Implementing a Multi-column dropdown list using C#, ASP.NET

Question

I want to implement a multi column combo box using C#. A sample screen shot of what I'm looking for can be found in THIS LINK.

I have done some search and found a link where he is pretty much doing the same but the author used LightSwitch. I'm not really much aware of LightSwitch. Is there any way to do it simply using C#, ASP.NET?

Can someone suggest a way to implement it?

Thanks a lot.!