Net Core教程

asp.net layui数据表格数据交互实现动态数据表格 asp.net 真分页

本文主要是介绍asp.net layui数据表格数据交互实现动态数据表格 asp.net 真分页,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!

1.引用layui.css  layui.js

2.前台页面 AssetsListNew.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="AssetsListNew.aspx.cs" Inherits="DQPA.PAManager.AssetsListNew" %>

<!DOCTYPE html>
<html>
<head runat="server">
    <meta charset="utf-8">
    <title>点趣-资产列表</title>
    <meta name="renderer" content="webkit">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <link href="css/style1.css" rel="stylesheet" />
    <link href="css/ace.min.css" rel="stylesheet" />
    <link href="css/bootstrap.min.css" rel="stylesheet" />
    <link href="css/codemirror.css" rel="stylesheet" />
    <link href="css/font-awesome.min.css" rel="stylesheet" />
    <link href="layui/css/layui.css" rel="stylesheet" />

    <script src="js/jquery-1.9.1.min.js"></script>
    <script src="js/bootstrap.min.js"></script>
    <script src="layui/layui.js"></script>
    <style>
        #anone1, #anone2:link {
            font-size: 14px;
            color: #fff;
            text-decoration: none;
        }
        #anone1, #anone2:visited {
            font-size: 14px;
            color: #fff;
            text-decoration: none;
        }
        #anone1, #anone2:hover {
            font-size: 14px;
            color: #fff;
            text-decoration: none;
        }
        /*link1,link1:link,link1:visited,link1:hover{font-size:14px;color:#fff;text-decoration: none;}*/
    </style>
</head>
<body>
    <form id="form1" class="layui-form pagediv" runat="server" style="margin-top: 5px">

        <div class="search_style">
            <ul class="search_content clearfix" style="padding-left: 2rem;">
                <li>
                    <label class="l_f">导入:</label>
                    <span class="add_name" style="float: right;">
                        <a href="AssetsListNew.aspx?action=down" id="anone1" class=" layui-btn ">下载模板</a>
                    </span>

                    <li>
                        <input type="file" id="fileUpload" runat="server" class="btn btn-warning" style="background-color: #abbac3!important; border-color: #abbac3;" />
                    </li>
                <li>
                    <button type="submit" class=" layui-btn" runat="server" onserverclick="btnImport_Click">导入</button>
                </li>
            </ul>
        </div>
        <div class="search_style">
            <ul class="search_content clearfix" style="padding-left: 2rem;">
                <li>
                    <label class="l_f">搜索项:</label>
                    <span class="add_name" style="float: right;">
                        <select id="sSearch" runat="server">
                            <option value="">请选择</option>
                            <option value="Number">编号</option>
                            <option value="type">类型</option>
                            <option value="brand">品牌</option>
                            <option value="BelongName">使用人</option>
                        </select>
                    </span>
                    <input type="text" hidden="hidden" runat="server" id="hidSearch" /></li>
                <li>
                    <input type="text" runat="server" id="txtCondition" class="layui-input" placeholder="输入搜索值" onkeyup="value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5\ ]/g,'')" onpaste="value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5\ ]/g,'')" oncontextmenu="value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5\ ]/g,'')" autocomplete="off" style="width: 180px" /></li>
                <li>
                    <label class="l_f">购买时间:</label>
                </li>
                <li>
                    <input class="layui-input " id="start" runat="server" style="margin-left: 10px;" readonly="readonly" placeholder="开始时间" autocomplete="off" />
                </li>
                <li>
                    <label class="l_f">&nbsp&nbsp&nbsp&nbsp&nbsp---</label>
                </li>
                <li>
                    <input class="layui-input " id="end" runat="server" style="margin-left: 10px;" readonly="readonly" placeholder="结束时间" autocomplete="off" />
                </li>
                <li>
                    <button class="layui-btn" type="button" id="btnSearch" onclick="searchList()"><i class="layui-icon">&#xe615;</i>查询</button>
                    <a href="AssetsListNewAdd.aspx" id="anone2" class="layui-btn"><i class="layui-icon">&#xe608;</i>新增</a>
                    <%--<button class="layui-btn" data-type="reload"><i class="layui-icon">&#xe608;</i>添加</button>--%>
                </li>
                <%--<li style="width: 90px;">
                                <button type="submit" id="btnSearch" class="btn_search">查询</button></li>--%>
            </ul>
        </div>
        <script type="text/javascript">
            function searchList() {
                if ($("#start").val() != null && $("#end").val() != null) {
                    const _PlanEndTime = new Date($("#start").val());
                    const _PlanStartTime = new Date($("#end").val());
                    if (_PlanEndTime.getTime() > _PlanStartTime.getTime()) {
                        alert("开始时间不能大于结束时间!");
                        return false;
                    }
                }
                salesf(encodeURI('AssetsListNew.aspx?action=list&selectc=' + $("#sSearch").val() + '&txtselect=' + $("#txtCondition").val() + '&start=' + $("#start").val() + '&end=' + $("#end").val() + ''));
            }
        </script>
        <%--<script type="text/html" id="toolbarDemo">
            <div class="layui-inline" style="float: right">
                <a class="layui-btn layui-btn-sm" lay-event="search" style="text-decoration: none"><i class="layui-icon">&#xe615;</i>查询</a>
                <a class="layui-btn layui-btn-sm" lay-event="add" style="text-decoration: none"><i class="layui-icon">&#xe608;</i> 添加</a>
                <a class="layui-btn layui-btn-sm" lay-event="delele" style="display: none;"><i class="layui-icon">&#xe601;</i> 导出</a>
            </div>
        </script>--%>
        <table class="layui-hide" id="test" lay-filter="demo"></table>
        <div id="laypage" style="float: right;"></div>
        <script type="text/html" id="barDemo">
            <a class="layui-btn layui-btn-xs" lay-event="make" data-type="auto" style="margin-left: 0; text-decoration: none;">二维码</a>
            <a class="layui-btn layui-btn-xs" lay-event="edit" data-type="auto" style="margin-left: 0; text-decoration: none;">修改</a>
            <a class="layui-btn layui-btn-danger layui-btn-xs" style="margin-left: 0; text-decoration: none;" lay-event="del">删除</a>
        </script>
        <script type="text/javascript">
            var sortName = "id";
            var sortType = "desc";
            var pages = 1;
            var rows = 10;
            var total;    //总条数
            var title;
            var amtype;

