combobox里面加载treeview （Treeviewcombobox）

combobox里面加载treeview

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.Drawing;

namespace TreeComboBox
{
	public class TreeComboBox : UserControl
	{
		#region 自定义成员变量

		private TextBox m_TextBox;
		private TreeView m_TreeView;
		private Button m_DropdownButton;
		private int m_MaxDropDownItems = 8;
		//是否正在显示下拉列表
		private bool b_Dropdown = false;
		//使能
		private bool b_Enabled = true;
		//事件
		public event EventHandler DropDown;
		public event EventHandler DropDownClosed;
		public event EventHandler EnableChanged;
		public event TreeViewCancelEventHandler BeforeExpand;
		public event TreeViewCancelEventHandler BeforeCollapse;
		public event TreeViewEventHandler AfterExpand;
		public event TreeViewEventHandler AfterCollapse

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

    ..A..H.     55296  2017-11-07 14:18  TreeComboBox1\.vs\TreeComboBox\v15\.suo

     文件          0  2017-11-07 13:28  TreeComboBox1\.vs\TreeComboBox\v15\Server\sqlite3\db.lock

     文件     495616  2017-11-07 14:18  TreeComboBox1\.vs\TreeComboBox\v15\Server\sqlite3\storage.ide

     文件      12800  2017-11-08 12:01  TreeComboBox1\TreeComboBox\bin\Debug\TreeComboBox.dll

     文件      28160  2017-11-08 12:01  TreeComboBox1\TreeComboBox\bin\Debug\TreeComboBox.pdb

     文件        134  2008-01-29 13:32  TreeComboBox1\TreeComboBox\BM_dropdown.bmp

     文件       1229  2017-11-07 14:39  TreeComboBox1\TreeComboBox\obj\Debug\DesignTimeResolveAssemblyReferences.cache

     文件       6043  2017-11-15 09:20  TreeComboBox1\TreeComboBox\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件        134  2008-01-29 13:32  TreeComboBox1\TreeComboBox\obj\Debug\TreeComboBox.BM_dropdown.bmp

     文件         42  2017-11-07 13:27  TreeComboBox1\TreeComboBox\obj\Debug\TreeComboBox.csproj.CoreCompileInputs.cache

     文件       3619  2017-11-08 11:57  TreeComboBox1\TreeComboBox\obj\Debug\TreeComboBox.csproj.FileListAbsolute.txt

     文件        781  2017-11-08 12:01  TreeComboBox1\TreeComboBox\obj\Debug\TreeComboBox.csproj.GenerateResource.Cache

     文件       1343  2017-11-08 11:57  TreeComboBox1\TreeComboBox\obj\Debug\TreeComboBox.csprojResolveAssemblyReference.cache

     文件      12800  2017-11-08 12:01  TreeComboBox1\TreeComboBox\obj\Debug\TreeComboBox.dll

     文件      28160  2017-11-08 12:01  TreeComboBox1\TreeComboBox\obj\Debug\TreeComboBox.pdb

     文件        180  2017-11-08 12:01  TreeComboBox1\TreeComboBox\obj\Debug\TreeComboBox.TreeComboBox.resources

     文件        194  2008-01-30 01:41  TreeComboBox1\TreeComboBox\obj\TreeComboBox.csproj.FileList.txt

     文件        112  2017-11-07 18:54  TreeComboBox1\TreeComboBox\Properties\AssemblyInfo.cs

    ..A.SH.      3072  2008-01-29 23:51  TreeComboBox1\TreeComboBox\Thumbs.db

     文件      12621  2017-11-08 12:01  TreeComboBox1\TreeComboBox\TreeComboBox.cs

     文件       2699  2017-11-07 14:01  TreeComboBox1\TreeComboBox\TreeComboBox.csproj

     文件        227  2017-11-07 10:01  TreeComboBox1\TreeComboBox\TreeComboBox.csproj.user

     文件       5817  2017-11-08 12:01  TreeComboBox1\TreeComboBox\TreeComboBox.resx

     文件       1428  2017-10-31 20:52  TreeComboBox1\TreeComboBox.sln

    ..A..H.     19456  2008-01-30 01:58  TreeComboBox1\TreeComboBox.suo

    ..A..H.     67584  2017-11-15 09:26  TreeComboBox1\TreeComboBox.v11.suo

     文件        122  2017-10-31 23:17  TreeComboBox1\TreeComboBoxTest\app.config

     文件      12800  2017-11-08 12:01  TreeComboBox1\TreeComboBoxTest\bin\Debug\TreeComboBox.dll

     文件      28160  2017-11-08 12:01  TreeComboBox1\TreeComboBoxTest\bin\Debug\TreeComboBox.pdb

     文件       9216  2017-11-15 09:22  TreeComboBox1\TreeComboBoxTest\bin\Debug\TreeComboBoxTest.exe

............此处省略55个文件信息