Admin/AdmOrders.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 AdmOrders : System.Web.UI.Page
    {
        int pageindex = 0, pagesize = 4, recordcount = 0;
        private void Bind(int pageindex, int pagesize, ref int recordcount)
        {

            orderBll oll = new orderBll();
            GridView1.DataSource = oll.GetOrders2(txtCid.Text, txtZid.Text, pageindex, pagesize, ref recordcount);
            GridView1.DataBind();
            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 = { "orderno" };
                GridView1.DataKeyNames = array;
                Bind(pageindex, pagesize, ref recordcount);
            }
        }

        protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            orderBll oll = new orderBll();
            Bind(pageindex, pagesize, ref recordcount);
        }

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

        protected void lkbtnFirst_Click(object sender, EventArgs e)
        {
            pageindex = 0;
            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);