Get the name of Enum value

Question

I'm trying to make a function where we can get the Namevalue of a EnumValue

For example:

Get_Enum_ValueName(DayOfWeek, 0) 

...This will return "Sunday".

But my code don't works, it says the type is not defined:

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 

Answer 1

Given an enum

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

here are the things you can do:

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

If you want to convert from one enum to another enum of different type based on the underlying numeric value (convert to integer and from integer), then use the following:

/// <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)); } 

to be used as

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

Answer 2

In C#, that would be:

return Enum.ToObject(typeof(T), EnumValue).ToString(); 

or (equally):

return ((T)(object)(EnumValue)).ToString();