WPF. How to make a field for entering tags with autocomplete?

Question

WPF

Where can I find a ready-made library or solution for organizing the input of tags with autocomplete?
Just like here on the toaster when you create a question and enter some tags. (picture per line is optional)

Answer 1

You can take this experience as a basis blog.pixelingene.com/2010/10/tokenizing-control-co...
You can already screw the drop-out yourself.