NSurl connection delegates are not called
<p>This is my code for getting image from url but the delegate methods are not getting invoked.why?</p>

<pre><code>NSString *urlLink = [NSString stringWithString:appRecord.imageURLString];   
self.urlString=urlLink;
NSURL *url=[NSURL URLWithString:urlLink];
NSMutableURLRequest *request=[[NSMutableURLRequest alloc] initWithURL:url];
NSURLConnection *conn=[[NSURLConnection alloc] initWithRequest:request delegate:self];
self.imageConnection=conn;
[conn release];
</code></pre>
