gridview分页

最新推荐文章于 2025-06-09 14:57:15 发布

转载最新推荐文章于 2025-06-09 14:57:15 发布 · 749 阅读

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#gridview分页

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本文详细介绍了如何在GridView中实现分页功能，并通过事件处理动态调整分页索引，确保用户界面与数据源的一致性。文章还提供了一个通用的分页模板，包括分页链接和跳转功能，使得分页操作更加直观和便捷。

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要在GridView中加入

//实现分页

AllowPaging="true"

//一页数据10行

PageSize="10"

// 分页时触发的事件
OnPageIndexChanging="gvwDesignationName_PageIndexChanging"

在服务器事件里

protected void gvwDesignationName_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        gvwDesignationName.PageIndex=e.newIndex;

        bingDesignatioonName();
    }

这里我给出一个通用显示分页的模板（网上搜的，自己给出注释)

<PagerTemplate>
                当前第:
                //((GridView)Container.NamingContainer)就是为了得到当前的控件
                <asp:Label ID="LabelCurrentPage" runat="server" Text="<%# ((GridView)Container.NamingContainer).PageIndex + 1 %>"></asp:Label>
                页/共:
                //得到分页页面的总数
                <asp:Label ID="LabelPageCount" runat="server" Text="<%# ((GridView)Container.NamingContainer).PageCount %>"></asp:Label>
                页
                 //如果该分页是首分页，那么该连接就不会显示了.同时对应了自带识别的命令参数CommandArgument
                <asp:LinkButton ID="LinkButtonFirstPage" runat="server" CommandArgument="First" CommandName="Page"
                    Visible='<%#((GridView)Container.NamingContainer).PageIndex != 0 %>'>首页</asp:LinkButton>
                <asp:LinkButton ID="LinkButtonPreviousPage" runat="server" CommandArgument="Prev"
                    CommandName="Page" Visible='<%# ((GridView)Container.NamingContainer).PageIndex != 0 %>'>上一页</asp:LinkButton>
               //如果该分页是尾页，那么该连接就不会显示了
                <asp:LinkButton ID="LinkButtonNextPage" runat="server" CommandArgument="Next" CommandName="Page"
                    Visible='<%# ((GridView)Container.NamingContainer).PageIndex != ((GridView)Container.NamingContainer).PageCount - 1 %>'>下一页</asp:LinkButton>
                <asp:LinkButton ID="LinkButtonLastPage" runat="server" CommandArgument="Last" CommandName="Page"
                    Visible='<%# ((GridView)Container.NamingContainer).PageIndex != ((GridView)Container.NamingContainer).PageCount - 1 %>'>尾页</asp:LinkButton>
                转到第
                <asp:TextBox ID="txtNewPageIndex" runat="server" Width="20px" Text='<%# ((GridView)Container.Parent.Parent).PageIndex + 1 %>' />页
                //这里将CommandArgument即使点击该按钮e.newIndex 值为3 
                <asp:LinkButton ID="btnGo" runat="server" CausesValidation="False" CommandArgument="-2"
                    CommandName="Page" Text="GO" />
            </PagerTemplate>

对应该事件中代码为

protected void gvwDesignationName_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        // 得到该控件
        GridView theGrid = sender as GridView;
        int newPageIndex = 0;
        if (e.NewPageIndex==-3)
        {
            //点击了Go按钮
            TextBox txtNewPageIndex = null;

            //GridView较DataGrid提供了更多的API，获取分页块可以使用BottomPagerRow 或者TopPagerRow，当然还增加了HeaderRow和FooterRow
            GridViewRow pagerRow = theGrid.BottomPagerRow;
            
            if (pagerRow != null)
            {
                //得到text控件
                txtNewPageIndex = pagerRow.FindControl("txtNewPageIndex") as TextBox;    
            }
            if ( txtNewPageIndex!= null)
            {
                //得到索引
                newPageIndex = int.Parse(txtNewPageIndex.Text) - 1; 
            }
        }
        else
        { 
            //点击了其他的按钮
            newPageIndex = e.NewPageIndex;
        }
        //防止新索引溢出
        newPageIndex = newPageIndex < 0 ? 0 : newPageIndex;
        newPageIndex = newPageIndex >= theGrid.PageCount ? theGrid.PageCount - 1 : newPageIndex;
        
        //得到新的值
        theGrid.PageIndex = newPageIndex;
        
         //重新绑定
        bingDesignatioonName();
    }

my eg:

(1)aspx:

