public IEnumerable <BaseScore> ReadChildren(BaseScore parent)
{
if (parent != null && parent.IsVirtualFolder() && !parent.IsVirtualResolved())
{
IList <BaseScore> scores = parent.GetVirtualScores(this.Parameters);
parent.SetVirtualResolved();
this.Scores.Items = this.Scores.Items.Concat(scores).ToArray();
return(scores);
}
else
{
string id = parent == null ? "" : parent.Id;
return(this.Scores.Items.Where(score => score.enable && score.Parent == id));
}
}