How To Create A Playlist With Timeline Markers And XAML Content
Starting in Blend, with a Silverlight application that already has the SMFPlayer embedded, select the SMFPlayer and find the Playlist property under Common Properties.
Click Playlist and “Add another item”. Configure this PlaylistItem to for some media by setting DeliveryMethod and MediaSource.
On the Playlist item, find and click the button next to the TimelineMarkers property, then select “Add another item”.
Configure the Begin and End properties to be the points within the media where you’d like this Timeline Marker to show up.
Click the “Ok” buttons to exit the dialog boxes and save changes. Open the XAML view and notice that the XAML for our Timeline Marker has been added to the Playlist Item.
Modify the TimelineMediaMarker XAML to set the make the content a blue rectangle.
Run the application and verify that the TimelineMarker is visible on the Timeline.