在C#中将超出范围的数字转换为枚举不会产生异常

using System;
using System.Collections.Generic;

public enum MyEnum
{
    Value1 = 1,
    Value2 = 2,
    Value3 = 3
}

public class Program
{
    public static void Main()
    {
        int number = 4;
        MyEnum result;

        if (IsValidEnumValue<MyEnum>(number, out result))
        {
            Console.WriteLine("Converted value: " + result);
        }
        else
        {
            Console.WriteLine("Invalid enum value.");
        }
    }

    public static bool IsValidEnumValue<T>(int value, out T result) where T : struct, IConvertible
    {
        result = default(T);

        if (!typeof(T).IsEnum)
        {
            return false;
        }

        foreach (var item in Enum.GetValues(typeof(T)))
        {
            if (item.ToInt32(null) == value)
            {
                result = (T)item;
                return true;
            }
        }

        return false;
    }
}