public override bool Apply()
{
ModelItem oldValue = this.Dictionary[this.Key];
if ((oldValue == null && this.NewValue == null) ||
(oldValue != null && this.NewValue != null && oldValue.GetCurrentValue().Equals(this.NewValue.GetCurrentValue())))
{
return(false);
}
((ModelItemDictionaryImpl)this.Dictionary).EditCore(this.Key, this.NewValue);
ModelChangeInfo changeInfo = ModelChangeInfoImpl.CreateDictionaryValueChanged(this.Dictionary, this.Key, this.OldValue, this.NewValue);
if (this.OldValue != null)
{
this.ModelTreeManager.modelService.OnModelItemRemoved(this.OldValue, changeInfo);
changeInfo = null;
}
if (this.NewValue != null)
{
this.ModelTreeManager.modelService.OnModelItemAdded(this.NewValue, changeInfo);
}
return(true);
}
public override bool Apply()
{
Fx.Assert(this.ModelTreeManager != null, "Modeltreemanager cannot be null");
Fx.Assert(this.Owner != null, "Owner modelitem cannot be null");
Fx.Assert(!String.IsNullOrEmpty(this.PropertyName), " property name cannot be null or emptry");
ModelPropertyImpl dataModelProperty = (ModelPropertyImpl)this.Owner.Properties[this.PropertyName];
ModelItem oldValue = dataModelProperty.Value;
if ((oldValue == null && this.NewValue == null) ||
(oldValue != null && this.NewValue != null && oldValue.GetCurrentValue().Equals(this.NewValue.GetCurrentValue())))
{
return(false);
}
dataModelProperty.SetValueCore(this.NewValue);
ModelChangeInfo changeInfo = ModelChangeInfoImpl.CreatePropertyChanged(this.Owner, this.PropertyName, this.OldValue, this.NewValue);
this.ModelTreeManager.NotifyPropertyChange(dataModelProperty, changeInfo);
return(true);
}
private void ApplyInsert()
{
Fx.Assert(this.ModelTreeManager != null, "ModelTreeManager cannot be null.");
Fx.Assert(this.Collection != null, "this.Collection cannot be null.");
if (this.Index >= 0)
{
((ModelItemCollectionImpl)this.Collection).InsertCore(this.Index, this.Item);
}
else
{
Fx.Assert(this.Index == -1, "-1 must be used to indicate Add(item)");
this.Index = this.Collection.Count;
((ModelItemCollectionImpl)this.Collection).AddCore(this.Item);
}
ModelChangeInfo changeInfo = ModelChangeInfoImpl.CreateCollectionItemAdded(this.Collection, this.Item);
this.ModelTreeManager.NotifyCollectionInsert(this.Item, changeInfo);
}
private void ApplyDelete()
{
Fx.Assert(this.ModelTreeManager != null, "ModelTreeManager cannot be null.");
Fx.Assert(this.Collection != null, "this.Collection cannot be null.");
if (this.Index >= 0)
{
((ModelItemCollectionImpl)this.Collection).RemoveAtCore(this.Index);
}
else
{
Fx.Assert(this.Index == -1, "-1 must be used to indicate Remove(item)");
this.Index = this.Collection.IndexOf(this.Item);
((ModelItemCollectionImpl)this.Collection).RemoveCore(this.Item);
}
ModelChangeInfo changeInfo = ModelChangeInfoImpl.CreateCollectionItemRemoved(this.Collection, this.Item);
this.ModelTreeManager.NotifyCollectionRemove(this.Item, changeInfo);
}
private void ApplyInsert()
{
((ModelItemDictionaryImpl)this.Dictionary).AddCore(this.Key, this.Value);
ModelChangeInfo changeInfo = ModelChangeInfoImpl.CreateDictionaryKeyValueAdded(this.Dictionary, this.Key, this.Value);
if (this.Key != null)
{
this.ModelTreeManager.modelService.OnModelItemAdded(this.Key, changeInfo);
changeInfo = null;
}
if (this.Value != null)
{
this.ModelTreeManager.modelService.OnModelItemAdded(this.Value, changeInfo);
changeInfo = null;
}
if (changeInfo != null)
{
this.ModelTreeManager.modelService.EmitModelChangeInfo(changeInfo);
}
}
