Hi , i need to create a tool in wpf that when a dot operator is typed in, it brings up a list of options, when you type you have the list being filterd through. for example, if i type in letter "c", every item in the list bound to the control with a "c" in it will populate the list and as i type in more letters, the list filters more, if i backspace then the list is filtered less and there are more options. Im not sure if that makes enough sense. Im basically talking about an intellisense feature like the likes you will find in Visual Studio IDE? But i have been asked to make use of ICsharp. avalonedit and i dont have a clue about how to do this. Can someone please assist. Thanks