How can I find the state of NumLock, CapsLock or ScrollLock in WPF? If you're writing a WPF application and need to find the state of the Num Lock, Caps Lock, or Scroll Lock keys, you're in luck - there's a method for that.
Using a TextBox and CollectionViewSource to Filter a ListView in WPF At one point, I was asked to code a text field to serve as a filter for a ListView that. WPF provides for more flexibility (including grouping and sorting, but I’m only going to cover filtering).