            $(document).ready(function () {
                salesf('AssetsListNew.aspx?action=list');
                layui.use('laydate', function () {
                    var laydate = layui.laydate;
                    //自定义格式
                    laydate.render({
                        elem: '#start',
                        format: 'yyyy-MM-dd',
                        trigger: 'click'	//日期框只能点击选择,不能手动输入
                    });
                    laydate.render({
                        elem: '#end',
                        format: 'yyyy-MM-dd',
                        trigger: 'click'	//日期框只能点击选择,不能手动输入
                    });
                });
            });

            //salesf('table.aspx?action=list');
            function salesf(url) {
                layui.use(['table', 'laypage', 'form', 'layer'], function () {
                    var table = layui.table,
                        laypage = layui.laypage,
                        form = layui.form,
                        layer = layui.layer;

                    var tableOptions = {
                        elem: '#test'
                        , url: url
                        , height: 470
                        //, toolbar: '#toolbarDemo'
                        , id: 'idTest'
                        , defaultToolbar: []
                        , method: 'POST' //方式
                        , page: false //是否分页
                        , where: {
                            page: pages,
                            rows: rows,
                            sort: sortName,
                            order: sortType
                        } //请求后端接口的条件,该处就是条件错误点,按照官方给出的代码示例,原先写成了 where: { key : { type: "all" } },结果并不是我想的那样,如此写,key 将是后端的一个类作为参数,里面有 type 属性,如果误以为 key 是 Layui 提供的格式,那就大错特错了
                        , cols: [[
                            { field: 'row', width: 80, title: '序号', sort: true }
                            , { field: 'number', width: 120, title: '资产编号' }
                            , { field: 'type', width: 80, title: '类型', sort: true }
                            , { field: 'brand', width: 80, title: '品牌' }
                            , { field: 'ismac', width: 80, title: 'MAC' }
                            , { field: 'videocard', title: '显卡' }
                            , { field: 'ram', width: 80, title: '内存', sort: true }
                            , { field: 'rigiddisk', width: 80, title: '硬盘', sort: true }
                            , { field: 'cpu', width: 80, title: 'CPU' }
                            , { field: 'purchasetime1', width: 120, title: '购买时间', sort: true }
                            , { field: 'monetary', minWidth: 120, title: '购买金额' }
                            , { field: 'size', width: 80, title: '尺寸', sort: true }
                            , { field: 'department', width: 120, title: '部门' }
                            , { field: 'belongname', width: 80, title: '使用人' }
                            , { field: 'position', title: '位置', minWidth: 150, sort: true }
                            , { field: 'prodirection', width: 80, title: '产品去向', sort: true }
                            , { field: 'sellingprice', minWidth: 120, title: '产品已售金额' }
                            , { field: 'remark', width: 135, title: '产品去向备注', sort: true }
                            , { field: 'auditter', fixed: 'right', title: '操作', minWidth: 180, align: 'center', templet: '#barDemo' }
                        ]]
                        , parseData: function (res) {
                            return {
                                "code": "0",
                                "msg": "cg",
                                "count": res.total,
                                "data": res.rows
                            };
                        }
                        , done: function (res, curr, count) {
                            laypage.render({
                                elem: 'laypage',
                                count: count,
                                curr: pages,
                                limit: rows,
                                layout: ['prev', 'page', 'next', 'skip', 'count', 'limit'],
                                jump: function (obj, first) {
                                    if (!first) {
                                        pages = obj.curr;
                                        rows = obj.limit;//$("#sSearch option:selected").val()
                                        salesf(encodeURI('AssetsListNew.aspx?action=list&selectc=' + $("#sSearch").val() + '&txtselect=' + $("#txtCondition").val() + '&start=' + $("#start").val() + '&end=' + $("#end").val() + ''));
                                    }
                                }
                            });
                            form.render("select");
                        }

