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;
}
}
}
}

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) > 0;
}

#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) > 0;
}
#endregion
｝
｝

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
}
}