/// <summary>
/// Gets called when the model element gets deleted
/// </summary>
/// <param name="e">The event data</param>
protected virtual void OnDeleted(UriChangedEventArgs e)
{
foreach (var child in Children.Reverse())
{
var childME = child as ModelElement;
if (childME != null)
{
Uri oldChildUri = null;
if (e.OldUri != null)
{
var uriBuilder = new UriBuilder(e.OldUri);
uriBuilder.Fragment = uriBuilder.Fragment.Substring(1) + '/' + childME.CreateUriWithFragment(null, false, this).OriginalString;
oldChildUri = uriBuilder.Uri;
}
var args = new UriChangedEventArgs(oldChildUri);
childME.OnDeleting(args);
childME.OnDeleted(args);
}
}
Deleted?.Invoke(this, e);
UnsetFlag(ModelElementFlag.Deleting);
}
/// <summary>
/// Deletes the current model element
/// </summary>
public virtual void Delete()
{
if (!IsFlagSet(ModelElementFlag.Deleting))
{
SetFlag(ModelElementFlag.Deleting);
// do not create event args when nobody listens
if (IsFlagSet(ModelElementFlag.RaiseBubbledChanges) || Deleted != null || Deleting != null)
{
Uri originalAbsoluteUri = null;
if (IsFlagSet(ModelElementFlag.RequireUris))
{
originalAbsoluteUri = AbsoluteUri;
}
var e = new UriChangedEventArgs(originalAbsoluteUri);
OnDeleting(e);
OnDeleted(e);
// only bubble deletion for deleted root
OnBubbledChange(BubbledChangeEventArgs.ElementDeleted(this, e));
}
SetParent(null);
}
}
/// <summary>
/// Gets called before the model element gets deleted
/// </summary>
/// <param name="e"></param>
protected virtual void OnDeleting(UriChangedEventArgs e)
{
Deleting?.Invoke(this, e);
}
