Check if a constant exists in a specified enum in CSharp
Description
The following code shows how to check if a constant exists in a specified enum.
Example
using System;// w ww. ja va 2 s . c om
[Flags]
public enum Pets
{
None = 0, Dog = 1, Cat = 2, Bird = 4,
Rodent = 8, Other = 16
};
public class Example
{
public static void Main()
{
Pets value = Pets.Dog | Pets.Cat;
Console.WriteLine(Pets.IsDefined(typeof(Pets), 1));
string name = value.ToString();
Console.WriteLine(Pets.IsDefined(typeof(Pets),2));
}
}
The code above generates the following result.
