自定义TreeView，在树节点旁添加按钮。

[{"title":"（ 24 个子文件 26KB ） 自定义TreeView，在树节点旁添加按钮。","children":[{"title":"WPF_TreeView","children":[{"title":"WPF_TreeView.csproj <span style='color:#111;'> 4.39KB </span>","children":null,"spread":false},{"title":"Resource1.Designer.cs <span style='color:#111;'> 3.50KB </span>","children":null,"spread":false},{"title":"WPF_TreeView.sln <span style='color:#111;'> 990B </span>","children":null,"spread":false},{"title":"open1[19x18x8BPP].png <span style='color:#111;'> 393B </span>","children":null,"spread":false},{"title":"WPF_TreeView.v11.suo <span style='color:#111;'> 48.50KB </span>","children":null,"spread":false},{"title":"Form1.cs <span style='color:#111;'> 1.83KB </span>","children":null,"spread":false},{"title":"Program.cs <span style='color:#111;'> 524B </span>","children":null,"spread":false},{"title":"Form1.resx <span style='color:#111;'> 5.68KB </span>","children":null,"spread":false},{"title":"NewFile3_16X16.png <span style='color:#111;'> 423B </span>","children":null,"spread":false},{"title":"NewFile1_16X16.png <span style='color:#111;'> 383B </span>","children":null,"spread":false},{"title":"Resource1.resx <span style='color:#111;'> 6.29KB </span>","children":null,"spread":false},{"title":"Properties","children":[{"title":"Settings.settings <span style='color:#111;'> 249B </span>","children":null,"spread":false},{"title":"Resources.Designer.cs <span style='color:#111;'> 2.81KB </span>","children":null,"spread":false},{"title":"AssemblyInfo.cs <span style='color:#111;'> 1.33KB </span>","children":null,"spread":false},{"title":"Settings.Designer.cs <span style='color:#111;'> 1.07KB </span>","children":null,"spread":false},{"title":"Resources.resx <span style='color:#111;'> 5.48KB </span>","children":null,"spread":false}],"spread":true},{"title":"WpfTreeNode.cs <span style='color:#111;'> 2.48KB </span>","children":null,"spread":false},{"title":"NewFile2_16X16.png <span style='color:#111;'> 314B </span>","children":null,"spread":false},{"title":"open2_[19x18x8BPP].png <span style='color:#111;'> 390B </span>","children":null,"spread":false},{"title":"Form1.Designer.cs <span style='color:#111;'> 2.22KB </span>","children":null,"spread":false},{"title":"App.config <span style='color:#111;'> 189B </span>","children":null,"spread":false},{"title":"open3[16x16x8BPP].png <span style='color:#111;'> 330B </span>","children":null,"spread":false},{"title":"WpfTreeView.cs <span style='color:#111;'> 4.85KB </span>","children":null,"spread":false},{"title":"utility.cs <span style='color:#111;'> 1.38KB </span>","children":null,"spread":false}],"spread":false}],"spread":true}]