Binding only part of a label

Question

How would one achieve mixing bound values with constant text in a WPF bound control?

For example, say I have a form displaying orders, and I want a label that displa

Answer 1

I found another one approach. @Inferis's solution doesn't work for me and @LPCRoy's isn't elegant for me:

It's my favourite at this moment, it's seems flexible and condensed.