Keyboard focus vs logical focus in WPF

Question

What is the difference by Keyboard focus and logical focus in WPF? and how WPF focus is different from the focus in winform ?

Answer 1

see Focus Overview

Answer 2

I found a good series of blog posts on WPF focus.

http://www.julmar.com/blog/mark/2008/09/02/Part1ItsBasicallyFocus.aspx

http://www.julmar.com/blog/mark/2008/09/04/Part2ChangingWPFFocusInCode.aspx

http://www.julmar.com/blog/mark/2008/09/12/Part3ShiftingFocusToTheFirstAvailableElementInWPF.aspx

They are all good to read, but the 1st part specifically deals with logical vs keyboard focus. The 3rd part shows a good way to set focus to a UI element in a UserControl.