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How do I deal with the error: The remote server returned an error: (500) Internal Server Error. ? When downloading web page source

Error: The remote server returned an error: (500) Internal Server Error.

Sometimes the page source request fails and I get the above error, how do I check for this error prior to asking for webpage source and if error found skip downloading current page source?

Dim presentlink As String = String.Empty
Dim Mylinks As List(Of String) = New List(Of String)
        For i = 0 To Mylinks.Count - 1
            presentlink = ((New Net.WebClient).DownloadString(Mylinks(i)))
            If presentlink.Contains("This is the one I'm looking for") Then
            End If
Posted 12-May-13 13:25pm
Idle_Force at 13-May-13 0:27am
I don't see where you have loaded the MyLinks with any strings. So an empty string would yield a error 500 since it does not exist.

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