Property to return the count of list items?

[Yan Moura]

I would like to know how to get the count of items of the list when the user types in something.

For instances, let's say that the user starts typing the "X" letter but my query doesn't returns any word with "X", so the count of items would be zero.

In this case I could display a warning message like "There is no one possible choice that matches your typing".

Any idea?

[Yan Moura]

I am still searching and I couldn't find so far any server side property that give me this value.

There is at least any client side way to get it with JS?

Thanks!

[Yan Moura]

PS: I am referring to the dropdown list length of the RadAutoCompleteBox. I need to know a way of check if its > 0.