public virtual async Task RemoveEntityAsync(IEntity entity)
{
_entities.Remove(entity);
if (EntitiesChanged != null)
{
await EntitiesChanged.Invoke(this, Entities);
}
}
public void RemoveEntity(Entity entity)
{
entities.Remove(entity);
entity.EntitySet = null;
EntitiesChanged.RaiseDeletionEventEx(this, entity);
RaisePropertyChanged("Entities");
}
public virtual void AddEntity(Entity entity)
{
if (entities.Contains(entity))
{
return;
}
entities.Add(entity);
entity.EntitySet = this;
RaisePropertyChanged("Entities");
EntitiesChanged.RaiseAdditionEventEx(this, entity);
}
void OnEntitiesChanged(object sender, CollectionChangeEvent <Entity> e)
{
EntitiesChanged.RaiseEvent(entities, e);
if (e.ChangeType == CollectionChangeAction.Addition)
{
SetupEventSubscriptions(e.ChangedObject);
}
else if (e.ChangeType == CollectionChangeAction.Deletion)
{
RemoveEventSubscriptions(e.ChangedObject);
}
}
public virtual void DeleteEntity(Entity entity)
{
foreach (var reference in entity.DirectedReferences)
{
reference.ToEntity.RemoveReference(reference.Reference);
RemoveReference(reference.Reference);
}
entity.ClearReferences();
if (MappingSet != null)
{
MappingSet.DeleteEntity(entity);
}
if (entity.Parent != null)
{
entity.Parent.RemoveChild(entity);
}
for (int childCounter = entity.Children.Count - 1; childCounter >= 0; childCounter--)
{
Entity childEntity = entity.Children[childCounter];
entity.RemoveChild(childEntity);
// Add the ID property back to the child entity
for (int i = childEntity.Key.Properties.ToList().Count - 1; i >= 0; i--)
{
if (childEntity.Properties.Count(p => p == childEntity.Key.Properties.ElementAt(i)) == 0)
{
childEntity.AddProperty(childEntity.Key.Properties.ElementAt(i));
}
}
// Add any hidden properties back to the child
foreach (var hiddenProperty in childEntity.PropertiesHiddenByAbstractParent)
{
hiddenProperty.IsHiddenByAbstractParent = false;
}
}
RemoveEntity(entity);
EntitiesChanged.RaiseDeletionEventEx(this, entity);
RaisePropertyChanged("Entities");
}
protected void InvokeEntitiesChanged(IEnumerable <T> entities)
{
EntitiesChanged?.Invoke(entities);
}
public virtual void OnEntitiesChanged(DependencyPropertyChangedEventArgs e)
{
EntitiesChanged?.Invoke(this, isListUserInteraction, e.OldValue, e.NewValue);
}
/// <summary>
/// Causes flushing entites to file and rising EntitiesChanged event.
/// </summary>
public void OnEntitesChanged()
{
EntitiesChanged?.Invoke();
}