Intellisense supported TextBox in WPf

I started with wpf 4.0. I have a textBox where i shall enter linq expressions. So i want to enable intellisense support in the textEditor. All i do now is bringing a popUp which has the list of items. Do i have anyother way to do this in WPF.

Thanks.

No, none of the built-in controls provide Intellisense functionality. It's a feature provided by code editors, and I doubt Microsoft intends for you to re-implement Visual Studio.

You'll have to write it yourself. See here for a sample: Intellisense-like Method Selection Pop-up Window

A commercial control package is another option. For example: Actipro's WPF SyntaxEditor