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ASP.NET之导出Excel表格操作方法

作者:胡同里的砖头 围观群众:1641 更新于:2013-12-19

 

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using IPMMIS.Common;

namespace IPMMIS.ApiInterface
{
    /// <summary>
    /// 提供各报表导出Excel功能
    /// </summary>
    public class ToExcel
    {
        public string applicationPath = "";

        public ToExcel()
        {
            applicationPath = System.Web.HttpContext.Current.Server.MapPath("~");
        }

        public ToExcel(string appPath)
        {
            applicationPath = appPath;
        }

        /// <summary>
        /// 示范建筑导出报表,成功导出后,返回 Excel文件名,否则返回null
        /// </summary>
        /// <param name="dtSource">需要导出的DataTable</param>
        /// <param name="dtMain">单据主表</param>
        /// <param name="type">0为上报信息,1为汇总信息</param>
        /// <returns>成功后返回 文件名 供前台下载,失败后,返回null</returns>
        public string StationInstallToExcle(DataTable dtSource, DataTable dtMain,int type)
        {
            string templateFile = applicationPath + "Templates\\StationInstallReport.xls";
            string outputFileName = DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".xls";
            string outputFile = applicationPath + "Temp\\" + outputFileName;

            MyExcel excel = new MyExcel();
            excel.TempFile = templateFile;
            excel.OutputFile = outputFile;

            try
            {
                excel.CopyTempFile();
                excel.OpenExecl();

                //写标题时间
                excel.WriteOneCell(4, 1, string.Format("From {0} to {1}", Convert.ToDateTime(dtMain.Rows[0]["BeginDate"]).ToString("yyyy-MM-dd"),
                                Convert.ToDateTime(dtMain.Rows[0]["EndDate"]).ToString("yyyy-MM-dd")));

                //写内容
                //excel.InsertRange("A8","P8","A11","P11");
                DataRow[] rowsReport = dtSource.Select("ReportType='0' and ID <> '0'");//报告周期内的数据
                DataRow[] rowsProject = dtSource.Select("ReportType='1' and ID <> '0'");//项目周期内的数据

                //写入报告周内数据
                excel.InsertRows(11, rowsReport.Length - 1);

                //
                //Console.WriteLine(15 + rowsReport.Length);
                excel.InsertRows(13 + rowsReport.Length, rowsReport.Length - 1);
                string[] col ={"title","ContractNo","ContractDate","OnStationCount","OnBaitCount","UnderStationCount","UnderBaitCount","UnderWoodCount","EORemedial","EOInstalled",
                "EOChecked","EOReplaced","EUInstalled","EUChecked","EUStationReplaced","EUBaitReplaced","EUWoodReplaced","NoUsedStation","NoUsedBait","NoUsedUStation","NoUsedUBait",
                             "NoUsedWood","MemoInfo"};
                for (int i = 0; i < rowsReport.Length; i++)
                {
                    //报告周期报表
                    for (int j = 0; j < col.Length; j++)
                    {
                        excel.WriteOneCell(10 + i, j + 1, rowsReport[i][col[j]].ToString());
                    }

                    //项目周期报表
                    for (int j = 0; j < col.Length; j++)
                    {
                        excel.WriteOneCell((11 + rowsProject.Length) + i, j + 1, rowsProject[i][col[j]].ToString());
                    }
                }
                //合计行
                if (type == 0)
                {
                    string[] ABC = { "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W" };
                    excel.InsertRows(10 + rowsReport.Length, 1);
                    excel.WriteOneCell(10 + rowsReport.Length, 1, "合计");
                    for (int i = 0; i < ABC.Length; i++)
                    {
                        excel.WriteOneCell(10 + rowsReport.Length, i + 4, "=SUM(" + ABC[i] + "10:" + ABC[i] + (9 + rowsReport.Length) + ")");
                    }

                    int nextFirst = 10 + rowsReport.Length + 2;
                    excel.InsertRows(12 + (rowsReport.Length * 2) + 2, 1);
                    excel.WriteOneCell(12 + (rowsReport.Length * 2), 1, "合计");
                    for (int i = 0; i < ABC.Length; i++)
                    {
                        excel.WriteOneCell(12 + (rowsReport.Length * 2), 4 + i, "=SUM(" + ABC[i] + (nextFirst) + ":" + ABC[i] + (nextFirst + rowsReport.Length - 1).ToString() + ")");
                    }
                }
                excel.Save();
                excel.Close();
            }
            catch (Exception e)
            {
                try { if (excel != null) { excel.Close(); } }
                catch { }
                Logger.Error(e.Message);
                return null;
            }

            return outputFileName;
        }
    }
}

 

MyExcel的class类请见:

http://www.xhsjs.com/NET/ZhiShi/100000909.shtml

  • 本文标题: ASP.NET之导出Excel表格操作方法
  • 文章分类:【.NET/Web】
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