There is nothing about the WebClient class that prevents you from using
Semaphore in your code. As Nick indicates, you really haven't told us much.
--Peter
"Inside every large program, there is a small program trying to get out."
http://www.eggheadcafe.comhttp://petesbloggerama.blogspot.comhttp://www.blogmetafinder.com
- Show quoted text -
Sorry, I wasn't able to put the code snippet in. I was rushed last
night.
This is somewhat like what my code looks like:
static void Main()
{
Semaphore semaphore = new Semaphore(1, 1);
int i = 0;
foreach (WebClient client in GetNextInt())
{
semaphore.WaitOne();
client.DownloadFileCompleted
+= new AsyncCompletedEventHandler(
delegate(object sender, AsyncCompletedEventArgs e)
{
semaphore.Release();
});
client.DownloadFileAsync(new Uri("http://
www.google.com"), @"C:\temp" + i + ".html");
++i;
}
}
static IEnumerable<WebClient> GetNextInt()
{
for (int i = 0; i != 10; ++i)
{
Thread.Sleep(new Random().Next(1000, 5000));
yield return new WebClient();
}
}
When my code got to the last download, it stopped prematurely. So the
last file in this example always had a file of 0 bytes. Which means my
application is stopping even though there are downloads currently in
progress. I would have thought a thread would have prevented that.
Is there anyway to prevent this?
By the way, I thought my application wasn't working at all last night
because I only had one Web Client.
