How can I format a decimal bound to TextBox without angering my users?

Question

I\'m trying to display a formatted decimal in a TextBox using data binding in WPF.

Goals

Goal 1: When setting a decimal property in code, display 2 decimal p

Answer 1

Try the WPF Extended Tookit Masked TextBox to implement an Input Mask: http://wpftoolkit.codeplex.com/wikipage?title=MaskedTextBox

Example: