/// <summary>
/// queryTreeViewのTreeViewItemの親をたどる
/// </summary>
/// <param name="item">検索元TreeViewItem</param>
private string[] QueryTreeViewItemParent(TreeViewItem item)
{
var itemList = new List<TreeViewItem>();
var hitList = new List<string>();
itemList.Add(SearchTreeViewItem);
for (int i = 0; i < itemList.Count; i++)
{
foreach (TreeViewItem tv in itemList[i].Items)
{
itemList.Add(tv);
if (item.IsDescendantOf(tv))
{
hitList.Add((string)tv.Header);
}
}
}
return hitList.ToArray();
}