flilghtcollection.cs

此项目是用asp.net开发的航班查询系统

using System;
using System.Collections;

namespace 数据访问.实体类
{
	/// <summary>
	/// FlilghtCollection 的摘要说明。
	/// </summary>
	public class FlilghtCollection:CollectionBase
	{
		/// <summary>
		/// Flight索引器
		/// </summary>
		public Flight this[int index]
		{
			get
			{
				return (Flight) List[index];
			}
			set
			{
				List[index]=value;
			}
		}

		/// <summary>
		/// 按航班编号查找航班信息
		/// </summary>
		/// <param name="flightId"></param>
		/// <returns></returns>
		public Flight FindFlightById(int flightId)
		{
			foreach(Flight flight in List)
			{
				if(flight.FlightId==flightId)
				{
					return flight;
				}
			}
			return null;
		}
        
		/// <summary>
		/// 添加航班信息
		/// </summary>
		/// <param name="value"></param>
		/// <returns></returns>
		public int Add(Flight value)
		{
			return (List.Add(value));
		}

		/// <summary>
		/// 查询航班信息的索引
		/// </summary>
		/// <param name="value"></param>
		/// <returns></returns>
		public int IndexOf(Flight value)
		{
			return (List.IndexOf(value));
		}

		/// <summary>
		/// 更新航班信息
		/// </summary>
		/// <param name="index"></param>
		/// <param name="value"></param>
		public void Insert(int index,Flight value)
		{
			List.Insert(index,value);
		}

		/// <summary>
		/// 删除航班信息
		/// </summary>
		/// <param name="value"></param>
		public void Remove(Flight value)
		{
			List.Remove(value);
		}

		/// <summary>
		/// 查询航班信息是否存在
		/// </summary>
		/// <param name="value"></param>
		/// <returns></returns>
		public bool Contains(Flight value)
		{
			return (List.Contains(value));
		}
		
	}
}