Ever tried using DataSource, DataMember and ValueMember properties for your checkedListBox control and you don't see them popup on your IntelliSense? Well, looks like we can't just count on IntelliSense 100%. I saw this post on the MSDN forums and tried it out for myself. Surprisingly, IntelliSense does tell me it's not supported but it just works. I guess it's better off researching for more resources. Don't get me wrong - I love the IntelliSense feature as it makes me more productive (it's one of the reasons I switched from being a VB to a C# part-time developer). But it makes you wonder why the product team did not include class properties like these in the tool