获取Enum值的名称

我正在尝试创建一个函数，我们可以在其中获取枚举值的名称值

例如：

Get_Enum_ValueName(DayOfWeek, 0)

...这将返回“Sunday".

但我的代码不起作用，它说类型未定义：

Private Function Get_Enum_ValueName(Of T)(ByVal EnumName As T, ByVal EnumValue As Integer) As String
    Return DirectCast([Enum].Parse(GetType(EnumName), EnumValue ), EnumName).ToString
End Function

给定一个enum

public enum Week
{
    Monday,
    Tuesday,
    Wednesday,
    Thursday,
    Friday,
    Saturday,
    Sunday
}

您可以执行以下操作：

static void Main(string[] args)
{

    // enum to int
    int i=(int)Week.Thursday;

    // int to enum;
    Week day=(Week)3;

    // enum to string
    string name=Week.Thursday.ToString();
    string fun=Enum.GetName(typeof(Week), 6);
    string agh=Enum.GetName(typeof(Week), Week.Monday);
    string wed=EnumName(Week.Wednesday);

    // string to enum
    Week apt=(Week)Enum.Parse(typeof(Week), "Thursday");

    // all values of an enum type
    Week[] days=(Week[])Enum.GetValues(typeof(Week));

    // all names of an enum type
    string[] names=Enum.GetNames(typeof(Week));

}

static string EnumName<T>(T value)
{
    return Enum.GetName(typeof(T), value);
}

Edit 1

如果你想从一个转换enum到另一个enum基于基础数值的不同类型（转换为整数以及从整数转换），然后使用以下内容：

/// <summary>
/// Casts one enum type to another based on the underlying value
/// </summary>
/// <typeparam name="TEnum">The type of the enum.</typeparam>
/// <param name="otherEnum">The other enum.</param>
public static TEnum CastTo<TEnum>(this Enum otherEnum)
{
    return (TEnum)Enum.ToObject(typeof(TEnum), Convert.ToInt32(otherEnum));
}

用作

public enum WeekEnd
{
    Saturday = Week.Saturday,
    Sunday = Week.Sunday
}

static void Main(string[] args)
{
    var day = WeekEnd.Saturday.CastTo<Week>();
    // Week.Sunday
}