Gets or sets a value that indicates whether the element can receive focus.
Assembly: PresentationCore (in PresentationCore.dll)
Only the focused element receives keyboard input.
is the Microsoft .NET property accessor for what is in reality a dependency property. This particular dependency property quite frequently has its apparent "default" value set differently in derived element classes. This commonly occurs in one of two ways:
The dependency property is inherited by a particular derived class, but that derived class overrides the metadata of the dependency property and changes the property default value.
Available since 3.0