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ASP.Net Compare 2 Files But Not Data RRS feed

  • Question

  • Hello,

    I have a ASP.Net application and the client wants me to do this:

    Users can download files(word, excel, pdf, jpg.....) into their own computers.

    Also users can change file on the server by uploading files.

    But when they want to upload files, my application should check if these files are same but not data.

    I mean, if a user downloads a file(he can change this downloaded file, add new lines etc.), only that user can upload that file. Only that user because he is the last one who downloaded the file.

    Can I set any key(like guid) or something else in the file to check if downloaded and the file on the server are same.

    thanks 

    • Moved by Eyal Solnik Monday, September 15, 2014 5:16 PM Irrelevant to C#
    Monday, September 15, 2014 11:45 AM

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