                    };
                    table.render(tableOptions);

                    //监听行工具条
                    table.on('tool(demo)', function (obj) {
                        var data = obj.data;
                        if (obj.event === 'make') {
                            location.href = "AssetsListNew.aspx?action=make&id=" + data.id + "";
                            //alert("可以生成" + data.id + "的二维码")
                            //make(table, obj.data.id);
                            //layer.msg('ID:' + data.id + ' 的查看操作');
                        } else if (obj.event === 'del') {
                            del(table, obj.data.id);
                        }
                        else if (obj.event === 'edit') {
                            location.href = "AssetsListNewAdd.aspx?action=edit&id=" + data.id + "";
                            //EditData1('auto', "id", "修改", "PAManager/AssetsAdd.aspx?action=edit&id=" + data.id + "", '75%', '80%');
                            //EditData1('auto', "id", "修改", "../DiBaoGuanLi/60_Add.aspx?idcard=" + data.idcard + "", '75%', '80%');
                        }
                    });

                    //单条删除操作
                    function del(table, id) {
                        if (confirm("确定删除?")) {
                            $.post("AssetsListNew.aspx?action=delete&id=" + id, {}, function (data) {

                                var res = JSON.parse(data);
                                if (res.code == 0) {
                                    alert("删除成功!");
                                    salesf(encodeURI('AssetsListNew.aspx?action=list&selectc=' + $("#sSearch").val() + '&txtselect=' + $("#txtCondition").val() + '&start=' + $("#start").val() + '&end=' + $("#end").val() + ''));
                                }
                                else {
                                    alert("删除失败!");
                                    salesf(encodeURI('AssetsListNew.aspx?action=list&selectc=' + $("#sSearch").val() + '&txtselect=' + $("#txtCondition").val() + '&start=' + $("#start").val() + '&end=' + $("#end").val() + ''));
                                }
                            });
                        }
                    }

                    //单条生成二维码操作
                    function make(table, id) {
                        $.post("AssetsListNew.aspx?action=make&id=" + id, {}, function (data) {
                            //var res = JSON.parse(data);
                            //if (res.code == 0) {
                            //    alert("成功生成二维码!");
                            //    /*salesf(encodeURI('AssetsListNew.aspx?action=list&selectc=' + $("#sSearch").val() + '&txtselect=' + $("#txtCondition").val() + '&start=' + $("#start").val() + '&end=' + $("#end").val() + ''));*/
                            //}
                            //else {
                            //    alert("生成二维码失败!");
                            //    /*salesf(encodeURI('AssetsListNew.aspx?action=list&selectc=' + $("#sSearch").val() + '&txtselect=' + $("#txtCondition").val() + '&start=' + $("#start").val() + '&end=' + $("#end").val() + ''));*/

                            //};
                        })
                    }

                    //添加人员弹框
                    function EditData1(offset, id, title, src, height, width) {
                        top.layer.config({
                            extend: 'myskin/style.css', //加载新皮肤
                            skin: 'demo-class' //一旦设定,所有弹层风格都采用此主题。
                        }).open({
                            type: 2
                            , offset: offset //具体配置参考:http://www.layui.com/doc/modules/layer.html#offset
                            , id: id //防止重复弹出
                            , title: title
                            , area: [height, width]

                            , content: src
                            //, btn: '关闭全部'
                            , btnAlign: 'c' //按钮居中
                            , shade: 0 //不显示遮罩
                            , yes: function () {
                                parent.layer.closeAll()
                            }
                            , cancel: function (index, layero) {

                                salesf('table.aspx?action=list');
                            }
                        });
                    }

                    头工具栏事件
                    //table.on('toolbar(demo)', function (obj) {

                    //    switch (obj.event) {
                    //        case 'search':


                    //            salesf(encodeURI('table.aspx?action=list&selectc=' + $("#sSearch option:selected").val() + '&txtselect=' + $("#txtCondition").val() + '&start=' + $("#start").val() + '&end=' + $("#end").val() + ''));

                    //            break;
                    //        case 'add':
                    //            window.location.href = "tableadd.aspx";
                    //            break;
                    //        //case 'delele':
                    //        //    //var data = checkStatus.data;

                    //        //    var delids = "";
                    //        //    $.each(data, function (i, item) {
                    //        //        if (delids) {
                    //        //            delids += ","
                    //        //        }
                    //        //        delids += item.amid;
                    //        //    });
                    //        //    if (!delids) {
                    //        //        alert("没有选中的数据");
                    //        //        return false;
                    //        //    }

                    //        //    var r = confirm("确定要删除记录吗?")
                    //        //    if (r == true) {
                    //        //        $.post("table.aspx?action=delete&delids=" + delids, {}, function (data) {
                    //        //            if (data.d != "") {
                    //        //                salesf('table.aspx?action=load&type=' + typeval);
                    //        //            } else {
                    //        //            }
                    //        //        });
                    //        //    }
                    //        //    break;
                    //    };
                    //});
                });
            }
        </script>
    </form>
</body>
</html>

