Admin/AdmAround2.aspx.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using BasketBallShop.BLL;

namespace BasketBallShop.Admin
{
    public partial class AdmAround2 : System.Web.UI.Page
    {
        int pageindex = 0, pagesize = 4, recordcount = 0;
        private void Bind(int pageindex, int pagesize, ref int recordcount)
        {
            aroundBLL bll = new aroundBLL();
            gdvSelAround.DataSource = bll.GetArounds(txtZid.Text, txtZname.Text, txtZmj.Text, pageindex, pagesize, ref recordcount);
            gdvSelAround.DataBind();
            //显示共多少页，第几页
            lblPageNo.Text = (pageindex + 1).ToString();
            lblSumNo.Text = Math.Ceiling(recordcount / (pagesize * 1.0)).ToString();
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                string[] array = { "zid" };
                gdvSelAround.DataKeyNames = array;
                Bind(pageindex, pagesize, ref recordcount);
            }
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            Bind(pageindex, pagesize, ref recordcount);
        }

        protected void lkbtnUp_Click(object sender, EventArgs e)
        {
            pageindex = int.Parse(lblPageNo.Text) - 2;
            if (pageindex > 0)
            {
                Bind(pageindex, pagesize, ref recordcount);
            }
            else
            {
                Bind(0, pagesize, ref recordcount);
            }
        }

        protected void lkbtnFirst_Click(object sender, EventArgs e)
        {
            pageindex = 0;
            Bind(pageindex, pagesize, ref recordcount);
        }

        protected void lkbtnDown_Click(object sender, EventArgs e)
        {
            pageindex = int.Parse(lblPageNo.Text);
            if (pageindex < Convert.ToInt32(lblSumNo.Text))