自动改变宽度的ComboBox

[{"title":"（ 22 个子文件 31KB ） 自动改变宽度的ComboBox","children":[{"title":"ComboBoxLib","children":[{"title":"ComboBoxLib.suo <span style='color:#111;'> 18.00KB </span>","children":null,"spread":false},{"title":"ComboBoxLib","children":[{"title":"bin","children":[{"title":"Debug","children":[{"title":"ComboBoxLib.vshost.exe <span style='color:#111;'> 5.50KB </span>","children":null,"spread":false},{"title":"ComboBoxLib.pdb <span style='color:#111;'> 19.50KB </span>","children":null,"spread":false},{"title":"ComboBoxLib.exe <span style='color:#111;'> 20.00KB </span>","children":null,"spread":false},{"title":"ComboBoxLib.dll <span style='color:#111;'> 20.00KB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"obj","children":[{"title":"ComboBoxLib.csproj.FileListAbsolute.txt <span style='color:#111;'> 678B </span>","children":null,"spread":false},{"title":"ComboBoxLib.csproj.FileList.txt <span style='color:#111;'> 521B </span>","children":null,"spread":false},{"title":"Debug","children":[{"title":"ComboBoxLib.combobox.resources <span style='color:#111;'> 180B </span>","children":null,"spread":false},{"title":"ComboBoxLib.csproj.GenerateResource.Cache <span style='color:#111;'> 832B </span>","children":null,"spread":false},{"title":"ComboBoxLib.FrmDemo.resources <span style='color:#111;'> 180B </span>","children":null,"spread":false},{"title":"ComboBoxLib.pdb <span style='color:#111;'> 19.50KB </span>","children":null,"spread":false},{"title":"Refactor","children":null,"spread":false},{"title":"ComboBoxLib.exe <span style='color:#111;'> 20.00KB </span>","children":null,"spread":false},{"title":"TempPE","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"Properties","children":[{"title":"AssemblyInfo.cs <span style='color:#111;'> 1.31KB </span>","children":null,"spread":false}],"spread":true},{"title":"combobox.resx <span style='color:#111;'> 5.85KB </span>","children":null,"spread":false},{"title":"ComboBoxLib.csproj.user <span style='color:#111;'> 168B </span>","children":null,"spread":false},{"title":"combobox.cs <span style='color:#111;'> 2.62KB </span>","children":null,"spread":false},{"title":"FrmDemo.resx <span style='color:#111;'> 5.68KB </span>","children":null,"spread":false},{"title":"FrmDemo.Designer.cs <span style='color:#111;'> 1.44KB </span>","children":null,"spread":false},{"title":"combobox.Designer.cs <span style='color:#111;'> 1.15KB </span>","children":null,"spread":false},{"title":"ComboBoxLib.csproj <span style='color:#111;'> 2.80KB </span>","children":null,"spread":false},{"title":"FrmDemo.cs <span style='color:#111;'> 1.50KB </span>","children":null,"spread":false}],"spread":false},{"title":"ComboBoxLib.sln <span style='color:#111;'> 972B </span>","children":null,"spread":false}],"spread":true}],"spread":true}]