Linq to shql 自定义分页示例

前台代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

后台代码：

using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml.Linq;

public partial class _Default : System.Web.UI.Page
{
    DataConnectionDataContext db = new DataConnectionDataContext();
    int pagesize = 5;//每页显示多少条记录
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            ViewState["pageindex"] = 0;
            newsbind();
            Label1.Text = num().ToString() + "记录";
            Label2.Text = pagecount(pagesize).ToString() + "页";
        }
    }
    //总记录数
    private int num()
    {
        int count=from n db.News.Count();

        return count;
    }
    //根据pagesize计算总页数
    private int pagecount(int x)
    {
        int count = (num() + x) / x;
        return count;
    }

    //绑定GridView
    private void newsbind()
    {
        int pageindex = Convert.ToInt32(ViewState["pageindex"].ToString());

        this.GridView1.DataSource = (from n in db.News
                                     orderby n.Id descending
                                     select new { n.Id, n.NewTitle, n.NewContext, n.NewImage, n.NewDate }).Skip(pagesize * pageindex).Take(pagesize);
        this.GridView1.DataBind();

        this.LinkButton2.Enabled = false;
        this.LinkButton3.Enabled = false;
        if (Convert.ToInt32(ViewState["pageindex"].ToString()) > 0)
        {
            this.LinkButton2.Enabled = true;
        }
        if (Convert.ToInt32(ViewState["pageindex"].ToString()) < pagecount(pagesize) -1 )
        {
            this.LinkButton3.Enabled = true;
        }
    }
    protected void LinkButton1_Click(object sender, EventArgs e)
    {
        ViewState["pageindex"] = 0;
        this.newsbind();
    }
    protected void LinkButton2_Click(object sender, EventArgs e)
    {
        ViewState["pageindex"] = Convert.ToInt32(ViewState["pageindex"].ToString()) - 1;
        this.newsbind();
    }
    protected void LinkButton3_Click(object sender, EventArgs e)
    {
        ViewState["pageindex"] = Convert.ToInt32(ViewState["pageindex"].ToString()) + 1;
        this.newsbind();
    }
    protected void LinkButton4_Click(object sender, EventArgs e)
    {
        ViewState["pageindex"] = pagecount(pagesize) - 1;
        this.newsbind();
    }
}

现在正在看linq 的分页，可是发现，怎么不能够设置我显示哪页啊。一直是显示我分页的最后有个页的内容。

代码如下

var q =( from c in textuser where c.id >0 orderby c.id descending select new { ID = c.id, Sex = c.Sex == 1 ? "男" : "女", c.UserName }).ToList().Take

(3).Skip(0);
GridView1.DataSource = q;
GridView1.DataBind();

如果我要想显示，第一页的内容怎么显示。

顺便问下。我现在的理解是 Take 设置页面记录数，Skip 是从哪条记录开始显示，不知道我这样理解正确不？
---
int _page = 1;
int _pagesize = 40;
var q =( from c in textuser where c.id >0 orderby c.id descending select new { ID = c.id, Sex = c.Sex == 1 ? "男" : "女", c.UserName });
GridView1.DataSource =q.Skip((_page - 1) * _pagesize).Take(_pagesize).ToList();
GridView1.DataBind();