02Del.ashx(删除班级)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using WebHelper;

namespace AspxWebForm
{
    /// <summary>
    /// 删除班级
    /// </summary>
    public class _02Del : IHttpHandler
    {

        public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/html";
            //1.获取浏览器get传递过来的要删除的班级id
            string strId = context.Request.QueryString["id"];
            //2.验证id是否是数值
            if (CommonHelper.IsNum(strId))//验证通过
            {
                //3.删除对应的班级数据
                if (new BLL.Classes().UpdateDel(strId))
                { //删除成功
                    CommonHelper.WriteJs("删除成功~！", "01ClassesList.aspx");
                }
                else
                { //删除失败
                    CommonHelper.WriteJs("删除失败~！如果您是美女，请联系管理员~~~qq:111111", "01ClassesList.aspx");
                }
            }
            else
            {//4.验证失败
                //通过输出js 先让浏览器用户看到错误消息，然后再直接通过js控制浏览器跳转到 列表页面（再次请求服务器的列表页面）
                context.Response.Write("<script>alert('您的参数有误！您什么意思~~！');window.location='01ClassesList.aspx';</script>");
            }
        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}

 BLL

using System;
using System.Collections.Generic;
using System.Text;

namespace BLL
{
    /// <summary>
    /// 作者: liuhaitao
    /// 描述: 业务层 --  Classes表的业务操作类.
    /// 时间:2013/2/4 9:35:00
    /// </summary>
    public class Classes
    {
        private readonly DAL.Classes dal = new DAL.Classes();
        #region 04.软删除+ int UpdateDel(string ids)
        /// <summary>
        /// 软删除（将删除标志设置为true）
        /// </summary> 通常情况下： 0代表false,1代表true
        /// <param name="ids">要软删除的 id们</param>
        /// <returns>软删除成功与否</returns>
        public bool UpdateDel(string ids)
        {
            return dal.UpdateDel(ids, true) > ;
        }

        #endregion

        #region 05.物理删除 +int Del(string ids)
        /// <summary>
        /// 物理删除（将删除标志设置为true）
        /// </summary>
        /// <param name="ids">要删除的 id们</param>
        /// <returns>删除成功与否</returns>
        public bool Del(string ids)
        {
            return dal.Del(ids) > ;
        }
        #endregion
    ｝
 ｝

DAL

using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.SqlClient;

namespace DAL
{
    /// <summary>
    /// Author: JamesZou
    /// Description: 数据层 -- Classes的实体类.
    /// 创建时间:2013/2/4 9:33:40
    /// </summary>
    public class Classes
    {
        #region 01.修改软删除标志
        /// <summary>
        /// 修改软删除标志
        /// </summary>
        /// <param name="ids">要修改软删除标志的id号们(1,2,5)</param>
        /// <param name="isDel">要将删除标志 改成 true/false</param>
        /// <returns>受影响行数</returns>
        public int UpdateDel(string ids, bool isDel)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("exec('update Classes set CIsDel=''" + isDel.ToString() + "'' where CID in ('+@ids+')')");
            SqlParameter para = new SqlParameter("@ids", ids);
            return DbHelperSQL.ExcuteNonQuery(strSql.ToString(), para);
        }
        #endregion

        #region 01.2单个修改软删除标志
        /// <summary>
        /// 单个修改软删除标志
        /// </summary>
        /// <param name="idInt">要修改软删除标志的id号</param>
        /// <param name="isDel">要将删除标志 改成 true/false</param>
        /// <returns>受影响行数</returns>
        public int UpdateDel(int idInt, bool isDel)
        {
            string strSql = "update Classes set CIsDel='" + isDel.ToString() + "' where CID = @id";
            SqlParameter para = new SqlParameter("@id", idInt);
            return DbHelperSQL.ExcuteNonQuery(strSql, para);
        }
        #endregion

        #region 02.执行物理删除 +int Del(string ids)
        /// <summary>
        /// 执行物理删除
        /// </summary>
        /// <param name="ids">要删除的id号们(1,2,5)</param>
        /// <returns>受影响行数</returns>
        public int Del(string ids)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("exec('delete Classes where CID in ('+@ids+')')");
            SqlParameter para = new SqlParameter("@ids", ids);
            return DbHelperSQL.ExcuteNonQuery(strSql.ToString(), para);
        }
        #endregion

        #region 02.2单个物理删除
        /// <summary>
        /// 单个物理删除
        /// </summary>
        /// <param name="idInt">要删除的id号</param>
        /// <returns>受影响行数</returns>
        public int Del(int idInt)
        {
            string strSql = "delete Classes where CID = @id";
            SqlParameter para = new SqlParameter("@id", idInt);
            return DbHelperSQL.ExcuteNonQuery(strSql, para);
        }
        #endregion
      }
     }