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silverlightprismmef

MEF/PRISM Silverlight

I am new to MEF/Prism and Silverlight and I am not sure how to dynamically load modules into a ItemsControl. I basically want to be able to swap out dynamically loaded modules into the same region container. How can I do this using MEF/PRISM?

Solution

  • A region to host several controls must be of type ItemsControl:

    <ItemsControl 
    x:Name="MainToolbar" 
    cal:RegionManager.RegionName="{x:Static inf:RegionNames.MainToolBarRegion}">
</ItemsControl>

    Views can be added and removed by code:

    //add view if not already present
IRegion region = this._regionManager.Regions["RegionName"];

object view = region.GetView( "ViewName" );
if ( view == null )
{
    var view = _container.ResolveSessionRelatedView<IMyView>( );
    region.Add( view, "ViewName");
}

//remove
IRegion region = this._regionManager.Regions["RegionName"];

object view = region.GetView( "ViewName" );
if ( view != null )
{
    region.Remove( view );
}

    Using this code you could also add the views by code besides using the Prism built-in navigation functionality.