How to make clientdownloadasync download a new file when it has changed, instead of the cached

Asked Mar 28 '16 at 13:31

Active Mar 28 '16 at 13:37

Viewed 39 times

So I am writing an AutoUpdate tool for my program. So far all has worked good except when I update the file on my site, it still downloads the old version for a while. How can I make it always download the new file instead of (I guess its a cached version). Do I need to change something on my site, or can I do it within vb?

Here is the code for downloading:

Dim client As WebClient = New WebClient
AddHandler client.DownloadProgressChanged, AddressOf client_ProgressChanged
AddHandler client.DownloadFileCompleted, AddressOf client_DownloadCompleted
client.DownloadFileAsync(New Uri("http://www.redpoisonjb.com/timertracker.exe"), "Timer Tracker.exe")

edited Mar 28 '16 at 13:37

Niranjan Singh

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asked Mar 28 '16 at 13:31

user3051640

Strange as it should be replaced ... The old file should be replaced with the new one... – Trevor Mar 28 '16 at 13:37
@Codexer : Yeah, caching shouldn't apply to files... – Visual Vincent Mar 28 '16 at 13:41
1

Have you tried a cachebuster? You could add `"?" & DateTime.Now.Ticks.ToString()` to the URL. – Andrew Morton Mar 28 '16 at 13:41
1

Try checking this question and answer: http://stackoverflow.com/questions/3812089/c-sharp-webclient-disable-cache – Visual Vincent Mar 28 '16 at 13:43
@AndrewMorton Trying that now, thanks! – user3051640 Mar 28 '16 at 14:06

How to make clientdownloadasync download a new file when it has changed, instead of the cached

0 Answers0