3.后台代码  AssetsListNew.aspx.cs

using Common;
using DAL;
using DQPA.BLL;
using DQPA.IBLL;
using DQPA.MODEL;
using Gma.QrCodeNet.Encoding;
using Gma.QrCodeNet.Encoding.Windows.Render;
using Maticsoft.DBUtility;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Data;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace DQPA.PAManager
{
    public partial class AssetsListNew : System.Web.UI.Page
    {


        protected void Page_Load(object sender, EventArgs e)
        {
            Auxiliary aux = new Auxiliary();
            if (Session["UId"] == null || string.IsNullOrEmpty(Server.UrlDecode(Session["UId"].ToString())))
            {
                Response.Redirect("UserLogin.aspx");
                return;
            }
            if (!IsPostBack)
            {
                var action = Request.QueryString["action"];
                var id = Request.QueryString["id"];
                switch (action)
                {
                    case "list":
                        loadAssets();
                        break;
                    case "delete":
                        DelAssets();
                        break;
                    case "upload":
                        //var fileup = test8.PostedFile;
                        //Upload(fileup);
                        break;
                    case "make":
                        MakeORCode(id);
                        break;
                    case "down":
                        DownloadOperation();
                        break;
                    default:
                        break;
                }
            }
            //var a = hidSearch.Value;
            //var b = txtCondition.Value;
            //var download = Request.QueryString["down"];
            //if (download != null)
            //{
            //    var downtype = download.ToString();
            //    switch (downtype)
            //    {
            //        case "1":
            //            DownloadOperation();
            //            break;
            //        default:
            //            break;
            //    }
            //}
        }
        protected void loadAssets()
        {
            try
            {
                //DataTable dt = new DataTable();
                int count;
                StringBuilder strwhere = new StringBuilder();
                IAssetsBll assetsBll = new AssetsBll();
                strwhere.Append(" 1=1");//and ylyid in (select id from M_yanglaoyuan where type ='" + type + "') 
                strwhere.Append(" and ISNULL(IsDelete,0) <> 1 ");
                //if (!string.IsNullOrEmpty(txtCondition.Value))
                //{
                //    where.Append(" and Number like '%" + txtCondition.Value + "%' or type like '%" + txtCondition.Value + "%' or brand  like '%" + txtCondition.Value + "%' ");
                //}
                var searchC = Request.QueryString["selectc"];

                var txtsearch = Request.QueryString["txtselect"];

                var startTime = Request.QueryString["start"];

                var endTime = Request.QueryString["end"];
                if (searchC != null && !string.IsNullOrEmpty(searchC))
                {
                    if (txtsearch != null && !string.IsNullOrEmpty(txtsearch))
                    {
                        var whereSearch = string.Format(@" and {0} like '%" + txtsearch + "%'", searchC);
                        strwhere.Append(whereSearch);
                    }
                }
                if (!string.IsNullOrEmpty(startTime))
                {
                    if (!string.IsNullOrEmpty(endTime))
                    {

                        DateTime start1 = DateTime.ParseExact(startTime, "yyyy-MM-dd", System.Globalization.CultureInfo.CurrentCulture);
                        //DateTime fStart = start1.AddDays(1);
                        DateTime fStart = DateTime.ParseExact(endTime, "yyyy-MM-dd", System.Globalization.CultureInfo.CurrentCulture).AddDays(1);
                        //if (start1 <= fStart)
                        //{
                        strwhere.Append(" and PurchaseTime >= '" + start1 + "' and PurchaseTime < '" + fStart + "'");
                        //}
                    }
                }
                //if (!string.IsNullOrEmpty(start.Value))
                //{
                //    if (!string.IsNullOrEmpty(end.Value))
                //    {
                //        DateTime start1 = DateTime.ParseExact(start.Value, "yyyy-MM-dd", System.Globalization.CultureInfo.CurrentCulture);
                //        //DateTime fStart = start1.AddDays(1);
                //        DateTime fStart = DateTime.ParseExact(end.Value, "yyyy-MM-dd", System.Globalization.CultureInfo.CurrentCulture).AddDays(1);
                //        strwhere.Append(" and PurchaseTime >= '" + start1 + "' and PurchaseTime < '" + fStart + "'");
                //    }
                //}
                //if (hidSearch.Value != null && !string.IsNullOrEmpty(hidSearch.Value))
                //{
                //    if (txtCondition.Value != null && !string.IsNullOrEmpty(txtCondition.Value))
                //    {
                //        var whereSearch = string.Format(@" and {0} like '%" + txtCondition.Value + "%'", hidSearch.Value, txtCondition.Value);
                //        strwhere.Append(whereSearch);
                //    }
                //}
                int page = Request.Form["page"] != "" ? Convert.ToInt32(Request.Form["page"]) : 0;
                int size = Request.Form["rows"] != "" ? Convert.ToInt32(Request.Form["rows"]) : 0;
                string sort = Request.Form["sort"] != "" ? Request.Form["sort"] : "";
                string order = Request.Form["order"] != "" ? Request.Form["order"] : "";

                var dt = assetsBll.DataPage("Assets", "*,CONVERT(varchar(100), PurchaseTime, 23) as PurchaseTime1", "addtime", "desc", size, page, strwhere.ToString(), out count);


                string json = string.Empty;
                //if (dt != null && dt.Rows.Count > 0 && dt.Rows[0] != null)
                //{
                json = JsonHelper.CreateJsonParameters(dt, true, count);
                //}
                //else
                //{
                //    json = JsonHelper.CreateJsonParameters(null, false, count);
                //}



