/// <summary>
/// Merges a <see cref="ModelValueChangeEvent"/> into the current event.
/// </summary>
/// <param name="e"></param>
/// <returns></returns>
protected override bool OnMerge(ModelEvent e)
{
// Ensure the events are for the same reference property
var listChange = (ModelListChangeEvent)e;
if (listChange.Property != Property)
{
return(false);
}
// Highly likely not to be right
var mergeAdded = Added.ToList();
mergeAdded.RemoveAll(i => listChange.Removed.Contains(i));
var mergeRemoved = Removed.ToList();
mergeRemoved.RemoveAll(i => listChange.Added.Contains(i));
mergeAdded = mergeAdded.Union(listChange.Added.Where(i => !Removed.Contains(i))).ToList();
mergeRemoved = mergeRemoved.Union(listChange.Removed.Where(i => !Added.Contains(i))).ToList();
Added = mergeAdded.ToArray();
Removed = mergeRemoved.ToArray();
var mergeAddedIds = AddedIds.ToList();
mergeAddedIds.RemoveAll(i => listChange.RemovedIds.Contains(i));
var mergeRemovedIds = RemovedIds.ToList();
mergeRemovedIds.RemoveAll(i => listChange.AddedIds.Contains(i));
mergeAddedIds = mergeAddedIds.Union(listChange.AddedIds.Where(i => !RemovedIds.Contains(i))).ToList();
mergeRemovedIds = mergeRemovedIds.Union(listChange.RemovedIds.Where(i => !AddedIds.Contains(i))).ToList();
AddedIds = mergeAddedIds.ToArray();
RemovedIds = mergeRemovedIds.ToArray();
return(true);
}