public static IEnumerable <TreeIter> Children(this TreeModel model, TreeIter parent)
{
List <TreeIter> children = new List <TreeIter>();
if (parent.Equals(TreeIter.Zero))
{
for (int i = 0; i < model.IterNChildren(); i++)
{
TreeIter iter;
if (model.IterNthChild(out iter, i))
{
children.Add(iter);
children.AddRange(model.Children(iter));
}
}
}
else
{
for (int i = 0; i < model.IterNChildren(parent); i++)
{
TreeIter iter;
if (model.IterNthChild(out iter, parent, i))
{
children.Add(iter);
children.AddRange(model.Children(iter));
}
}
}
return(children);
}