ibargain.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>
	/// IBargain 的摘要说明。
	/// </summary>
	public interface IBargain
	{
		/// <summary>
		/// 根据ID返回合同信息
		/// </summary>
		/// <param name="bargainId">合同ID</param>
		/// <returns>合同信息</returns>
		BargainInfo GetBargainById(string bargainId);
		
		/// <summary>
		/// 根据客户ID返回所有相关合同信息
		/// </summary>
		/// <param name="customerId">客户ID</param>
		/// <returns>相关合同信息</returns>
		DataTable GetBargainByCustomerId(string customerId);
		
		/// <summary>
		///返回所有合同信息 
		/// </summary>
		/// <returns>所有合同信息</returns>
		DataTable GetAllBargain();

		/// <summary>
		/// 添加一条合同记录
		/// </summary>
		/// <param name="bargain">合同信息</param>
		void Insert(BargainInfo bargain);

		/// <summary>
		/// 修改合同信息
		/// </summary>
		/// <param name="bargain">合同信息</param>
		void Update(BargainInfo bargain);

		/// <summary>
		/// 删除指定合同信息
		/// </summary>
		/// <param name="bargainId">合同ID</param>
		void Delete(string bargainId);
		DataTable GetBargainByUserId(string userid);
	}
}