WinForm带复选框的下拉表

[{"title":"（ 15 个子文件 37KB ） WinForm带复选框的下拉表","children":[{"title":"UCComboBox","children":[{"title":"UCComboBox.suo <span style='color:#111;'> 18.00KB </span>","children":null,"spread":false},{"title":"UCComboBox.sln <span style='color:#111;'> 920B </span>","children":null,"spread":false},{"title":"UCComboBox","children":[{"title":"bin","children":[{"title":"Debug","children":[{"title":"UCComboBox.pdb <span style='color:#111;'> 25.50KB </span>","children":null,"spread":false},{"title":"UCComboBox.dll <span style='color:#111;'> 13.00KB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"DropDownBox.Designer.cs <span style='color:#111;'> 2.63KB </span>","children":null,"spread":false},{"title":"DropDownBox.cs <span style='color:#111;'> 379B </span>","children":null,"spread":false},{"title":"xcmb.cs <span style='color:#111;'> 18.52KB </span>","children":null,"spread":false},{"title":"obj","children":[{"title":"Debug","children":[{"title":"UCComboBox.csproj.GenerateResource.Cache <span style='color:#111;'> 908B </span>","children":null,"spread":false},{"title":"TempPE","children":null,"spread":false},{"title":"UCComboBox.pdb <span style='color:#111;'> 25.50KB </span>","children":null,"spread":false},{"title":"UCComboBox.csproj.FileListAbsolute.txt <span style='color:#111;'> 445B </span>","children":null,"spread":false},{"title":"Refactor","children":null,"spread":false},{"title":"UCComboBox.DropDownBox.resources <span style='color:#111;'> 180B </span>","children":null,"spread":false},{"title":"UCComboBox.dll <span style='color:#111;'> 13.00KB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"DropDownBox.resx <span style='color:#111;'> 5.68KB </span>","children":null,"spread":false},{"title":"UCComboBox.csproj <span style='color:#111;'> 3.00KB </span>","children":null,"spread":false},{"title":"Properties","children":[{"title":"AssemblyInfo.cs <span style='color:#111;'> 1.32KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true}],"spread":true}]