/// <summary>
/// Called whenever a model element is deleted from the store.
/// </summary>
/// <param name="sender">ViewModelStore</param>
/// <param name="args">Event Arguments for notification of the removal of an ModelElement.</param>
private void OnElementDeleted(object sender, ElementDeletedEventArgs args)
{
if (args.ModelElement is DomainModelElement)
{
DomainModelElement modelElement = args.ModelElement as DomainModelElement;
List <Guid> shapes = GraphicalDependencyShapeStore.GetFromStore(modelElement.Id);
if (shapes != null)
{
if (shapes.Count > 0)
{
modelElement.Store.UndoManager.UndoState = UndoState.DisabledNoFlush;
using (Transaction t = modelElement.Store.TransactionManager.BeginTransaction("", true))
{
for (int i = shapes.Count - 1; i >= 0; i--)
{
ShapeElement shape = modelElement.Store.ElementDirectory.FindElement(shapes[i]) as ShapeElement;
if (shape != null)
{
shape.Delete();
}
}
t.Commit();
}
modelElement.Store.UndoManager.UndoState = UndoState.Enabled;
GraphicalDependencyShapeStore.RemoveFromStore(modelElement.Id);
}
}
}
}
/// <summary>
/// Called whenever a model element is beeing deleted.
/// </summary>
/// <param name="e"></param>
public override void ElementDeleting(ElementDeletingEventArgs e)
{
base.ElementDeleting(e);
DomainModelElement modelElement = e.ModelElement as DomainModelElement;
if (modelElement == null)
{
return;
}
List <Guid> shapes = GraphicalDependencyShapeStore.GetFromStore(modelElement.Id);
if (shapes != null)
{
modelElement.Store.UndoManager.UndoState = UndoState.DisabledNoFlush;
using (Transaction t = modelElement.Store.TransactionManager.BeginTransaction("", true))
{
for (int i = shapes.Count - 1; i >= 0; i--)
{
ShapeElement shape = modelElement.Store.ElementDirectory.FindElement(shapes[i]) as ShapeElement;
if (shape != null)
{
shape.Delete();
}
}
t.Commit();
}
modelElement.Store.UndoManager.UndoState = UndoState.Enabled;
}
}
