通常分頁有3種方法,分別是asp.net內建的資料顯示空間如GridView等內建的分頁,第三方分頁控制項如aspnetpager,預存程序分頁等。這裡分別做總結。
第一種:使用GridView內建分頁,這種是最簡單的分頁方法。
前台的方法
<asp:GridView ID="GridView1" AllowPaging="true" runat="server" onpageindexchanging="GridView1_PageIndexChanging" PageSize="3"> </asp:GridView>
後台方法:
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using JXSoft.TicketManage.Model; using JXSoft.TicketManage.BLL; using System.Text.RegularExpressions; using System.Data; namespace JXSoft.TicketManage.Web { public partial class Test : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if(!IsPostBack) { BindData(); } } protected void BindData() { DataTable dt=new DataTable(); dt.Columns.Add("ID"); dt.Columns.Add("Name"); for (int i = 0; i < 10;i++ ) { dt.Rows.Add(i.ToString(), i.ToString()); } this.GridView1.DataSource = dt; this.GridView1.DataBind(); } protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e) { this.GridView1.PageIndex = e.NewPageIndex; BindData(); } } }
第二種:使用個人化顯示的AspNetPager.dll進行分頁
此處需要添加aspnetpager.dll的引用
前台:
<form id="form1" runat="server"> <div> <asp:GridView ID="GridView1" runat="server" > </asp:GridView> <webdiyer:AspNetPager ID="AspNetPager1" runat="server" CustomInfoHTML="第%CurrentPageIndex%頁,共%PageCount%頁,每頁%PageSize%條" FirstPageText="首頁" LastPageText="尾頁" LayoutType="Table" NextPageText="下一頁" onpagechanging="AspNetPager1_PageChanging" PageIndexBoxType="DropDownList" PagingButtonLayoutType="Span" PrevPageText="上一頁" ShowCustomInfoSection="Left" ShowPageIndexBox="Always" SubmitButtonText="Go" PageSize="4" TextAfterPageIndexBox="頁" TextBeforePageIndexBox="轉到"> </webdiyer:AspNetPager> </div> </form>
後台:
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using JXSoft.TicketManage.Model; using JXSoft.TicketManage.BLL; using System.Text.RegularExpressions; using System.Data; namespace JXSoft.TicketManage.Web { public partial class Test : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if(!IsPostBack) { BindData(); } } protected void BindData() { DataTable dt=new DataTable(); dt.Columns.Add("ID"); dt.Columns.Add("Name"); for (int i = 0; i < 10;i++ ) { dt.Rows.Add(i.ToString(), i.ToString()); } DataSet ds = new DataSet(); ds.Tables.Add(dt); Pager(this.GridView1, this.AspNetPager1, ds); } protected void Pager(GridView dl, Wuqi.Webdiyer.AspNetPager anp, System.Data.DataSet dst) { PagedDataSource pds = new PagedDataSource(); pds.DataSource = dst.Tables[0].DefaultView; pds.AllowPaging = true; anp.RecordCount = dst.Tables[0].DefaultView.Count; pds.CurrentPageIndex = anp.CurrentPageIndex - 1; pds.PageSize = anp.PageSize; dl.DataSource = pds; dl.DataBind(); } protected void AspNetPager1_PageChanging(object src, Wuqi.Webdiyer.PageChangingEventArgs e) { AspNetPager1.CurrentPageIndex = e.NewPageIndex; BindData(); } } }
第三種:使用AspNetPager結合預存程序進行分頁
這種方法分頁稍微複雜一些,但是可以應付比較大的資料量。
前台:
<asp:GridView ID="GridView1" runat="server" CssClass="GridTable" AutoGenerateColumns="false" onrowdatabound="GridView1_RowDataBound" > </asp:GridView> <webdiyer:AspNetPager ID="AspNetPager1" runat="server" CustomInfoHTML="第%CurrentPageIndex%頁,共%PageCount%頁,每頁%PageSize%條" FirstPageText="首頁" LastPageText="尾頁" LayoutType="Table" NextPageText="下一頁" onpagechanged="AspNetPager1_PageChanged" PageIndexBoxType="DropDownList" PagingButtonLayoutType="Span" PrevPageText="上一頁" ShowCustomInfoSection="Left" ShowPageIndexBox="Always" SubmitButtonText="Go" PageSize="4" TextAfterPageIndexBox="頁" TextBeforePageIndexBox="轉到"> </webdiyer:AspNetPager>
後台:
//Binder 方法中需要傳遞aspnetpager的兩個屬性 protected void DataBind(){ DataSet ds = reportQueryBLL.GetTcikDetailReport(this.txtStartDate.Text,this.txtEndDate.Text,int.Parse( this.DropDownListPartment1.SelectedValue), this.txtPayPerson1.Text,this.txtTicketNum.Text,this.txtTicketNo.Text, AspNetPager1.StartRecordIndex,AspNetPager1.EndRecordIndex);//注意最後兩個參數是aspnetpager的屬性。 this.GridView1.DataSource = ds; this.GridView1.DataBind(); } //分頁控制項的頁索引變化事件 protected void AspNetPager1_PageChanged(object src, EventArgs e) { BindDetailReportToGv(); } //page_base中需要載入首次的資料條數 DataSet ds = reportQueryBLL.GetDetail(this.txtStartDate.Text, this.txtEndDate.Text, int.Parse(this.DropDownListPartment1.SelectedValue), this.txtPayPerson1.Text, this.txtTicketNum.Text, this.txtTicketNo.Text); this.AspNetPager1.RecordCount = ds.Tables[0].Rows.Count; BindDetailReportToGv();
這裡用的預存程序比較複雜,因為SQL語句沒有能夠放到視圖中,也無法直接從表中查出結果,這個預存程序有點變態,如果有朋友看到了,希望能指點一下。
其實預存程序的核心在於:
Create PROCEDURE [dbo].[P_GetPagedOrders2005] (@startIndex INT, @endindex INT ) AS select * from (SELECT ROW_NUMBER() OVER(ORDER BY IPid DESC) AS rownum, [IPid],[IPFrom],[IPTo],[IPLocation],[IPCity],[IPToNumber],[IPFromNumber] from IPInfo) as U WHERE rownum between @startIndex and @endIndex GO