Facebook Logout and Like

问题

I am new to VB.net and making a facebook windows app. I am doing just few simple things like login, log out and like a page. I was able to login in FB by using help from http://social.msdn.microsoft.com/Forums/en/vbgeneral/thread/94a8ce89-2318-4b14-9915-58f95ce58485

But now am stuck at log out and liking a page. I am using m.facebook.com so to keep my coding easy understandable and convenient.

Please tell me how to log out and like a page.

facebook uses a logout key that i am unable to extract from the page. And like is also creating some problem as there is no ID, so i cant use getelementbyid

thanks for help

回答1:

If someone is facing the same problem, here is the solution:

Facebook Logout:

Dim allelements As HtmlElementCollection = WebBrowser1.Document.All

    For Each webpageelement As HtmlElement In allelements

        If webpageelement.GetAttribute("data-sigil") = "logout" Then

            WebBrowser1.Navigate(webpageelement.GetAttribute("href"))

        End If

    Next

Facebook Page Like:

 Dim allelements As HtmlElementCollection = WebBrowser1.Document.All

    For Each webpageelement As HtmlElement In allelements

        If webpageelement.GetAttribute("value") = "Like" Then

            webpageelement.InvokeMember("click")                

        End If
    Next

来源：https://stackoverflow.com/questions/6989042/facebook-logout-and-like