public virtual void Execute(Object parameter, INextCommandDelegate commandFinishedCallback)
{
if (parameter == null)
{
if (commandFinishedCallback != null)
{
commandFinishedCallback.Invoke(true);
}
return;
}
IList <Object> businessObjects = ExtractBusinessObjects(parameter, true);
IList <Object> directDeletes = new List <Object>();
foreach (Object obj in businessObjects)
{
if (obj is AmbethIDataObject)
{
AmbethIDataObject aido = (AmbethIDataObject)obj;
if (DeleteToBeCreatedDirectly && aido.ToBeCreated)
{
directDeletes.Add(aido);
continue;
}
aido.ToBeDeleted = true;
}
}
if (commandFinishedCallback == null)
{
ChangeHelper.RevertChanges(directDeletes);
return;
}
RevertChangesFinishedCallback revertChangesFinishedCallback = null;
if (commandFinishedCallback != null)
{
revertChangesFinishedCallback = new RevertChangesFinishedCallback(delegate(bool success)
{
commandFinishedCallback.Invoke(success);
});
}
ChangeHelper.RevertChanges(directDeletes, revertChangesFinishedCallback);
}
public override Style SelectStyle(object item, DependencyObject container)
{
if (!(item is AmbethIDataObject))
{
return(UnchangedStyle);
}
AmbethIDataObject aido = (AmbethIDataObject)item;
if (aido.ToBeDeleted)
{
return(ToBeDeletedStyle);
}
else if (aido.ToBeCreated)
{
return(ToBeCreatedStyle);
}
else if (aido.ToBeUpdated)
{
return(ToBeUpdatedStyle);
}
return(UnchangedStyle);
}
protected virtual bool CanExecuteIntern(Object parameter, bool extractAlsoUnchanged = false)
{
if (parameter == null)
{
return(false);
}
else if (parameter is INotPersistedDataContainer)
{
INotPersistedDataContainer container = (INotPersistedDataContainer)parameter;
return(container.HasNotPersisted());
}
else if (parameter is AmbethIDataObject)
{
if (extractAlsoUnchanged)
{
return(true);
}
AmbethIDataObject aio = (AmbethIDataObject)parameter;
return(aio.HasPendingChanges);
}
else if (parameter is IModelContainerRegistry)
{
IList <Object> modelContainers = ((IModelContainerRegistry)parameter).GetModelContainers();
foreach (Object modelContainer in modelContainers)
{
if (CanExecuteIntern(modelContainer, extractAlsoUnchanged))
{
return(true);
}
}
return(false);
}
else if (parameter is IModelMultiContainer <INotPersistedDataContainer> )
{
IModelMultiContainer <INotPersistedDataContainer> mmc = (IModelMultiContainer <INotPersistedDataContainer>)parameter;
foreach (INotPersistedDataContainer npdc in mmc.Values)
{
if (CanExecuteIntern(npdc, extractAlsoUnchanged))
{
return(true);
}
}
return(false);
}
else if (parameter is IModelMultiContainer)
{
IEnumerable multiData = ((IModelMultiContainer)parameter).ValuesData;
foreach (Object data in multiData)
{
if (CanExecuteIntern(data, extractAlsoUnchanged))
{
return(true);
}
}
return(false);
}
else if (parameter is IModelSingleContainer)
{
Object data = ((IModelSingleContainer)parameter).ValueData;
return(CanExecuteIntern(data, extractAlsoUnchanged));
}
return(parameter != null);
}
