根据硬件返回值 查询定义并显示
请问我现在注册motion卡 比如返回 -7 我如何在messagebox.show里显示 ErrorInvalidAdRange ?

C# code

public class DASK{        public const int NoError              =0;    public const int ErrorUnknownCardType         =-1;    public const int ErrorInvalidCardNumber       =-2;    public const int ErrorTooManyCardRegistered   =-3;    public const int ErrorCardNotRegistered       =-4;    public const int ErrorFuncNotSupport          =-5;    public const int ErrorInvalidIoChannel        =-6;    public const int ErrorInvalidAdRange          =-7;    public const int ErrorContIoNotAllowed        =-8;    public const int ErrorDiffRangeNotSupport     =-9;    public const int ErrorLastChannelNotZero      =-10;    public const int ErrorChannelNotDescending    =-11;}