/// <summary>
/// 用户自定义异常
/// </summary>
public class CustomException : Exception
{
   private string MSG = "系统产生用户自定义异常!";
   private object _sender = null;
   
   public CustomException(object sender, string msg)
   : base(msg)
   {
      _sender = sender;
   }
}

/// <summary>
/// 用户操作未授权的窗体或业务逻辑所产生的异常
/// </summary>
public class UnauthorizedException : CustomException
{
   public UnauthorizedException(object sender, string msg)
   : base(sender, msg)
   {
      //
   }
}

/// <summary>
/// 用户操作已锁定的单据
/// </summary>
public class OperateLockedOrder : CustomException
{
   public OperateLockedOrder(object sender, string msg)
   : base(sender, msg)
   {
      //
   }
}

// 来源:www.CSFramework.com, C/S结构框架学习网

/// <summary>
/// 处理系统所产生的异常
/// </summary>
public class ExceptionHandle
{
   
   //处理由sender参数传递过来的异常
   public static void Handle(object sender, Exception ex)
   {
      string msg = "Sender:" sender.GetType().Name ":\r\nException Type:"
      ex.GetType().Name "\r\nDescription:" ex.Message;
      
      ExceptionLog.WriteLog(msg "\r\nException Time:" DateTime.Now.ToString());
      ExceptionLog.WriteLog("------------------------------------------------------");
      
      _text.Text = msg; //在TextBox控件内显示
      
      MessageBox.Show(msg, "捕获到异常", MessageBoxButtons.OK, MessageBoxIcon.Error);
   }
   
   private static TextBox _text = null;
   
   /// <summary>
   /// 这个方法仅用于显示当前异常信息，无实际意义!
   /// </summary>
   public static void ExceptionTextBox(TextBox text)
   {
      _text = text;
   }
}

// 来源:www.CSFramework.com, C/S结构框架学习网