Why would I want IsTabStop set to true on a ContentControl?

Question

Given the following:

• setting IsTabStop to false on a ContentControl will not prevent its content from acting as a tab-stop
• setting IsTabStop to true will result in an invisible tab-stop, which does nothing, in your application

I have the following two questions:

1. Why is IsTabStop true by default for the ContentControl
2. Why would I ever want the ControlControl to act as a tab-stop?

Answer 1

The ContentControl gets it's IsTabStop property from Control, so all controls can be tab stops, including ContentControls.

I'm not sure why it is true by default for a ContentControl though, probably just because it defaults to true in Control.

Answer 2

Douglas is correct ContentControl simply inherits the default value of IsTabStop from Control. Also there is no good reason to assume that the value of true is less valid for a ContentControl than it is for Control.

For example, you might have a control that expects its content be something graphical such a set of Shape elements or an Image. However your control may perform certain operations on the content when the user presses specific keys.