Hi, Christian.

>I am thinking to create a textbox where the user can type in a value, and if it is found in a support table, a list should pop up with the nearest matches, just like the intellisense functionality in VFP.
>
>The user should be able to continue typing, or to select a match from the list. Is there a good way of doing this, or are there any examples how to show the list and do the selection?

This is known as "Quicken-style" combos, as this was one of the first to implement it. Take a look at:

Quicken Style Quick Fill File #9353

Also, dropdown combos have a simmilar feature, and are native controls.

Hope this helps,