private static void GetExpandedRowsRecursive(TreeView treeView, TreeViewItem item, IList <TreeViewItem> expandedRows)
{
expandedRows.Add(item);
if (item.hasChildren && treeView.IsExpanded(item.id))
{
foreach (TreeViewItem current in item.children)
{
TreeViewUtility.GetExpandedRowsRecursive(treeView, current, expandedRows);
}
}
}
public static void BuildRowsUsingExpandedState(IList <TreeViewItem> rows, TreeViewItem root, TreeView treeView)
{
if (treeView == null)
{
throw new ArgumentNullException("treeView", "treeView is null");
}
if (root == null)
{
throw new ArgumentNullException("root", "root is null");
}
if (rows == null)
{
throw new ArgumentNullException("rows", "rows is null");
}
if (root.hasChildren)
{
foreach (TreeViewItem current in root.children)
{
TreeViewUtility.GetExpandedRowsRecursive(treeView, current, rows);
}
}
}
