38 lines
960 B
C#
38 lines
960 B
C#
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using System;
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using System.Windows.Controls;
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using System.Windows.Media;
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namespace WPFDark.Internals
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{
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internal static class TreeViewItemExtensions
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{
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internal static int GetDepth(this TreeViewItem item)
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{
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try
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{
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TreeViewItem? parent;
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while ((parent = GetParent(item)) != null)
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{
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return GetDepth(parent) + 1;
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}
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}
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catch
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{
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// ignored
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}
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return 0;
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}
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private static TreeViewItem? GetParent(TreeViewItem item)
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{
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var parent = VisualTreeHelper.GetParent(item);
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while (!(parent is TreeViewItem || parent is TreeView))
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{
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parent = VisualTreeHelper.GetParent(parent ?? throw new InvalidOperationException());
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}
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return parent as TreeViewItem;
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}
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}
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}
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