TabPage is a user interface class derived from the WPF UserControl. It contains additional properties and methods that allow it to be installed as a new tab page in the WL8 Preferences tool. A custom WL8 Extension (WL8ExtensionBase) can override its PreferencePages property to return instances that are added to the Preferences tool tab control.
Perform any cleanup required for your tab page when it is closed.
Override this property to return the help page that should be opened when the user open Help from this tab page. By default, this property returns TabText.
Perform any initialization required by your tab page when it is first opened.
Make any required changes in your tab page's user interface based on whether WL8 Expert Mode is turned on or not.
Override this property to return the text that should appear on the Preferences tool's tab for this page.