<patrick.roy@tech-nter.com> wrote in message
news:3710ca63-4fa3-4f5b-b204-a25001cf7345@e25g2000prg.googlegroups.com...
> Hi,
>
> I would like to "GetLastWriteTime" of a file that is located on my IIS
> server without having to download it.
>
> My goal is to download the file ONLY if the file is more recent on
> IIS.
>
> He're my code :
>
> localFileName = string.Format(@"{0}{1}\{2}", localSyncPath,
> ApplicationFolder.Help, line);
> url = string.Format("http://{0}/ATMP/{1}/{2}", serverIPAddress,
> IISHelpPath, line);
>
> if (File.GetLastWriteTime(localFileName) < File.GetLastWriteTime(url))
> {
> NetworkUtil.DownloadFile(url, localFileName);
> }
>
> When I run that code, I got an error because the function
> File.GetLastWriteTime(url) does'nt seems to accept url file like
> "http://10.121.128.16/ATMP/Help/1Options.htm".
> The exact error is (in french) : "La valeur n'est pas comprise dans la
> plage attendue."
> Translated in english, it should sounds like "Value is not included in
> planned range"... Sorry for my bad translation :-)
>
> Also, the Stacktrace start by : at
> System.IO.Path.GetFullPathInternal() at
> System.IO.File.GetLastWriteTime() at ...
>
> Thank you.

> There may be some method that you could use to query the Web server
> for the date of that item. In particular, I'm thinking that creating
> an HttpWebRequest instance and setting the IfModifiedSince property
> to the date you care about and arranging the rest of the request to
> get the target item might do what you need. You'd have to handle
> treating the response to your request (it might contain a file or
> nothing, depending on the date), and writing the file.