BLL/Admin.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using DataLinq;
using BLL.extention;

namespace BLL
{
    public class Admin : BllBase<T_admin>
    {
        public Admin(TestDataContext context) : base(context) { }

       /// <summary>根据id号删除
        /// 
        /// </summary>
        /// <param name="id"></param>
       public void Delete(int id)
       {
           context.T_admin.DeleteBatch(p => p.admin_id == id);
       }

        /// <summary>根据id更新一数据
        /// 
        /// </summary>
        /// <param name="id"></param>
        /// <param name="entity"></param>
        public void Update(T_admin entity)
       {
           context.T_admin.UpdateBatch(p => p.admin_id == entity.admin_id,
               p => new T_admin { admin_name = entity.admin_name,
                   password = entity.password });
       }

        /// <summary>根据id 搜索一条数据
        /// 
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
         public T_admin Find(int id)
        {
             try
             {
                 return context.T_admin.SingleOrDefault(p => p.admin_id == id);
             }
             catch (System.Exception ex)
             {
                 return null;
             }
        }
    }
}