ENUM in C# ASP.NET

namespace RDotNet.Graphics

{

    public enum LineEnd

    {

        Round = 1,

        Butt = 2,

        Square = 3,

    }

    public enum LineJoin

    {

        Round = 1,

        Miter = 2,

        Beveled = 3,

    }

    public enum LineType

    {

        Blank = -1,

        Solid = 0,

        Dashed = 4 + (4 << 4),

        Dotted = 1 + (3 << 4),

        DotDash = 1 + (3 << 4) + (4 << 8) + (3 << 12),

        LongDash = 7 + (3 << 4),

        TwoDash = 2 + (2 << 4) + (6 << 8) + (2 << 12),

    }

    public enum Unit

    {

        Device = 0,

        NormalizedDeviceCoordinates = 1,

        Inches = 2,

        Centimeters = 3,

    }

    public enum Adjustment

    {

        None = 0,

        Half = 1,

        All = 2,

    }

    public enum FontFace

    {

        Plain = 1,

        Bold = 2,

        Italic = 3,

        BoldItalic = 4,

    }

reference:-      

} https://github.com/rdotnet/rdotnet/blob/master/RDotNet.Graphics/Enum.cs

namespace RDotNet.Graphics

{

    public enum LineEnd

    {

        Round = 1,

        Butt = 2,

        Square = 3,

    }

    public enum LineJoin

    {

        Round = 1,

        Miter = 2,

        Beveled = 3,

    }

    public enum LineType

    {

        Blank = -1,

        Solid = 0,

        Dashed = 4 + (4 << 4),

        Dotted = 1 + (3 << 4),

        DotDash = 1 + (3 << 4) + (4 << 8) + (3 << 12),

        LongDash = 7 + (3 << 4),

        TwoDash = 2 + (2 << 4) + (6 << 8) + (2 << 12),

    }

    public enum Unit

    {

        Device = 0,

        NormalizedDeviceCoordinates = 1,

        Inches = 2,

        Centimeters = 3,

    }

    public enum Adjustment

    {

        None = 0,

        Half = 1,

        All = 2,

    }

    public enum FontFace

    {

        Plain = 1,

        Bold = 2,

        Italic = 3,

        BoldItalic = 4,

    }

reference:- https://github.com/rdotnet/rdotnet/blob/master/RDotNet.Graphics/Enum.cs