do I check if the login page doesn't exist, then exit sub.

WebBrowser1.Navigate(My.Settings.emailURL)
            WaitForPageLoad()
            WebBrowser1.Document.GetElementById("user").InnerText = My.Settings.emailUN
            WebBrowser1.Document.GetElementById("passwd").InnerText = My.Settings.emailPW
            'WebBrowser1.Document.GetElementById("remember_me").SetAttribute("checked", "false")
            WebBrowser1.Document.DomDocument.forms(0).submit()

I tried the below but it didn't work:

If WebBrowser1.Navigate(My.Settings.emailURL) <> My.Settings.emailURL

Im assuming it didn't work because its a navigate command

Answer 1

Figured it out. The web address is unique if you're signed in and displays a static web url, so I did a small if statement.

If WebBrowser1.Url.AbsoluteUri.StartsWith(My.Settings.webmailURL)
Exit Sub
Else
Sign in......
end if

Hans thanks for the help, you got me thinking.