添加项目文件。

Dragablz/DragablzDemo/TreeNode.cs

@@ -0,0 +1,16 @@
+using System.Collections.ObjectModel;
+
+namespace DragablzDemo
+{
+    public class TreeNode
+    {
+        private readonly ObservableCollection<TreeNode> _children = new ObservableCollection<TreeNode>();
+
+        public object Content { get; set; }
+
+        public ObservableCollection<TreeNode> Children
+        {
+            get { return _children; }
+        }
+    }
+}