How to use Prism Region in WPF?
Step 1: Install Prism.Core,Prism.DryIoc (You can use any IOC like Prism.Unity),Prism.Wpf. Step 2: Add the prism namespace to MainWindow.xaml like below xmlns:prism="http://prismlibrary.com/" Step 3: Add ContentControl to MainWindow and initilize the RegionName <Grid> <ContentControl prism:RegionManager.RegionName =" MainRegion "/> </Grid> Step 4: Implement IModule class MainModule : IModule { public void OnInitialized (IContainerProvider containerProvider) { var region= containerProvider.Resolve<IRegionManager>(); region.RegisterViewWithRegion(" MainRegion ", typeof( TabView )); // TabView is the view or UserControl which will inject to Region } public void RegisterTypes(IContainerRegistry containerRegistry) { } } Step 5: App class should inherit from PrismAppl