分页展示

HTML

当前第【<asp:Label ID="Label_Now" runat="server" Text="Label"></asp:Label>】页&nbsp;&nbsp;
            共【<asp:Label ID="Label_Max" runat="server" Text="Label"></asp:Label>】页&nbsp;&nbsp;
            &nbsp;&nbsp;
            <asp:Button ID="btn_first" runat="server" Text="首页" />
            &nbsp;&nbsp;
                        <asp:Button ID="btn_prev" runat="server" Text="上一页" />
            &nbsp;&nbsp;
                        <asp:Button ID="btn_next" runat="server" Text="下一页" />
            &nbsp;&nbsp;
                        <asp:Button ID="btn_lest" runat="server" Text="末页" />
            <asp:DropDownList ID="DropDownList1" runat="server"></asp:DropDownList>
            <asp:Button ID="Button1" runat="server" Text="跳转" />

    public List<Warehouse> selects(int count,int NowPage)
    {
        List<Warehouse> war = new List<Warehouse>();
        cmd.CommandText = "select top "+count+"  * from Warehouse WHERE ids NOT IN (SELECT TOP "+(NowPage-1)*count+" ids FROM Warehouse)";
        conn.Open();
        SqlDataReader dr = cmd.ExecuteReader();
        if (dr.HasRows)
        {
            while (dr.Read())
            {
                Warehouse ware = new Warehouse();
                ware.ids = Convert.ToInt32(dr[0].ToString());
                ware.name = dr[1].ToString();
                ware.Unit = Convert.ToDouble(dr[2].ToString());
                ware.Number = Convert.ToInt32(dr[3].ToString());
                ware.dtime = Convert.ToDateTime(dr[4].ToString());
                ware.Shelf = Convert.ToInt32(dr[5].ToString());
                ware.jname = dr[6].ToString();
                ware.dianhua = dr[7].ToString();
                war.Add(ware);
            }
        }
        conn.Close();
        return war;
    }

实体类

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

public partial class logo : System.Web.UI.Page
{
    public string asc = null;
    int count = 5;//一页要显示的条数
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            Label_Now.Text = "1";
            Label_Max.Text = Max().ToString();
            Repeater1.DataSource = new WarehouseDate().selects(count, 1);
            Repeater1.DataBind();
            btn_prev.Enabled = false;

            int max = Max();
            DropDownList1.Items.Clear();
            for (int i = 1; i <= max; i++)
            {
                DropDownList1.Items.Add(new ListItem(i.ToString(), i.ToString()));
            }
        }
        #region
        asc = Request["ppp"];
        Label1.Text = asc;
        if (Request.Cookies["name"] != null)
        {
            Label1.Text = Request.Cookies["name"].Value;
        }
        else
            Response.Redirect("Default.aspx");
        Label1.Text += "登录成功,欢迎你!";
        #endregion

        DropDownList1.TextChanged += DropDownList1_TextChanged;
        DropDownList1.AutoPostBack = true;
        btn_lest.Click += btn_lest_Click;//末页
        btn_next.Click += btn_next_Click;//下一页
        btn_first.Click += btn_first_Click;//首页
        btn_prev.Click += btn_prev_Click;//上一页
        Button1.Click += Button1_Click;//跳转

    }

    void DropDownList1_TextChanged(object sender, EventArgs e)
    {
        //获取当前页，计算要看的下一页的页号;
        int nextpage = Convert.ToInt32(DropDownList1.SelectedValue);

        //判断是否有下一页
        //if(nextpage>Max())
        //{
        //    return;
        //}
        if (nextpage <= 1)
        {
            btn_prev.Enabled = false;
        }
        else
        {
            btn_prev.Enabled = true;
        }
        if (nextpage >= 12)
        {
            btn_next.Enabled = false;
        }
        else
            btn_next.Enabled = true;

        //按照获取的页数绑定相应的页数
        Repeater1.DataSource = new WarehouseDate().selects(count, nextpage);
        Repeater1.DataBind();

        //修改显示页数
        Label_Now.Text = nextpage.ToString();

    }

    void Button1_Click(object sender, EventArgs e)
    {

        //获取当前页，计算要看的下一页的页号;
        int nextpage = Convert.ToInt32(DropDownList1.SelectedValue);

        //判断是否有下一页
        //if(nextpage>Max())
        //{
        //    return;
        //}
        if (nextpage <= 1)
        {
            btn_prev.Enabled = false;
        }
        btn_next.Enabled = true;
        //按照获取的页数绑定相应的页数
        Repeater1.DataSource = new WarehouseDate().selects(count, nextpage);
        Repeater1.DataBind();

        //修改显示页数
        Label_Now.Text = nextpage.ToString();
    }

    void btn_prev_Click(object sender, EventArgs e)
    {
        //获取当前页，计算要看的下一页的页号;
        int nextpage = Convert.ToInt32(Label_Now.Text) - 1;

        //判断是否有下一页
        //if(nextpage>Max())
        //{
        //    return;
        //}
        if (nextpage <= 1)
        {
            btn_prev.Enabled = false;
        }
        btn_next.Enabled = true;
        //按照获取的页数绑定相应的页数
        Repeater1.DataSource = new WarehouseDate().selects(count, nextpage);
        Repeater1.DataBind();

        //修改显示页数
        Label_Now.Text = nextpage.ToString();
        DropDownList1.Text = nextpage.ToString();
    }

    void btn_first_Click(object sender, EventArgs e)
    {
        //按照获取的页数绑定相应的页数
        Repeater1.DataSource = new WarehouseDate().selects(count, 1);
        Repeater1.DataBind();
        //修改显示页数
        Label_Now.Text = "1";
        btn_next.Enabled = true;
        btn_prev.Enabled = false;
    }

    void btn_next_Click(object sender, EventArgs e)
    {
        //获取当前页，计算要看的下一页的页号;
        int nextpage = Convert.ToInt32(Label_Now.Text) + 1;

        //判断是否有下一页
        //if(nextpage>Max())
        //{
        //    return;
        //}
        if (nextpage >= Max())
        {
            btn_next.Enabled = false;
        }

        //按照获取的页数绑定相应的页数
        Repeater1.DataSource = new WarehouseDate().selects(count, nextpage);
        Repeater1.DataBind();
        btn_prev.Enabled = true;
        //修改显示页数
        Label_Now.Text = nextpage.ToString();
        DropDownList1.Text = nextpage.ToString();
    }

    void btn_lest_Click(object sender, EventArgs e)
    {
        //按照获取的页数绑定相应的页数
        Repeater1.DataSource = new WarehouseDate().selects(count, Max());
        Repeater1.DataBind();
        //修改显示页数
        Label_Now.Text = Max().ToString();
        btn_next.Enabled = false;
        btn_prev.Enabled = true;
        DropDownList1.Text = Max().ToString();
    }

    /// <summary>
    /// 获取到最大的页数
    /// </summary>
    /// <returns></returns>
    public int Max()
    {
        List<Warehouse> wlist = new WarehouseDate().select();
        double End2 = Convert.ToInt32(Math.Ceiling(wlist.Count / (count * 1.0)));
        int End = Convert.ToInt32(End2);
        return End;
    }

}

C#