ADO.NETDataList的分页功能

AllowCustomPaging获取或设置指示是否启用自定义分页的值。
AllowPaging 获取或设置指示是否启用分页的值。
Count 获取要从数据源使用的项数。
CurrentPageIndex 获取或设置当前页的索引。
DataSource 获取或设置数据源。
DataSourceCount 获取数据源中的项数。
FirstIndexInPage 获取页中的第一个索引。
IsCustomPagingEnabled获取一个值，该值指示是否启用自定义分页。
IsFirstPage 获取一个值，该值指示当前页是否是首页。
IsLastPage 获取一个值，该值指示当前页是否是最后一页。
IsPagingEnabled 获取一个值，该值指示是否启用分页。
IsReadOnly 获取一个值，该值指示数据源是否是只读的。
IsSynchronized 获取一个值，该值指示是否同步对数据源的访问（线程安全）。
PageCount 获取显示数据源中的所有项所需要的总页数。
PageSize 获取或设置要在单页上显示的项数。
VirtualCount 获取或设置在使用自定义分页时数据源中的实际项数。

 

<div>

        <asp:DataListID="DataList1" runat="server" DataKeyField="bid">

            <ItemTemplate>

                <tablewidth="700" border="1" cellspacing="0"cellpadding="0" >

                  <tr>

                    <tdwidth="205" rowspan="2"><imgsrc='<%# Eval("bpho")%>'/></td>

                    <tdwidth="489"><%# Eval("bname")%></td>

                  </tr>

                  <tr>

                    <tdheight="117"><%# Eval("binfo")%>

                        <asp:ButtonID="Button1" runat="server" Text="删除" 　CommandName="delete"/>

                        <asp:ButtonID="Button2" runat="server" Text="修改"CommandName="edit"/></td>

                  </tr>

                </table>

            </ItemTemplate>

        </asp:DataList></div>

        <div>

              <asp:LabelID="Label1" runat="server" Text="当前页:"></asp:Label>

              <asp:LabelID="Label2" runat="server" Text="1"Width="10px"></asp:Label>

              <asp:LabelID="Label3" runat="server" Text="总页数:"></asp:Label>

              <asp:LabelID="Label4" runat="server"></asp:Label>

              <asp:LinkButtonID="LinkButton1" runat="server" OnClick="LinkButton1_Click">首页</asp:LinkButton>

              <asp:LinkButtonID="LinkButton2" runat="server" OnClick="LinkButton2_Click">上一页</asp:LinkButton>

              <asp:LinkButtonID="LinkButton3" runat="server" OnClick="LinkButton3_Click">下一页</asp:LinkButton>

              <asp:LinkButtonID="LinkButton4" runat="server" OnClick="LinkButton4_Click">末页</asp:LinkButton>

        </div>

    </form>

 

using System;

using System.Data;

using System.Configuration;

using System.Collections;

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.Data;

using BLL;

 

namespace news

{

    public partial class WebForm1 : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {

            if(!this.IsPostBack)

            {

                ShowNews();

            }

        }

        private void ShowNews()

        {

            DataTable ArtTable =new B_books().GetBooks(); ;

            if (ArtTable != null && ArtTable.Rows.Count > 0)

            {

                PagedDataSource pds =new PagedDataSource();

                pds.DataSource = ArtTable.DefaultView;

 

                pds.AllowPaging = true;

                pds.PageSize = 3;

                int currentIndex =Convert.ToInt32(this.Label2.Text) - 1;

                pds.CurrentPageIndex = currentIndex;

                this.Label4.Text = pds.PageCount.ToString();

 

                this.LinkButton1.Enabled =true;

                this.LinkButton2.Enabled =true;

                this.LinkButton3.Enabled =true;

                this.LinkButton4.Enabled =true;

                if (currentIndex == 0)

                {

                    this.LinkButton1.Enabled =false;

                    this.LinkButton2.Enabled =false;

                }

                if (currentIndex == pds.PageCount - 1)

                {

                    this.LinkButton3.Enabled =false;

                    this.LinkButton4.Enabled =false;

                }

               

                DataList1.DataSource = pds;

                DataList1.DataBind();

            }

            else

            {

                DataList1.DataSource = null;

                DataList1.DataBind();

            }

        }

        protected void LinkButton1_Click(object sender, EventArgs e)

        {

            this.Label2.Text = "1";

            ShowNews();

        }

        protected void LinkButton2_Click(object sender, EventArgs e)

        {

            int temp = Convert.ToInt32(this.Label2.Text) - 1;

            Label2.Text = temp.ToString();

            ShowNews();

        }

        protected void LinkButton3_Click(object sender, EventArgs e)

        {

            int temp = Convert.ToInt32(this.Label2.Text) + 1;

            Label2.Text = temp.ToString();

            ShowNews();

        }

        protected void LinkButton4_Click(object sender, EventArgs e)

        {

            this.Label2.Text = this.Label4.Text;

            ShowNews();

        }  

    }

}