blexception.cs

网上鲜花销售系统 内有源码和需求分析

using System;

namespace DingHaokai.BussinessLogic
{
	public enum ExceptionType {None, Normal, Serious, Fatal, DataLoadFailed, DataValidateFailed, RecordNotFound, UpdateFailed, FieldLengthUnmatched, BillStateUnmatched}
	/// <summary>
	/// BLException 的摘要说明。
	/// </summary>
	public class BLException : Exception
	{
		private ExceptionType exceptionType;
		private string message;
		public BLException(ExceptionType exType, string message)
		{
			this.exceptionType = exType;
			this.message = message;
		}

		public BLException(ExceptionType exType): this(exType, null)
		{
		}

		public override string Message
		{
			get
			{
				string typeText = "";
				if (exceptionType != ExceptionType.None)
					typeText = /*CDMS.Utility.*/MessagesFactory.ExceptionMessages[exceptionType.ToString()]+":\r\n";
				return typeText+message;
			}
		}

	}

	public class MessagesFactory
	{
		public static ExceptionMessages ExceptionMessages
		{
			get
			{
				return ExceptionMessages.Instance;
			}
		}
	}

	public class ExceptionMessages
	{
		private static ExceptionMessages msg;
		private ExceptionMessages()
		{
		}

		public static ExceptionMessages Instance
		{
			get
			{
				if (msg==null)
					msg = new ExceptionMessages();
				return msg;
			}
		}

		public string this[string msgID]
		{
			get { return GetMessageText(msgID); }
			set { SetMessageText(msgID, value); }
		}

		public string GetMessageText(string msgID)
		{
			string text=null;
			switch (msgID)
			{
				case "None":
					text = "";
					break;
				case "Normal":
					text = "一般性错误";
					break;
				case "Serious":
					text = "严重错误";
					break;
				case "Fatal":
					text = "致命性错误";
					break;
				case "DataLoadFailed":
					text = "加载数据失败";
					break;
				case "DataValidateFailed":
					text = "数据验证失败";
					break;
				case "RecordNotFound":
					text = "记录未找到";
					break;
				case "UpdateFailed":
					text = "数据更新失败";
					break;
				case "FieldLengthUnmatched":
					text = "在字段[{0}]中输入的值超出该字段最大长度：{1}";
					break;
				case "BillStateUnmatched":
					text = "单据状态不符";
					break;
				default:
					text = "未知错误";
					break;
			}
			return text;
		}

		public void SetMessageText(string msgID, string msgText)
		{
		}

	}

}