iorder.cs

某个公司需要维持良好的客户关系

using System;
using CRM.Model;
using System.Data;


namespace CRM.IDAL
{
	/// <summary>
	/// IOrder 的摘要说明。
	/// </summary>
	public interface IOrder
	{
		/// <summary>
		/// 返回指定订单信息
		/// </summary>
		/// <param name="orderId">订单ID</param>
		/// <returns></returns>
		OrderInfo GetOrderById(string orderId);

		/// <summary>
		/// 返回指定客户的所有订单信息
		/// </summary>
		/// <param name="customerId">客户ID</param>
		/// <returns></returns>
		DataTable GetOrderByCustomerId(string customerId);

		/// <summary>
		/// 返回所有订单信息
		/// </summary>
		/// <returns></returns>
		DataTable GetAllOrder();

		/// <summary>
		/// 添加一条新的订单记录
		/// </summary>
		/// <param name="order">订单信息</param>
		void Insert(OrderInfo order);

		/// <summary>
		/// 修改指定订单信息
		/// </summary>
		/// <param name="order">订单信息</param>
		void Update(OrderInfo order);

		/// <summary>
		/// 删除指定订单信息
		/// </summary>
		/// <param name="orderId">订单ID</param>
		void Delete(string orderId);
		DataTable GetOrderByUserId(string userid);
	}
}