WebClient does not support concurrent I/O operations

Question

How can I get this error from with in the DownloadStringCompleted Event? Doesn\'t that mean, it\'s finished? Is there another event I can fire this from?

I get this

Answer 1

The solution, I found is to use multiple WebClient objects, so to modify your pseudocode example; try

var client = new WebClient("URL 1");
client.CompletedEvent += CompletedEvent;
client.downloadasync();

void CompletedEvent(){
Dosomestuff;
var client2 = new WebClient();
client2.downloadasync(); 
}