一、用a标签和HTML的input普通按钮
<asp:Repeater ID="Repeater1" runat="server"> <HeaderTemplate><ul></HeaderTemplate> <FooterTemplate></ul></FooterTemplate> <ItemTemplate> <li><%# Eval("Name") %></li> </ItemTemplate> </asp:Repeater> </div> <a href="Default.aspx" runat="server" id="lnkPrev"> <input id="Button1" type="button" value="上一页" /></a> <a href="Default.aspx" runat="server" id="lnkNext"> <input id="Button2" type="button" value="下一页" /></a>
public partial class _Default : System.Web.UI.Page { private MyDBDataContext _Context = new MyDBDataContext(); private const int PAGESIZE = 3; private int _PageNo = 1; //当前的页号 //获取总页数 public int GetPageCount() { //取总行数 int rowsCount = _Context.Car.Count(); //算出总页数 int pageCount = (int)Math.Ceiling( 1.0*rowsCount / PAGESIZE); return pageCount; } public List<Car> GetPagedCar() { var query = _Context.Car.Skip(PAGESIZE*(_PageNo-1)).Take(PAGESIZE); return query.ToList(); } protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { if (Request["pn"] != null) { _PageNo = Convert.ToInt32(Request["pn"]); } Repeater1.DataSource = GetPagedCar(); Repeater1.DataBind(); if (_PageNo == 1) { lnkPrev.HRef = "Default.aspx?pn=1"; } else { lnkPrev.HRef = "Default.aspx?pn=" + (_PageNo - 1).ToString(); } if (_PageNo == GetPageCount()) { lnkNext.HRef = "Default.aspx?pn=" + GetPageCount().ToString(); } else { lnkNext.HRef = "Default.aspx?pn=" + (_PageNo + 1).ToString(); } } } }
二、用DropDownList和普通按钮
<form id="form1" runat="server"> <div> <asp:Repeater ID="Repeater1" runat="server"> <HeaderTemplate><ul></HeaderTemplate> <FooterTemplate></ul></FooterTemplate> <ItemTemplate> <li><%# Eval("Name") %></li> </ItemTemplate> </asp:Repeater> </div> <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="上一页" /> <asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="下一页" /> <asp:DropDownList ID="PageList" runat="server" AutoPostBack="True" OnSelectedIndexChanged="PageList_SelectedIndexChanged"> </asp:DropDownList> 一共<asp:Label ID="lblAll" runat="server" Font-Bold="True" ForeColor="Red"></asp:Label> 页,当前是第<asp:Label ID="lblNow" runat="server" Font-Bold="True" ForeColor="Red"></asp:Label> 页</form>
public partial class Default2 : System.Web.UI.Page { private MyDBDataContext _Context = new MyDBDataContext(); private const int PAGESIZE = 3; private int _PageNo = 1; //当前的页号 //获取总页数 public int GetPageCount() { //取总行数 int rowsCount = _Context.Car.Count(); //算出总页数 int pageCount = (int)Math.Ceiling(1.0 * rowsCount / PAGESIZE); return pageCount; } //获取指定页面记录 public List<Car> GetPagedCar() { _PageNo = Convert.ToInt32( PageList.SelectedValue); var query = _Context.Car.Skip(PAGESIZE * (_PageNo - 1)).Take(PAGESIZE); return query.ToList(); } protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { FillPageList(); ShowCars(); } } private void ShowCars() { Repeater1.DataSource = GetPagedCar(); Repeater1.DataBind(); //给当前页和一共几页赋值 lblNow.Text = PageList.SelectedValue; lblAll.Text = PageList.Items.Count.ToString(); } //在下拉列表里面获取总页数 private void FillPageList() { PageList.Items.Clear(); int pageCount = GetPageCount(); for (int i = 1; i <= pageCount; i++) { ListItem li = new ListItem(i.ToString(), i.ToString()); PageList.Items.Add(li); } } //点击下拉列表里的数字 protected void PageList_SelectedIndexChanged(object sender, EventArgs e) { ShowCars(); } //上一页 protected void Button1_Click(object sender, EventArgs e) { if (PageList.SelectedIndex == 0) { return; } PageList.SelectedIndex--; ShowCars(); } //下一页 protected void Button2_Click(object sender, EventArgs e) { if (PageList.SelectedIndex == GetPageCount() - 1) { return; } PageList.SelectedIndex++; ShowCars(); } }
时间: 2024-11-05 06:08:10