Is it possible to have nested regions in a Composite WPF application? I want modules to be able to inject new menus, and also be able to inject menu items into an existing menu.
Using the following code the RegionManager
throws an exception:
The region manager does not contain the
MainFileMenuRegion
region
<Menu cal:RegionManager.RegionName="MainMenuRegion">
<MenuItem cal:RegionManager.RegionName="MainFileMenuRegion" Header="_File" />
</Menu>
One workaround I've come up with is to simply use two Menu
s arranged with a Grid
. The first one has all my standard menus and allows me to inject into each one individually. The second is empty and allows me to inject new top-level menus.