private SkillsTreeNode <Skill> CreateAndBind(SkillsTreeNode <Skill> parent, string name, bool isLocked = true)
{
var res = CreateNode(name, isLocked);
BindOneByOne(parent, res);
return(res);
}
private void BindOneByOne(SkillsTreeNode <Skill> parent, SkillsTreeNode <Skill> child)
{
parent.Children.Add(child);
child.Parents.Add(parent);
}