<%@ Page Language="C#" AutoEventWireup="true" Inherits="SJTSoft.OPVTI.Web.Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:GridView runat="server" ID="gvTest" AllowPaging="true" AutoGenerateColumns="false"
            DataKeyNames="InfoId" PageSize="5">
            <Columns>
                <asp:TemplateField HeaderText="车牌号码">
                    <ItemStyle HorizontalAlign="center" />
                    <ItemTemplate>
                        <asp:Label ID="lblVehicleNum" runat="server" Text='<%# Eval("VehicleNumColor")%>'></asp:Label> 
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="危险品品名">
                    <ItemStyle HorizontalAlign="center" />
                    <ItemTemplate>
                        <asp:Label ID="lblDangerName" runat="server" Text='<%# Eval("DangerName")%>'></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField> 
                <asp:TemplateField HeaderText="满载">
                    <ItemStyle HorizontalAlign="center" />
                    <ItemTemplate>
                        <asp:Label ID="lblIsFull" runat="server" Text='<%# Eval("IsFullName")%>'></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="装载/缷载">
                    <ItemStyle HorizontalAlign="center" />
                    <ItemTemplate>
                        <asp:Label ID="lblLoadUnload" runat="server" Text='<%# Eval("LoadUnloadName")%>'></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField> 
            </Columns>
            <PagerTemplate>
                当前第: 
                <asp:Label ID="LabelCurrentPage" runat="server" Text="<%# ((GridView)Container.NamingContainer).PageIndex + 1 %>"></asp:Label>
                页/共: 
                <asp:Label ID="LabelPageCount" runat="server" Text="<%# ((GridView)Container.NamingContainer).PageCount %>"></asp:Label>
                页 
                <asp:LinkButton ID="LinkButtonFirstPage" runat="server" CommandArgument="First" CommandName="Page"
                    Visible='<%#((GridView)Container.NamingContainer).PageIndex != 0 %>'>首页</asp:LinkButton>
                <asp:LinkButton ID="LinkButtonPreviousPage" runat="server" CommandArgument="Prev"
                    CommandName="Page" Visible='<%# ((GridView)Container.NamingContainer).PageIndex != 0 %>'>上一页</asp:LinkButton>
               
                <asp:LinkButton ID="LinkButtonNextPage" runat="server" CommandArgument="Next" CommandName="Page"
                    Visible='<%# ((GridView)Container.NamingContainer).PageIndex != ((GridView)Container.NamingContainer).PageCount - 1 %>'>下一页</asp:LinkButton>
                <asp:LinkButton ID="LinkButtonLastPage" runat="server" CommandArgument="Last" CommandName="Page"
                    Visible='<%# ((GridView)Container.NamingContainer).PageIndex != ((GridView)Container.NamingContainer).PageCount - 1 %>'>尾页</asp:LinkButton>
                转到第
                <asp:TextBox ID="txtNewPageIndex" runat="server" Width="20px" Text='<%# ((GridView)Container.Parent.Parent).PageIndex + 1 %>' />页
                
                <asp:LinkButton ID="btnGo" runat="server" CausesValidation="False" CommandArgument="-2"
                    CommandName="Page" Text="GO" />
            </PagerTemplate>
        </asp:GridView>
    </div>
    <div>
        <asp:Button Text="查询" ID="btnS" runat="server" />
    </div>
    </form>
</body>
</html>

（2）cs:

using System;
using System.Collections.Generic;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.Security;
using SJTSoft.Core; 
using SJTSoft.Core.Util;
using SJTSoft.OPVTI.BLL;
using SJTSoft.OPVTI.Model;
using SJTSoft.Core.BLL;

namespace SJTSoft.OPVTI.Web
{
    public class Default : BasePage
    {
        protected GridView gvTest;

        protected Button btnS; 

        protected void Page_Init(object sender, EventArgs e)
        {
            btnS.Click += new EventHandler(btnS_Click);
            gvTest.PageIndexChanging += new GridViewPageEventHandler(gvTest_PageIndexChanging);
        }

        void gvTest_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            // 得到该控件
            GridView theGrid = sender as GridView;
            int newPageIndex = 0;
            if (e.NewPageIndex == -3)
            {
                //点击了Go按钮
                TextBox txtNewPageIndex = null;

                //GridView较DataGrid提供了更多的API，获取分页块可以使用BottomPagerRow 或者TopPagerRow，当然还增加了HeaderRow和FooterRow
                GridViewRow pagerRow = theGrid.BottomPagerRow;

                if (pagerRow != null)
                {
                    //得到text控件
                    txtNewPageIndex = pagerRow.FindControl("txtNewPageIndex") as TextBox;
                }
                if (txtNewPageIndex != null)
                {
                    //得到索引
                    newPageIndex = int.Parse(txtNewPageIndex.Text) - 1;
                }
            }
            else
            {
                //点击了其他的按钮
                newPageIndex = e.NewPageIndex;
            }
            //防止新索引溢出
            newPageIndex = newPageIndex < 0 ? 0 : newPageIndex;
            newPageIndex = newPageIndex >= theGrid.PageCount ? theGrid.PageCount - 1 : newPageIndex;

            //得到新的值
            theGrid.PageIndex = newPageIndex;

            //重新绑定
            PracInfoDataBind();
        }

        void btnS_Click(object sender, EventArgs e)
        {
            PracInfoDataBind();
        }
        
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                PracInfoDataBind();
            }
        }
         
        private void PracInfoDataBind()
        {
            IList<VehicleDgTransInfoHis> qr = BaseBLLFactory.CreateService<VehicleDgTransInfoHisService>().GetVehicleDgTransInfoHisList();
            gvTest.DataSource = qr; 
            gvTest.DataBind(); 
        }

    }
}