EnumExtensions.cs

public static class EnumExtensions
{
    public static bool TryConvert<TEnum>(int intValue, out TEnum enumValue) where TEnum : struct
    {
        if (typeof(TEnum).IsEnum == false)
        {
            throw new ArgumentException("TryConvert works only for Enum types");
        }

        if (Enum.IsDefined(typeof(TEnum), intValue) == false)
        {
            enumValue = default(TEnum);
            return false;
        }

        var value = (object)intValue; // casting to object is workaround, cannot do: 
        enumValue = (TEnum)value;     // enumValue = (TEnum)intValue;

        return true;
    }
}