Webform 翻页查询.最主要理解这一句代码 return _Context.ChinaStates.Skip((nowpage

查询里的方法

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

/// <summary>
/// CarBF 的摘要说明
/// </summary>
public class CarBF
{
    private DataClassesDataContext _Context;
    public CarBF()
    {
        _Context = new DataClassesDataContext();
    }
    public List<Car> Select()
    {
        return _Context.Car.ToList();
    }
    public List<ChinaStates> Select1()
    {
        return _Context.ChinaStates.ToList();
    }
    //Take查询前五条
    public List<ChinaStates> Select2()
    {
        return _Context.ChinaStates.Take(5).ToList();
    }

    //nowpage是当前页，numbers是一页为几条数据.skip是跳过序列中指定数量的元素
    public List<ChinaStates> Select3(int nowpage,int numbers)
    {
        return _Context.ChinaStates.Skip((nowpage - 1) * numbers).Take(numbers).ToList();
    }
}

aspx.cs里的代码

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

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        //List<Car> list = new CarBF().Select();
        //Cache.Insert("aaa",list);
        if (!IsPostBack)
        {
            bangding(1, 5);
        }
    }
    //点击首页
    protected void LinkButton1_Click(object sender, EventArgs e)
    {
            bangding(1,5);       
   }
    public void bangding(int nowpage,int numbers)
    {
        List<ChinaStates> list = new CarBF().Select3(nowpage, numbers);
        Repeater1.DataSource = list;
        Repeater1.DataBind();
        TextBox1.Text = nowpage.ToString();
    }
    //点击尾页   
    protected void LinkButton2_Click(object sender, EventArgs e)
    {
        List<ChinaStates> list = new CarBF().Select1();
        if (list.Count%5==0)
        {
            bangding(list.Count/5,5);
        }
        else if (list.Count%5!=0)
        {
            bangding(list.Count/5+1,5);
        }
    }
    //点击上一页
    protected void LinkButton3_Click(object sender, EventArgs e)
    {
        int nowpage = Convert.ToInt32(TextBox1.Text);
        if (Convert.ToInt32(TextBox1.Text) > 1)
        {
            bangding(nowpage - 1, 5);
        }
        else
        {
            LinkButton3.Enabled = false;
        }
    }
    //点击下一页
    protected void LinkButton4_Click(object sender, EventArgs e)
    {
        List<ChinaStates> list = new CarBF().Select1();
        int count = list.Count / 5;
        if (Convert.ToInt32(TextBox1.Text) <= count)
        {
            int nowpage = Convert.ToInt32(TextBox1.Text);
            bangding(nowpage + 1, 5);
        }
        else
        {
            LinkButton4.Enabled = false;
        }
    }
    //当点击转到页的时候
    protected void LinkButton5_Click(object sender, EventArgs e)
    {
        List<ChinaStates> list = new CarBF().Select1();
        if (Convert.ToInt32(TextBox1.Text) > list.Count / 5 + 1)
        {
            TextBox1.Text = null;
            Literal1.Text = "页数超出范围";
        }
        else
        {
            int count = Convert.ToInt32(TextBox1.Text);
            bangding(count, 5);
        }
    }
}

效果图