C# 多级动态下拉菜单

[{"title":"（ 23 个子文件 48KB ） C# 多级动态下拉菜单","children":[{"title":"ManyMenu","children":[{"title":"ManyMenu.csproj <span style='color:#111;'> 3.15KB </span>","children":null,"spread":false},{"title":"bin","children":[{"title":"Debug","children":[{"title":"ManyMenu.vshost.exe <span style='color:#111;'> 5.50KB </span>","children":null,"spread":false},{"title":"ManyMenu.pdb <span style='color:#111;'> 27.50KB </span>","children":null,"spread":false},{"title":"ManyMenu.exe <span style='color:#111;'> 20.00KB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"Form1.Designer.cs <span style='color:#111;'> 8.65KB </span>","children":null,"spread":false},{"title":"Program.cs <span style='color:#111;'> 467B </span>","children":null,"spread":false},{"title":"obj","children":[{"title":"ManyMenu.csproj.FileList.txt <span style='color:#111;'> 275B </span>","children":null,"spread":false},{"title":"Debug","children":[{"title":"ManyMenu.csproj.GenerateResource.Cache <span style='color:#111;'> 842B </span>","children":null,"spread":false},{"title":"ManyMenu.pdb <span style='color:#111;'> 27.50KB </span>","children":null,"spread":false},{"title":"ManyMenu.Properties.Resources.resources <span style='color:#111;'> 180B </span>","children":null,"spread":false},{"title":"ManyMenu.Form1.resources <span style='color:#111;'> 180B </span>","children":null,"spread":false},{"title":"TempPE","children":null,"spread":false},{"title":"ManyMenu.exe <span style='color:#111;'> 20.00KB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"Form1.cs <span style='color:#111;'> 336B </span>","children":null,"spread":false},{"title":"Form1.resx <span style='color:#111;'> 5.87KB </span>","children":null,"spread":false},{"title":"Properties","children":[{"title":"Resources.resx <span style='color:#111;'> 5.48KB </span>","children":null,"spread":false},{"title":"Settings.settings <span style='color:#111;'> 249B </span>","children":null,"spread":false},{"title":"AssemblyInfo.cs <span style='color:#111;'> 1.14KB </span>","children":null,"spread":false},{"title":"Settings.Designer.cs <span style='color:#111;'> 1.07KB </span>","children":null,"spread":false},{"title":"Resources.Designer.cs <span style='color:#111;'> 2.80KB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"ManyMenu.psess <span style='color:#111;'> 2.00KB </span>","children":null,"spread":false},{"title":"ManyMenu.sln <span style='color:#111;'> 913B </span>","children":null,"spread":false},{"title":"ManyMenu070126.vsp <span style='color:#111;'> 246.60KB </span>","children":null,"spread":false},{"title":"ManyMenu.suo <span style='color:#111;'> 11.50KB </span>","children":null,"spread":false}],"spread":true}]