(HELP) i need a button that downloads something from a web adress

This is a discussion on (HELP) i need a button that downloads something from a web adress within the C# Programming forums, part of the General Programming Boards category; ok i have this code here it is Code: void DownloadFileFromURL(string URL, string SaveFileName) { Uri u = new Uri(URL); ...

  1. #1
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    Arrow (HELP) i need a button that downloads something from a web adress

    ok i have this code

    here it is

    Code:
    void DownloadFileFromURL(string URL, string SaveFileName)
            {
                Uri u = new Uri(URL);
                Stream s = ((HttpWebRequest)HttpWebRequest.Create(u)).GetResponse().GetResponseStream();
                FileStream f = File.Create(SaveFileName);
                byte[] r = new byte[4096];
                while (true)
                {
                    int num = s.Read(r, 0, 4096);
                    if (num < 1)
                        break;
                    f.Write(r, 0, num);
                }
            }
    when i debug and i click the button it takes me to the code and it highlights this part of the code

    Uri u = new Uri(URL);

    please help me get this to work

  2. #2
    Registered User C_ntua's Avatar
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    What is the error message?

  3. #3
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    umm hold on a sec

  4. #4
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    invalid URI

  5. #5
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    Code:
            void DownloadFileFromURL(String URL, String SaveFileName)
            {
                WebRequest request = WebRequest.Create(URL.StartsWith("http://") ? URL : ("http://" + URL));
                WebResponse response = request.GetResponse();
                Stream stream = response.GetResponseStream();
                FileStream file = new FileStream(SaveFileName, FileMode.Create, FileAccess.Write);
    
                while (true)
                {
                    byte[] buffer = new byte[4096];
                    int size = stream.Read(buffer, 0, 4096);
    
                    if (size > 0)
                        file.Write(buffer, 0, size);
                    else
                        break;
                }
    
                file.Close();
                stream.Close();
                response.Close();
            }

  6. #6
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    it still does it

  7. #7
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    What URL are you using? It worked when I tested it with www.google.com
    Last edited by theoobe; 09-12-2009 at 12:32 PM.

  8. #8
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    its for my server here is the adress
    68.214.84.27/string.wz

  9. #9
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    here is the code in the button
    that downloads it

    i need it to work with this

    progressBar1.Value += 10
    DownloadFileFromURL("68.214.84.27/string.wz", "C:\\program files\\globalc\\cryptonyte");

  10. #10
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    The code I posted earlier, plus...

    Code:
    DownloadFileFromURL("http://68.214.84.27/string.wz", "string.wz");
    ...seems to work for me. :-/

  11. #11
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    ummm let me try again

  12. #12
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    it comes up with an error that says access to the path has been denided

    well the path is true but it still says that

  13. #13
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    You can only write/modify files in the program files folder, if you have UAC (User Account Control) disabled. I dare say that is why you are denied access.

    One area of your hard disk which will still have write/modify access is the Application Data folder. You can locate the path to this folder using

    Code:
    Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)
    It is good practice to use this area to store your application's data files.

  14. #14
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    please tell me how to get it to work

  15. #15
    Registered User C_ntua's Avatar
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    theoobe is saying that you cannot save the file at
    Code:
    C:\\program files\\globalc\\cryptonyte
    . So you need to choose a different location

    The
    Code:
    Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)
    returns a string with the Application Data folder, in which you can write.

    So write in your Application Data folder and not in Program Files.

    Don't know how you can change permissions and be able to write in Program Files

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