internal static void CreateRoot(TreeListViewModel tree)
{
var root = new TreeNode(tree)
{
IsExpanded = true
};
root.Children.Clear();
}
internal TreeNode(TreeListViewModel tree, object tag)
{
if (tree == null)
{
throw new ArgumentNullException("tree");
}
_tree = tree;
_children = new NodeCollection(this);
_nodes = new ReadOnlyCollection <TreeNode>(_children);
_value = tag;
}
private TreeNode(TreeListViewModel tree)
: this(tree, null)
{
_isRootNode = true;
}