                Response.Write(json);
                Response.End();

            }
            catch (Exception ex)
            {

                throw ex;
            }


        }
        public void DelAssets()
        {
            var id = Request.QueryString["id"];
            if (id != null)
            {
                string msg = "";
                IAssetsBll bll = new AssetsBll();
                if (!string.IsNullOrEmpty(id))
                {
                    bool res = bll.DeleteDetail(Convert.ToInt32(id), out msg);
                    if (res)
                    {
                        Response.Write("{\"code\": 0,\"msg\": \"\",\"data\": {\"src\": \"\"}}");
                        Response.End();
                        //Response.Write("{\"code\": 0,\"msg\": \"\",\"data\": {\"src\": \"\"}}");
                    }
                    else
                    {
                        Response.Write("{\"code\": 1,\"msg\": \"\",\"data\": {\"src\": \"\"}}");
                        Response.End();
                    }
                }
            }
            else
            {
                Response.Write("{\"code\": 1,\"msg\": \"\",\"data\": {\"src\": \"\"}}");
                Response.End();
            }
        }

        #region 下载上传模板
        protected void DownloadOperation()
        {
            //string filePath = Server.MapPath("../excel") + @"\" + "电脑盘点导入模板.xls" + "";
            string filePath = Server.MapPath("../excel") + @"\" + "电脑盘点导入模板.xlsx" + "";
            byte[] data = File.ReadAllBytes(filePath);
            MemoryStream stream = new MemoryStream(data);
            Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}", "电脑盘点导入模板.xlsx"));
            Response.BinaryWrite(stream.ToArray());
            stream.Close();
            stream.Dispose();
            //File.Delete(filePath);
            Response.End();
        }
        #endregion

        #region 导入excel .xlsx
        protected void btnImport_Click(object sender, EventArgs e)
        {
            var fileup = fileUpload.PostedFile;
            //InsetData(Upload(fileup));
            //InsetData(fileup);
            // 说明:导入的方法
            if (fileUpload == null)
            {
                Response.Write("<script>alert('请先选择Excel文件!');window.location.href='AssetsListNew.aspx'</script>");
            }
            else
            {
                string fileUrl = "";
                #region 文件上传
                //try
                //{
                //}
                //catch
                //{
                //    Response.Write("<script>alert('数据上传失败,请重新导入');window.location.href='table.aspx'</script>");
                //    res = false;
                //}
                //全名  
                string excelFile = this.fileUpload.PostedFile.FileName;
                //获取文件名(不包括扩展名)  
                string fileName = Path.GetFileNameWithoutExtension(fileup.FileName);

                if (fileName == "" || fileName == null)
                {
                    Response.Write("<script>alert('请先选择Excel文件!');window.location.href='AssetsListNew.aspx'</script>");
                }
                else
                {
                    //扩展名  
                    string extentionName = excelFile.Substring(excelFile.LastIndexOf(".") + 1);
                    if (extentionName != "xlsx")
                    {
                        Response.Write("<script>alert('您上传的不是.xlsx文件!');window.location.href='AssetsListNew.aspx'</script>");
                    }
                    else
                    {
                        //浏览器安全性限制 无法直接获取客户端文件的真实路径,将文件上传到服务器端 然后获取文件源路径  
                        #region 设置上传路径将文件保存到服务器
                        string dateTime = DateTime.Now.Date.ToString("yyyyMMdd");
                        string time = DateTime.Now.ToShortTimeString().Replace(":", "");
                        string newFileName = dateTime + time + DateTime.Now.Millisecond.ToString() + ".xlsx";
                        //自己创建的文件夹 位置随意 合理即可  
                        fileUrl = Server.MapPath("..\\excel") + "\\" + newFileName;
                        //fileUrl = Path.Combine(Request.MapPath("~/excel"), Path.GetFileName(fileup.FileName));
                        fileup.SaveAs(fileUrl);

                        //DataTable dtData = ExcelHelper.Import(fileUrl);

