namespace BLL
{
    using System;
    using System.Runtime.Serialization;
    /// 
    /// 自定义异常  系统将捕获此异常,并转到自定义错误页面
    /// 
    [Serializable()]
    public class FriendlyException : Exception
    {
        /// 
        /// 构造异常
        /// 
        public FriendlyException()
            : base()
        {
        }
        /// 
        /// 构造异常
        /// 
        /// 显示信息
        public FriendlyException(string message)
            : base(message)
        {
        }
        /// 
        /// 构造异常
        /// 
        /// 显示信息
        /// 内部异常类
        public FriendlyException(string message, Exception inner)
            : base(message, inner)
        {
        }
        /// 
        ///  构造异常
        /// 
        /// 序列化信息
        /// 数据流上下文
        protected FriendlyException(SerializationInfo info, StreamingContext context)
            : base(info, context)
        {
        }
    }
}