Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
WebBrowser1.Navigate("https://accounts.google.com/ServiceLogin?uilel=3&service=youtube&passive=true&continue=http%3A%2F%2Fwww.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26feature%3Dsign_in_button%26nomobiletemp%3D1%26hl%3Dcs_CZ%26next%3D%252F&hl=cs_CZ<mpl=sso")
End Sub
Private Sub WebBrowser1_DocumentCompleted(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
Dim theElementCollection As HtmlElementCollection
theElementCollection = WebBrowser1.Document.GetElementsByTagName("input")
For Each curElement As HtmlElement In theElementCollection
Dim controlName As String = curElement.GetAttribute("name").ToString
If controlName = "Email" Then
curElement.SetAttribute("Value", "Your Email")
ElseIf controlName = "Passwd" Then
curElement.SetAttribute("Value", "Your Password")
End If
Next
theElementCollection = WebBrowser1.Document.GetElementsByTagName("input")
For Each curElement As HtmlElement In theElementCollection
If curElement.GetAttribute("name").Equals("signIn") Then
curElement.InvokeMember("click")
End If
Next
End Sub
End Class