Q:

Post values to URL without redirecting

I'm setting up an SMS service where I have to post some values,
like receiver, sender and message to a specific url at provider.
Pretty simple if I just add a button and in the button event I
make a response.redirect("...url and url parameters with values...")
But I don't want the user to be redirected to another page when the 
button is clicked. I have tried to post the url to a new window with
JavaScript. This is okay, but I'm running into a lot of pop-up blocking issues with
the browser...
Is there any recomendations on how to accomplish that, I think it must 
be a pretty common way to post information to payment services and such.
Best regards.

A:

With System.Net.WebClient you can call a website without doing a redirect.
Dim result As String = New System.Net.WebClient().DownloadString("http://...") 