                        //得到EXCEL的第二种方法(第一个参数是文件流,第二个是excel标签名,第三个是第几行开始读0算第一行)
                        DataTable dt = ExcelHelper.RenderDataTableFromExcel(fileUrl, "Sheet1", 0);
                        //Response.Write("<script>alert('已经上传到服务器文件夹')</script>");
                        //return fileUrl;
                        //3.删除服务器上的excel文件 获取路径并且删除
                        //string FilePath = Server.MapPath(fileUrl);  // 必须转化以下文件路径,不能直接delete("image/4jpg");
                        File.Delete(fileUrl);
                        #endregion
                        #region  dt导入数据库
                        //3:从System.Data.DataTable导入数据到数据库
                        //@param System.Data.DataTable dt
                        IAssetsBll assetBll = new AssetsBll();
                        IUserBll userBll = new UserBll();
                        int i = 0;
                        int num = 1;
                        string numList = string.Empty;
                        bool result = false;
                        var addTime = DateTime.Now;
                        var updateTime = DateTime.Now;
                        if (dt != null && dt.Rows.Count > 0 && dt.Rows[0] != null)
                        {
                            //查找现在数据表数据
                            var assetsList = assetBll.SearchList(string.Format(@"select * from assets withnolck"));
                            string msg = "";
                            foreach (DataRow dr in dt.Rows)
                            {
                                try
                                {
                                    num += 1;

                                    if (dr != null)
                                    {
                                        Assets assetmodel = new Assets();
                                        if (dr[0] != null)
                                        {
                                            assetmodel.Number = dr[0].ToString().Trim();

                                            if (dr[1] != null)
                                            {
                                                assetmodel.Type = dr[1].ToString().Trim();
                                            }
                                            if (dr[2] != null)
                                            {
                                                assetmodel.Brand = dr[2].ToString().Trim();
                                            }
                                            if (dr[3] != null)
                                            {
                                                assetmodel.IsMac = dr[3].ToString().Trim();
                                            }
                                            if (dr[4] != null)
                                            {
                                                assetmodel.VideoCard = dr[4].ToString().Trim();
                                            }
                                            if (dr[5] != null)
                                            {
                                                assetmodel.RAM = dr[5].ToString().Trim();
                                            }
                                            if (dr[6] != null)
                                            {
                                                assetmodel.RigidDisk = dr[6].ToString().Trim();
                                            }
                                            if (dr[7] != null)
                                            {
                                                assetmodel.CPU = dr[7].ToString().Trim();
                                            }
                                            if (!(dr[8] is DBNull))
                                            {
                                                DateTime purchaseTime = DateTime.Now;
                                                if (DateTime.TryParse(dr[8].ToString(), out purchaseTime))
                                                {
                                                    assetmodel.PurchaseTime = Convert.ToDateTime(dr[8].ToString());
                                                }
                                            }
                                            if (!(dr[9] is DBNull))
                                            {
                                                assetmodel.Monetary = Convert.ToDecimal(dr[9]);
                                            }
                                            if (dr[10] != null)
                                            {
                                                assetmodel.Size = dr[10].ToString().Trim();
                                            }
                                            if (dr[11] != null)
                                            {
                                                assetmodel.Department = dr[11].ToString().Trim();
                                            }
                                            if (dr[12] != null)
                                            {
                                                assetmodel.BelongName = dr[12].ToString().Trim();
                                                string sql = string.Format(@"select top 1 id from [user] where account = '{0}'", assetmodel.BelongName);
                                                var dtUser = userBll.SearchAll(sql);
                                                if (dtUser != null && dtUser.Rows.Count > 0 && dtUser.Rows[0] != null)
                                                {
                                                    assetmodel.BelongUser = Convert.ToInt32(dtUser.Rows[0]["id"]);
                                                }
                                            }
                                            if (dr[13] != null)
                                            {
                                                assetmodel.Position = dr[13].ToString().Trim();
                                            }
                                            if (dr[14] != null)
                                            {
                                                assetmodel.ProDirection = dr[14].ToString().Trim();
                                            }
                                            if (!(dr[15] is DBNull))
                                            {
                                                assetmodel.SellingPrice = Convert.ToDecimal(dr[15]);
                                            }
                                            if (dr[16] != null)
                                            {
                                                assetmodel.Remark = dr[16].ToString().Trim();
                                            }
                                            assetmodel.AddTime = addTime;
                                            assetmodel.UpdateTime = updateTime;
                                            var assetsId = assetsList.Where(t => t.Number == assetmodel.Number).Select(m => m.Id).FirstOrDefault();
                                            if (assetsId > 0)//存在就修改
                                            {
                                                assetmodel.AddTime = assetsList.Where(t => t.Number == assetmodel.Number).Select(m => m.AddTime).FirstOrDefault();
                                                assetmodel.UpdateTime = updateTime;
                                                assetmodel.Id = assetsId;
                                                result = assetBll.Update(assetmodel, out msg);
                                            }
                                            else//不存在就添加
                                            {
                                                result = assetBll.Add(assetmodel, out msg);
                                            }
                                        }
                                    }
                                    if (result)
                                    {
                                        i++;
                                    }
                                    else
                                    {
                                        numList = numList + num + ',';
                                        continue;
                                        //Response.Write("<script>alert(' 导入失败,数据格式出错!');window.location.href='AssetsList.aspx'</script>");
                                    }
                                }
                                catch (Exception ex)
                                {
                                    numList = numList + num + ',';
                                    //continue;
                                    throw ex;
                                    //Response.Write("<script>alert(' 未完全导入:共导入" + i + "组数据! 未完全导入数据为第" + numList.Trim(',') + "行!');window.location.href='AssetsList.aspx'</script>");
                                }
                            }
                        }
                        else
                        {
                            Response.Write("<script>alert('EXCEL文件为空文件!');window.location.href='AssetsListNew.aspx'</script>");
                        }
                        if (numList == string.Empty)
                        {
                            Response.Write("<script>alert(' 导入成功:共导入" + i + "组数据!');window.location.href='AssetsListNew.aspx'</script>");
                            //res = true;
                        }
                        else
                        {
                            Response.Write("<script>alert(' 未完全导入:共导入" + i + "组数据! 未完全导入数据为第" + numList.Trim(',') + "行!');window.location.href='AssetsListNew.aspx'</script>");
                            //res = true;
                        }
                    }
                }
                #endregion
                #endregion

