protected override void ModifyValue(PropertyReferenceProperty property, object valueToSet, Modification modification, int index)
{
if (this.ViewModel == null)
{
return;
}
string description = string.Format((IFormatProvider)CultureInfo.CurrentCulture, StringTable.PropertyChangeUndoDescription, new object[1]
{
(object)((PropertyEntry)property).get_PropertyName()
});
if (!this.ViewModel.DefaultView.Document.IsEditable)
{
return;
}
using (SceneEditTransaction editTransaction = this.ViewModel.CreateEditTransaction(description, false, SceneEditTransactionType.NestedInAutoClosing))
{
try
{
foreach (SceneNode sceneNode1 in this.Objects)
{
PropertyReference propertyReference1 = SceneNodeObjectSet.FilterProperty(sceneNode1, property.Reference);
if (propertyReference1 != null)
{
SceneNode sceneNode2 = sceneNode1;
if (this.ShouldAllowAnimation)
{
SceneNode ancestor = (SceneNode)null;
PropertyReference propertyReference2 = propertyReference1;
if (this.FindAncestor(sceneNode1, out ancestor, ref propertyReference2, new Predicate <SceneNode>(SceneNodeObjectSetBase.IsAnimationParent)))
{
sceneNode2 = ancestor;
propertyReference1 = propertyReference2;
}
}
using (SceneNode.DisableEnsureTransform(PlatformTypes.TransformGroup.IsAssignableFrom((ITypeId)propertyReference1.LastStep.DeclaringType)))
{
if (modification == Modification.InsertValue)
{
sceneNode2.InsertValue(propertyReference1, index, valueToSet);
}
else if (modification == Modification.ClearValue)
{
this.ClearAnimations(sceneNode2, propertyReference1);
sceneNode2.ClearValue(propertyReference1);
}
else if (modification == Modification.RemoveValue)
{
SceneElement element = sceneNode2.GetLocalValueAsSceneNode(propertyReference1).GetChildren()[index] as SceneElement;
if (element != null)
{
element.ViewModel.AnimationEditor.DeleteAllAnimationsInSubtree(element);
}
sceneNode2.RemoveValueAt(propertyReference1, index);
}
else if (modification == Modification.SetValue)
{
this.ClearAnimations(sceneNode2, propertyReference1);
using (LayoutRoundingHelper.IsUseLayoutRoundingProperty(sceneNode2, (IProperty)propertyReference1.LastStep) ? sceneNode2.ViewModel.ForceDefaultSetValue() : (IDisposable)null)
sceneNode2.SetValue(propertyReference1, valueToSet);
}
LayoutRoundingHelper.ExplicitlyChangeLayoutRounding(sceneNode2, propertyReference1);
}
}
}
editTransaction.Commit();
}
catch (Exception ex)
{
if (editTransaction != null)
{
editTransaction.Cancel();
}
int num = (int)this.DesignerContext.MessageDisplayService.ShowMessage(new MessageBoxArgs()
{
Message = StringTable.InvalidPropertyValueErrorNoException,
Button = MessageBoxButton.OK,
Image = MessageBoxImage.Hand
});
}
}
this.TransactionContext.UpdateTransaction();
}
