Gets or sets the page's category name. This is a dependency property.
A string value that is a page category name.
Starting with v18.1, it is not necessary to declare pages inside a category. Pages can be added to a Ribbon Control directly. Use the CategoryName property to place this page into a specified contextual category. In this case, the contextual categories must be declared in RibbonControl.Items or RibbonControl.Categories collections.