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Thread: searching a string [RESOLVED]

  1. Jan 7th, 2003, 10:11 AM #1
    EyeTalion
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    searching a string [RESOLVED]

    I'm using <input type=file> to let a user select a file for upload. I only want to let them select a .pdf document. I'm not sure how filter out the file dialog using a <html> control, so I was thinking about doing a string search on the file chosen. Is there a way to check if it's a .pdf?
    Last edited by EyeTalion; Jan 9th, 2003 at 03:18 AM.
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  2. Jan 8th, 2003, 06:17 PM #2
    Dmyze
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    Code:
    sExt = System.IO.Path.GetExtension("test.pdf")

if sExt = "pdf" then...
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  3. Jan 8th, 2003, 11:00 PM #3
    Redth
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    I suppose that will work, however with the file uploads in asp.net, there's an even better way to test file type/extension....

    lets say your file input is called myFile:

    <input type="file" Runat="server" id="myFile">

    Use:
    VB Code:
    1. myFile.PostedFile.ContentType

    i'm not sure what it will return for a PDF, so make a test page that has a file input and upload a pdf file then just response.write(myFile.PostedFile.ContentType)... that should return a string of the content type... this should look at the file itself, and it will make sure that the file is the proper type, not just the extension...
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  4. Jan 9th, 2003, 03:18 AM #4
    EyeTalion
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    hey guys I used:

    string strFilename = fileInput.PostedFile.FileName;

    if(strFileName.EndsWith(".pdf")
    {
    }



    works fine....thanks for the input.
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