public enum ErrorCodeEnum
{
    // Init value
    UnSet = -0001,
    // NO error occurs
    Success = 0000,
    // General error
    Error = 0001,
    Exception = 0002,
    // Define your own error code
    // ...
    InvalidParameter = 0051,
    TypeConvert = 0052,
    Deserialize = 0053,
}