資源簡介
我在之前很多文章里面，介紹過Winform主界面的開發，基本上都是標準的界面，在頂部放置工具欄，中間區域則放置多文檔的內容，但是在頂部菜單比較多的時候，就需要把菜單分為幾級處理，如可以在頂部菜單放置一二級菜單，這種方式在一般功能點不算太多的情況下，呈現的界面效果較為直觀、也較為美觀。不過隨著一些系統功能的增多，這種方式可能就會顯得工具欄比較擁擠，那么我們是否可以在左側放置一個樹形列表，這樣通過樹形列表的收縮折疊，就可以放置非常多的菜單功能了。
代碼片段和文件信息
using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Data.SqlClient;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Windows.Forms;
using?System.Collections;
namespace?TreeViewLearn
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}
????????private?void?btnAddTotal_Click（object?sender?EventArgs?e）
????????{
????????????if（string.IsNullOrEmpty（textBox1.Text.Trim（）））
????????????{
????????????????MessageBox.Show（“請填寫要添加的節點名稱！“）;
????????????????return;
????????????}
????????????string?sql?=?“insert?into?TreeTest（nodeNameparentId）?output?inserted.id?values“+“（“+“?“+“‘“+textBox1.Text.Trim（）+“‘“+““+“‘“+0+“‘“+“）“ ?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
????.......???????271??2016-05-06?11:23??Treeview\TreeViewLearn\TreeViewLearn\App.config
?????文件??????25088??2017-03-17?14:59??Treeview\TreeViewLearn\TreeViewLearn\bin\Debug\TreeViewLearn.exe
????.......???????271??2016-05-06?11:23??Treeview\TreeViewLearn\TreeViewLearn\bin\Debug\TreeViewLearn.exe.config
?????文件??????71168??2017-03-17?14:59??Treeview\TreeViewLearn\TreeViewLearn\bin\Debug\TreeViewLearn.pdb
????.......?????11600??2017-03-17?14:59??Treeview\TreeViewLearn\TreeViewLearn\bin\Debug\TreeViewLearn.vshost.exe
????.......???????271??2016-05-06?11:23??Treeview\TreeViewLearn\TreeViewLearn\bin\Debug\TreeViewLearn.vshost.exe.config
????.......???????490??2015-06-04?12:48??Treeview\TreeViewLearn\TreeViewLearn\bin\Debug\TreeViewLearn.vshost.exe.manifest
?????文件???????7059??2016-05-15?13:45??Treeview\TreeViewLearn\TreeViewLearn\Form1.cs
?????文件???????7846??2016-05-15?10:26??Treeview\TreeViewLearn\TreeViewLearn\Form1.Designer.cs
?????文件???????5817??2016-05-15?10:26??Treeview\TreeViewLearn\TreeViewLearn\Form1.resx
?????文件???????3067??2017-03-17?14:41??Treeview\TreeViewLearn\TreeViewLearn\Form2.cs
?????文件???????3906??2017-03-17?14:41??Treeview\TreeViewLearn\TreeViewLearn\Form2.Designer.cs
?????文件???????5817??2017-03-17?14:41??Treeview\TreeViewLearn\TreeViewLearn\Form2.resx
?????文件???????6014??2017-03-17?14:51??Treeview\TreeViewLearn\TreeViewLearn\Form3.cs
?????文件??????10509??2017-03-17?14:45??Treeview\TreeViewLearn\TreeViewLearn\Form3.Designer.cs
?????文件???????6228??2017-03-17?14:45??Treeview\TreeViewLearn\TreeViewLearn\Form3.resx
?????文件????????919??2016-05-15?16:43??Treeview\TreeViewLearn\TreeViewLearn\Form4.cs
?????文件???????3901??2016-05-15?15:49??Treeview\TreeViewLearn\TreeViewLearn\Form4.Designer.cs
?????文件???????5817??2016-05-15?15:49??Treeview\TreeViewLearn\TreeViewLearn\Form4.resx
????.......??????5359??2016-05-06?10:44??Treeview\TreeViewLearn\TreeViewLearn\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache
?????文件???????6499??2017-03-17?14:59??Treeview\TreeViewLearn\TreeViewLearn\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache
?????文件???????2706??2017-03-17?14:59??Treeview\TreeViewLearn\TreeViewLearn\obj\x86\Debug\TreeViewLearn.csproj.FileListAbsolute.txt
?????文件???????1149??2017-03-17?14:46??Treeview\TreeViewLearn\TreeViewLearn\obj\x86\Debug\TreeViewLearn.csproj.GenerateResource.Cache
????.......??????9836??2016-05-06?17:04??Treeview\TreeViewLearn\TreeViewLearn\obj\x86\Debug\TreeViewLearn.csprojResolveAssemblyReference.cache
?????文件??????25088??2017-03-17?14:59??Treeview\TreeViewLearn\TreeViewLearn\obj\x86\Debug\TreeViewLearn.exe
?????文件????????180??2016-05-15?15:54??Treeview\TreeViewLearn\TreeViewLearn\obj\x86\Debug\TreeViewLearn.Form1.resources
?????文件????????180??2017-03-17?14:42??Treeview\TreeViewLearn\TreeViewLearn\obj\x86\Debug\TreeViewLearn.Form2.resources
?????文件????????180??2017-03-17?14:46??Treeview\TreeViewLearn\TreeViewLearn\obj\x86\Debug\TreeViewLearn.Form3.resources
?????文件????????180??2016-05-15?15:54??Treeview\TreeViewLearn\TreeViewLearn\obj\x86\Debug\TreeViewLearn.Form4.resources
?????文件??????71168??2017-03-17?14:59??Treeview\TreeViewLearn\TreeViewLearn\obj\x86\Debug\TreeViewLearn.pdb
............此處省略26個文件信息
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