private void buildEntities(Func <IEnumerable <FeatViewEntity> > builder)
{
viewModel.Feats?.ForEach(r => r.PropertyChanged -= onFeatViewEntityPropertyChanged);
viewModel.Feats = new ObservableCollection <FeatViewEntity>(builder());
viewModel.Feats.Traverse().ForEach(r => r.PropertyChanged += onFeatViewEntityPropertyChanged);
FeatViewEntity entity = viewModel.Feats.FirstOrDefault(fe => !fe.IsParentHeader);
if (entity != null)
{
entity.IsSelected = true;
}
}
private void onFeatViewEntityPropertyChanged(object sender, PropertyChangedEventArgs args)
{
if (isSelf)
{
return;
}
if (!(sender is FeatViewEntity entity))
{
return;
}
switch (args.PropertyName)
{
case "IsSelected": {
if (entity.IsSelected)
{
if (entity.IsParentHeader)
{
isSelf = true;
entity.IsSelected = false;
lastSelected.IsSelected = true;
isSelf = false;
entity = lastSelected;
}
viewModel.Selected = entity;
viewModel.Feats.Traverse(fe => true).Where(c => c != entity).ForEach(c => c.IsSelected = false);
}
else
{
lastSelected = entity;
}
break;
}
}
}
