public static void QuickCleanup(this IGraphModel self)
{
var toRemove = self.EdgeModels.Where(e => e?.ToPort == null || e.FromPort == null).Cast <IGraphElementModel>()
.Concat(self.NodeModels.Where(m => m.Destroyed))
.ToList();
self.DeleteElements(toRemove);
}
public static void Repair(this IGraphModel self)
{
var toRemove = self.NodeModels.Where(n => n == null).Cast <IGraphElementModel>()
.Concat(self.StickyNoteModels.Where(s => s == null))
.Concat(self.PlacematModels.Where(p => p == null))
.Concat(self.EdgeModels.Where(e => e?.ToPort == null || e.FromPort == null))
.ToList();
self.DeleteElements(toRemove);
}