some method of Enum not in common use

UploadVIP\UploadVIP\App.config
.........\.........\bin\Debug\UploadVIP.exe
.........\.........\...\.....\UploadVIP.exe.config
.........\.........\...\.....\UploadVIP.pdb
.........\.........\...\.....\UploadVIP.vshost.exe
.........\.........\...\.....\UploadVIP.vshost.exe.config
.........\.........\...\.....\UploadVIP.vshost.exe.manifest
.........\.........\EnumOperate.cs
.........\.........\obj\Debug\DesignTimeResolveAssemblyReferences.cache
.........\.........\...\.....\DesignTimeResolveAssemblyReferencesInput.cache
.........\.........\...\.....\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs
.........\.........\...\.....\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs
.........\.........\...\.....\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs
.........\.........\...\.....\UploadVIP.csproj.FileListAbsolute.txt
.........\.........\...\.....\UploadVIP.csproj.GenerateResource.Cache
.........\.........\...\.....\UploadVIP.csprojResolveAssemblyReference.cache
.........\.........\...\.....\UploadVIP.exe
.........\.........\...\.....\UploadVIP.pdb
.........\.........\...\.....\UploadVIP.Properties.Resources.resources
.........\.........\...\.....\UploadVIP.UploadVIP.resources
.........\.........\Operate.cs
.........\.........\Properties\AssemblyInfo.cs
.........\.........\..........\Resources.Designer.cs
.........\.........\..........\Resources.resx
.........\.........\..........\Settings.Designer.cs
.........\.........\..........\Settings.settings
.........\.........\UploadVIP.cs
.........\.........\UploadVIP.csproj
.........\.........\UploadVIP.Designer.cs
.........\.........\UploadVIP.resx
.........\UploadVIP.sln
.........\UploadVIP.v11.suo
.........\.........\obj\Debug\TempPE
.........\.........\bin\Debug
.........\.........\...\Release
.........\.........\obj\Debug
.........\.........\bin
.........\.........\obj
.........\.........\Properties
.........\UploadVIP
UploadVIP

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