.NET Custom Type Enum

Custom Type Enum (Exemplo: Application)

internal static class Application
    {
        public static FileFormat Pdf { get { return new FileFormat("pdf", "application/pdf"); } }
        public static FileFormat Excel { get { return new FileFormat("xlsx", "application/vnd.ms-excel"); } }
    }

    internal sealed class FileFormat
    {
        private readonly string _extension;
        private readonly string _mediaType;

        public FileFormat(string extension, string mediaType)
        {
            this._extension = extension;
            this._mediaType = mediaType;
        }

        public string Extension { get { return _extension; } }
        public string MediaType { get { return _mediaType; } }
    }

Invocação

static void MyMethod (FileFormat fileFormat)
{
 Console.WriteLine(fileFormat.Extension + " " + fileFormat.MediaType);
}


MyMethod(Application.Excel)

Licença CC BY-SA 4.0 Silvia Pinhão Lopes, 23.6.17