            }
        }
        #endregion

        protected Assets loadAssets(string id)
        {
            var assets = new Assets();
            try
            {
                IAssetsBll assetsBll = new AssetsBll();
                string sql = string.Format(@"select * from Assets withnolock where ISNULL(IsDelete,0)<>1 and id='{0}'", id);
                var assetsList = assetsBll.SearchList(sql);
                if (assetsList.Any())
                {
                    assets = assetsList.FirstOrDefault();
                }
                return assets;
            }
            catch (Exception ex)
            {

                throw ex;
            }
        }
        protected void MakeORCode(string id)
        {
            try
            {
                var asset = loadAssets(id);
                if (asset.Id > 0)
                {

                    var url = Server.MapPath("..\\qrcode") + "\\" + "bg.jpg";
                    //var urlHtml = Server.MapPath("UserLogin.aspx");
                    string urlHtml = string.Format(@"AssetDetailsShow.aspx?id='{0}'", asset.Id);

                    var img = CreateORCode.GenerateQrCodeWithLogo(urlHtml, 400, 400, url, "资产编号:" + asset.Number);
                    System.IO.MemoryStream MStream = new System.IO.MemoryStream();
                    img.Save(MStream, System.Drawing.Imaging.ImageFormat.Png);
                    Response.ClearContent();
                    //Response.ContentType = "image/Png";
                    //Response.BinaryWrite(MStream.ToArray());
                    //Response.End();
                    Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}", asset.Number + ".png"));
                    Response.BinaryWrite(MStream.ToArray());

                    //string dateTime = DateTime.Now.Date.ToString("yyyyMMdd");
                    //string time = DateTime.Now.ToShortTimeString().Replace(":", "");
                    //string newFileName = dateTime + time + DateTime.Now.Millisecond.ToString() + ".png"; 
                    //string fileUrl = Server.MapPath("..\\qrcode") + "\\" + newFileName;
                    string fileUrl = Server.MapPath("..\\qrcode") + "\\" + asset.Number + ".png";
                    if (System.IO.File.Exists(fileUrl))
                    {
                        //存在文件
                        FileInfo file = new FileInfo(fileUrl);
                        file.Delete();

                    }
                    //不存在文件 

                    FileStream fs = new FileStream(fileUrl, FileMode.CreateNew, FileAccess.ReadWrite);


                    BinaryWriter bw = new BinaryWriter(fs, UTF8Encoding.UTF8);
                    byte[] by = MStream.ToArray();
                    for (int i = 0; i < MStream.ToArray().Length; i++)
                    {
                        bw.Write(by[i]);
                    }
                    fs.Close();
                    MStream.Close();
                    MStream.Dispose();
                    //Response.End();
                    //Response.Write("<script>alert('成功生成二维码!');</script>");
                }
                else
                {
                    Response.Write("<script>window.location.href='AssetsListNew.aspx';alert('生成二维码失败,不存在该条记录!');</script>");
                }
            }
            catch (Exception ex)
            {

                throw ex;
            }

        }


    }
}

4.真分页操作Dal   BaseDalNew.cs

/// <summary>
        /// 分页查询
        /// </summary>
        /// <param name="tableName"></param>
        /// <param name="getFields"></param>
        /// <param name="orderName"></param>
        /// <param name="desc"></param>
        /// <param name="pageSize"></param>
        /// <param name="pageIndex"></param>
        /// <param name="strWhere"></param>
        /// <param name="count"></param>
        /// <returns></returns>
        
        public virtual DataTable DataPage(string tableName, string getFields, string orderName, string desc, int pageSize, int pageIndex, string strWhere, out int count)
        {
            int pageStart, pageEnd = 0;
            pageEnd = pageSize * pageIndex;
            pageStart = pageEnd - pageSize + 1;

            string sql = "select " + getFields + " from ( select ROW_NUMBER() over(order by " + orderName + "  " + desc + ") as row,* from " + tableName + " where " + strWhere + ") r where r.row between " + pageStart + " and " + pageEnd;
            string sql1 = "select " + getFields + " from ( select ROW_NUMBER() over(order by id) as row,* from " + tableName + " where " + strWhere + ") r  order by r." + orderName + " " + desc;
            DataTable dt = SqlHelper.Search(sql);
            DataTable dt2 = SqlHelper.Search(sql1);
            count = dt2.Rows.Count;

