How to make a multiple asynchronous calls using .NET?

The scenario is that an ASP.NET webforms page will call a web service in an async manner to make about 8 web service calls to various provid开发者_开发问答ers for data. I would like to run them in parallel to speed things up. I also need to wait for them all to come back before moving on.

What is the best way to achieve this? Please provide some code examples (I'm from VB).

Thanks!!!

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For ASP.Net MVC...

Use an AsyncController

• Using an Asynchronous Controller in ASP.NET MVC (with examples)

For good ole webforms...

If you are using .Net 4 you might consider the Task Parallel Library. Otherwise you may need to just use the Async Pattern

• Task Examples
• Async Pattern to Tasks