https://learn.microsoft.com/ru-ru/dotnet/api/system.directoryservices.activedirectory.activedirectoryschemaclass.findbyname?view=windowsdesktop-10.0&viewFallbackFrom=dotnet-plat-ext-8.0
ActiveDirectorySchemaClass.FindByName(DirectoryContext, String) Method...
Gets an ActiveDirectorySchemaClass object in the Active Directory Domain Services schema partition that matches a given directory context and name.
stringmethod