Using Enum in using Block as Directive in C# 6

It is a general misconception that “using static” keyword is used to include only static classes as directive in C# 6. But I can also use Enum and non-static clasess in using directive of C# 6.

For Using Non-Static classes in using block as directive in C# 6 visit here & Using Static Classes as Directive in C# 6 visit here

Before C# 6

using System;
namespace EnumWithNameSpace
{
    enum MyColors{RED = 1,ORANGE = 2,YELLOW = 3,GREEN = 4,BLUE = 5,INDIGO = 6,VIOLET = 7};

    class Program
    {
        static void Main(string[] args)
        {
            //Before C# 6
            string[] colorListinCSharp5       = Enum.GetNames(typeof(MyColors));
            Enum MyCsharp5Enum1               = (MyColors)Enum.Parse(typeof(MyColors), "RED");
            Enum MyCsharp5Enum2               = (MyColors)Enum.Parse(typeof(MyColors), "1");
            Enum MyCsharp5Enum3               = (MyColors)1;
            Enum MyCsharp5Enum4               = (MyColors)Enum.ToObject(typeof(MyColors), 1);
            Enum MyCsharp5Enum5               = (MyColors)3;

            string myCsharp5EnumString1       = ((MyColors)1).ToString("F");
            string myCsharp5EnumString2       = ((MyColors)1).ToString("F");
            string myCsharp5EnumString3       = MyColors.BLUE.ToString("d");
            string myCsharp5EnumString4       = MyColors.BLUE.ToString("D");
            string myCsharp5EnumString5       = MyColors.BLUE.ToString("g");
            string myCsharp5EnumString6       = MyColors.BLUE.ToString("G");
            string myCsharp5EnumString7       = MyColors.BLUE.ToString("x");
            string myCsharp5EnumString8       = MyColors.BLUE.ToString("X");

            string myCsharp5EnumString9       = Enum.GetName(typeof(MyColors), 5);

            string myCsharp5FormatEnumString1 = Enum.Format(typeof(MyColors), MyColors.ORANGE, "d");
            string myCsharp5FormatEnumString2 = Enum.Format(typeof(MyColors), MyColors.ORANGE, "D");
            string myCsharp5FormatEnumString3 = Enum.Format(typeof(MyColors), MyColors.ORANGE, "f");
            string myCsharp5FormatEnumString4 = Enum.Format(typeof(MyColors), MyColors.ORANGE, "F");
            string myCsharp5FormatEnumString5 = Enum.Format(typeof(MyColors), MyColors.ORANGE, "g");
            string myCsharp5FormatEnumString6 = Enum.Format(typeof(MyColors), MyColors.ORANGE, "G");
            string myCsharp5FormatEnumString7 = Enum.Format(typeof(MyColors), MyColors.ORANGE, "x");
            string myCsharp5FormatEnumString8 = Enum.Format(typeof(MyColors), MyColors.ORANGE, "X");

        }
    }
}

 In C# 6

using System;
using static MyEnumExampleforColor.MyColors;
using static System.Enum;

namespace EnumWithoutNameSpaceinCSharp6
{
    enum MyColors { RED = 1, ORANGE = 2, YELLOW = 3, GREEN = 4, BLUE = 5, INDIGO = 6, VIOLET = 7 };

    class Program
    {
        static void Main(string[] args)
        {
            //In C# 6
            string[] colorListinCSharp6       = GetNames(typeof(MyColors));
            Enum MyCsharp6Enum1               = (MyColors)Parse(typeof(MyColors), "RED");
            Enum MyCsharp6Enum2               = (MyColors)Parse(typeof(MyColors), "1");
            Enum MyCsharp6Enum3               = (MyColors)1;
            Enum MyCsharp6Enum4               = (MyColors)ToObject(typeof(MyColors), 1);
            Enum MyCsharp6Enum5               = (MyColors)3;
            string myCsharp6EnumString1       = ((MyColors)1).ToString("F");
            string myCsharp6EnumString2       = ((MyColors)1).ToString("F");

            string myCsharp6EnumString3       = BLUE.ToString("d");
            string myCsharp6EnumString4       = BLUE.ToString("D");
            string myCsharp6EnumString5       = BLUE.ToString("g");
            string myCsharp6EnumString6       = BLUE.ToString("G");
            string myCsharp6EnumString7       = BLUE.ToString("x");
            string myCsharp6EnumString8       = BLUE.ToString("X");

            string myCsharp6EnumString9       = GetName(typeof(MyColors), 5);

            string myCsharp6FormatEnumString1 = Format(typeof(MyColors), ORANGE, "d");
            string myCsharp6FormatEnumString2 = Format(typeof(MyColors), ORANGE, "D");
            string myCsharp6FormatEnumString3 = Format(typeof(MyColors), ORANGE, "f");
            string myCsharp6FormatEnumString4 = Format(typeof(MyColors), ORANGE, "F");
            string myCsharp6FormatEnumString5 = Format(typeof(MyColors), ORANGE, "g");
            string myCsharp6FormatEnumString6 = Format(typeof(MyColors), ORANGE, "G");
            string myCsharp6FormatEnumString7 = Format(typeof(MyColors), ORANGE, "x");
            string myCsharp6FormatEnumString8 = Format(typeof(MyColors), ORANGE, "X");

        }
    }
}

 

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