using System;

using System.Linq;

public class Program

{   

    [Flags]

    public enum ScoreMethods_Internal

    {

        EnumValue1 = 1,

        EnumValue2 = 2,

        EnumValue3 = 4,

        EnumValue4 = 8

    }

    public enum ScoreMethods_Dto

    {

        EnumValue1 = ScoreMethods_Internal.EnumValue1,

        EnumValue2 = ScoreMethods_Internal.EnumValue2,

        EnumValue3 = ScoreMethods_Internal.EnumValue3,

        EnumValue4 = ScoreMethods_Internal.EnumValue4

    }

    public static void Main()

    {

        ScoreMethods_Internal flagsValue = ScoreMethods_Internal.EnumValue1 | ScoreMethods_Internal.EnumValue3;// | ScoreMethods_Internal.EnumValue4;

        var test = Enum.GetValues<ScoreMethods_Internal>().Where(value => flagsValue.HasFlag(value)).ToArray();

        foreach(var value in test)

            Console.WriteLine(value);

    }

}