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07.01.2008 at 04:23AM PDT, ID: 23529713
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Determine if URI is a link to a file or webpage

Asked by webtubbs in Microsoft Visual Basic.Net, .NET, .NET Framework 2.0

Hi Guys,

I'm trying to put a routine together that can check if a URI is a link to a downloadable file, or a webpage. If it's a webpage, I'd simply launch the default browser to display, but if it's a file, I want to begain a download routine.

I got all excited when I saw the URI.IsFile method, but unfortunately that only checks for "file://". What I want to check for is something like http://www.somewhere.com/somefile.zip (or any other file type that would normally be downloaded, including all MS Office files).

Yes, I do realise a webpage is a file, and obviously I could check the extension against a list of known types, but is there an easier way?

Below is the code I'm using at the moment.

Cheers,

WayneStart Free Trial 
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        Dim Exts() As String = {".asp", ".aspx", ".html", ".jsp", ".htm", ".php"}
        Dim ext As String = e.LinkText.Substring(e.LinkText.LastIndexOf("."))
        If Array.IndexOf(Exts, ext) <> -1 Then
            Process.Start(e.LinkText)
        Else
            Dim tmp As String = My.Computer.FileSystem.GetTempFileName & ext
            Dim wc As New Net.WebClient()
            AddHandler wc.DownloadProgressChanged, AddressOf DownloadProgressChanged
            AddHandler wc.DownloadFileCompleted, AddressOf DownloadProgressComplete
            wc.DownloadFileAsync(New Uri(e.LinkText), tmp, tmp)
        End If
[+][-]07.01.2008 at 05:55AM PDT, ID: 21907261

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[+][-]07.01.2008 at 06:10AM PDT, ID: 21907391

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[+][-]07.01.2008 at 09:06AM PDT, ID: 21909043

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[+][-]07.01.2008 at 11:41AM PDT, ID: 21910358

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About this solution

Zones: Microsoft Visual Basic.Net, .NET, .NET Framework 2.0
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Solution Provided By: martin_kongen
Participating Experts: 2
Solution Grade: A
 
 
[+][-]07.01.2008 at 01:50PM PDT, ID: 21911511

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[+][-]07.01.2008 at 02:13PM PDT, ID: 21911699

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[+][-]07.01.2008 at 04:52PM PDT, ID: 21912487

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[+][-]07.02.2008 at 05:40AM PDT, ID: 21915693

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[+][-]07.02.2008 at 09:04PM PDT, ID: 21922608

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[+][-]07.03.2008 at 05:20AM PDT, ID: 21924681

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