自定义的C#下拉树形控件

D:\Documents\SharpDevelop Projects\ComboBoxTree\ComboBoxTree\obj\Debug\ResolveAssemblyReference.cache D:\Documents\SharpDevelop Projects\ComboBoxTree\ComboBoxTree\bin\Debug\ComboBoxTree.exe D:\Documents\SharpDevelop Projects\ComboBoxTree\ComboBoxTree\bin\Debug\ComboBoxTree.pdb D:\Documents\SharpDevelop Projects\ComboBoxTree\ComboBoxTree\obj\Debug\ComboBoxTree.exe D:\Documents\SharpDevelop Projects\ComboBoxTree\ComboBoxTree\obj\Debug\ComboBoxTree.pdb D:\Documents\SharpDevelop Projects\ComboBoxTree\ComboBoxTree\obj\Debug\ComboBoxTree.MainForm.resources D:\Documents\SharpDevelop Projects\ComboBoxTree\ComboBoxTree\obj\Debug\ComboBoxTree.csproj.GenerateResource.Cache C:\Documents and Settings\yapian\桌面\ComboBoxTree\ComboBoxTree\bin\Debug\ComboBoxTree.exe C:\Documents and Settings\yapian\桌面\ComboBoxTree\ComboBoxTree\bin\Debug\ComboBoxTree.pdb C:\Documents and Settings\yapian\桌面\ComboBoxTree\ComboBoxTree\obj\Debug\ResolveAssemblyReference.cache C:\Documents and Settings\yapian\桌面\ComboBoxTree\ComboBoxTree\obj\Debug\ComboBoxTree.MainForm.resources C:\Documents and Settings\yapian\桌面\ComboBoxTree\ComboBoxTree\obj\Debug\ComboBoxTree.csproj.GenerateResource.Cache C:\Documents and Settings\yapian\桌面\ComboBoxTree\ComboBoxTree\obj\Debug\ComboBoxTree.exe C:\Documents and Settings\yapian\桌面\ComboBoxTree\ComboBoxTree\obj\Debug\ComboBoxTree.pdb