            return dt;
        }

5.ADO 操作数据库类 sqlhelper.cs

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DQPA.DAL
{
    public class SqlHelper
    {
        static string constr = System.Configuration.ConfigurationSettings.AppSettings["sqlcon"];
        /// <summary>
        /// 数据库连接字符串
        /// Data Source=数据库地址;Initial Catalog=数据库名称;Persist Security Info=True;User ID=用户名;Password=密码
        /// </summary>
        //static string constr = "Data Source=.;Initial Catalog=;Persist Security Info=True;User ID=sa;Password=";
        //执行增删改操作 返回受影响行数
        public static int ExcuteSql(string sql)
        {
            int result = 0;
            using (SqlConnection con = new SqlConnection(constr))
            {
                SqlCommand cmd = new SqlCommand(sql, con);
                con.Open();
                result = cmd.ExecuteNonQuery();
            }
            return result;
        }
        //执行查询操作 返回datatable 查询所有
        public static DataTable Search(string field, string tableName)
        {
            DataTable dt = null;
            using (SqlConnection con = new SqlConnection(constr))
            {
                string sql = "select" + field + "from " + tableName;
                SqlDataAdapter adp = new SqlDataAdapter(sql, con);
                con.Open();
                DataSet ds = new DataSet();
                if (ds != null)
                {
                    adp.Fill(ds);
                    dt = ds.Tables[0];
                }
            }
            return dt;
        }
        //执行查询操作 返回datatable 条件查询
        public static DataTable Search(string field, string tableName, string where)
        {
            DataTable dt = null;
            using (SqlConnection con = new SqlConnection(constr))
            {
                string sql = "select " + field + " from " + tableName + " where 1=1" + where + "";
                SqlDataAdapter adp = new SqlDataAdapter(sql, con);
                con.Open();
                DataSet ds = new DataSet();
                if (ds != null)
                {
                    adp.Fill(ds);
                    dt = ds.Tables[0];
                }
            }
            return dt;
        }
        //执行查询操作 返回datatable sql语句查询
        public static DataTable Search(string sql)
        {

            using (SqlConnection con = new SqlConnection(constr))
            {
                con.Open();
                SqlDataAdapter adp = new SqlDataAdapter(sql, con);

                DataSet ds = new DataSet();
                DataTable dt = null;
                if (ds != null)
                {
                    adp.Fill(ds);
                    dt = ds.Tables[0];
                }
                return dt;
            }

        }
        //执行存储过程操作 返回datatable 分页查询
        public static DataTable ExcuteProc(string procName, SqlParameter[] parameters)
        {
            //DataTable dt = null;
            using (SqlConnection con = new SqlConnection(constr))
            {
                //声明执行sql语句对象
                SqlCommand cmd = new SqlCommand(procName, con);
                //制定SqlCommand执行的是存储过程
                cmd.CommandType = CommandType.StoredProcedure;
                foreach (var item in parameters)
                {
                    cmd.Parameters.Add(item);
                }
                SqlDataAdapter adp = new SqlDataAdapter(cmd);
                con.Open();
                DataSet ds = new DataSet();
                DataTable dt = null;
                if (ds != null)
                {
                    adp.Fill(ds);
                    dt = ds.Tables[0];
                }
                return dt;
            }

        }
        //执行事务操作 
        public static int ExcuteTran(List<string> sqls)
        {
            using (SqlConnection con = new SqlConnection(constr))
            {
                con.Open();
                SqlTransaction tran = con.BeginTransaction();//开始一个事物
                int result = 0;
                try
                {
                    foreach (string sql in sqls)
                    {
                        SqlCommand cmd = new SqlCommand(sql, con);
                        cmd.Transaction = tran;

                        result = cmd.ExecuteNonQuery();
                    }
                    tran.Commit();
                }
                catch (Exception)

                {
                    tran.Rollback();
                }

                return result;
            }
        }
        /// <summary>
        /// 分页查询
        /// </summary>
        /// <param name="tableName"></param>
        /// <param name="getFields"></param>
        /// <param name="orderName"></param>
        /// <param name="desc"></param>
        /// <param name="pageSize"></param>
        /// <param name="pageIndex"></param>
        /// <param name="strWhere"></param>
        /// <param name="count"></param>
        /// <returns></returns>
        public static DataTable DataPage(string tableName, string getFields, string orderName, string desc, int pageSize, int pageIndex, string strWhere, out int count)
        {
            int pageStart, pageEnd = 0;
            pageEnd = pageSize * pageIndex;
            pageStart = pageEnd - pageSize + 1;

            string sql = "select " + getFields + " from ( select ROW_NUMBER() over(order by " + orderName + "  " + desc + ") as row,* from " + tableName + " where " + strWhere + ") r where r.row between " + pageStart + " and " + pageEnd;
            string sql1 = "select " + getFields + " from ( select ROW_NUMBER() over(order by id) as row,* from " + tableName + " where " + strWhere + ") r  order by r." + orderName + " " + desc;
            DataTable dt = Search(sql);
            DataTable dt2 = Search(sql);
            count = dt2.Rows.Count;

            return dt;
        }
    }
}

 

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