asp.net Excel操作-读写

前台

<%@ Page MasterPageFile="~/Site.Master" Language="C#" AutoEventWireup="true" CodeBehind="ExcelTest.aspx.cs" Inherits="WebService.WebFormSystem.ExcelTest" %>

<asp:Content ID="BodyContent" ContentPlaceHolderID="MainContent" runat="server">
    <link href="../Content/bootstrap.min.css" rel="stylesheet" />
    <div>
        <h3>Excel模版写入操作</h3>
        <asp:TextBox ID="TextBox1" runat="server" Height="73px" TextMode="MultiLine"
            Width="338px" CssClass="form-control">要写要到Excel的数据,请不要同时点两种方法</asp:TextBox>
        <br />

        <asp:Button ID="btxls" runat="server" OnClick="btxls_Click" CssClass="btn btn-success" Text="输出到Excel" />

        <asp:Button ID="btxls0"
            runat="server" Text="快速批量输出到Excel" CssClass="btn btn-warning" OnClick="btxls0_Click" />
        <asp:Button ID="btExcelRead" runat="server" Text="读取Excel" CssClass ="btn btn-primary" OnClick="btExcelRead_Click"/>
        <br />
        <asp:Label ID="Label1" runat="server" ForeColor="Red" Text="Label"></asp:Label>
        <br />
        <asp:Label ID="Label2" runat="server" ForeColor="Red" Text="Label"></asp:Label>
        <br />
    </div>
</asp:Content>

后台

using System;
using System.IO;
using Microsoft.Office.Interop.Excel;

namespace WebService.WebFormSystem
{
    public partial class ExcelTest : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }


        protected void btxls_Click(object sender, EventArgs e)
        {
            string sPathModel = Server.MapPath("test.xls");
            string sPathExport = Server.MapPath("test1.xls");
            string sData = TextBox1.Text;
            this.FunExcelExport(sPathModel, sPathExport, sData);
            Label1.Text = "模版位置:" + sPathModel;
            Label2.Text = "输出Excel:" + sPathExport;
            Response.Redirect("test1.xls");
        }

        //快速批量输出到Excel
        protected void btxls0_Click(object sender, EventArgs e)
        {
            string sPathModel = Server.MapPath("test.xls");
            string sPathExport = Server.MapPath("test2.xls");
            string sData = TextBox1.Text;
            this.FunAllExcelExport(sPathModel, sPathExport, sData);
            Label1.Text = "模版位置:" + sPathModel;
            Label2.Text = "输出Excel:" + sPathExport;
            Response.Redirect("test2.xls");
        }

        protected void btExcelRead_Click(object sender, EventArgs e)
        {
            string sPathModel = Server.MapPath("test1.xls");
            ExcelRead(sPathModel);
        }

        /// <summary>
        /// excel读取
        /// </summary>
        /// <param name="sPathModel"></param>
        public void ExcelRead(string sPathModel)
        {
            Workbook myBook = null;
            try
            {
                Application myApp = new ApplicationClass();
                Worksheet mySheet;
                Range myRange;
                object oMissiong = System.Reflection.Missing.Value;
                myBook = myApp.Workbooks.Open(sPathModel);

                mySheet = (Worksheet)myBook.Worksheets[3];//读sheet3内容

                int rowsint = mySheet.UsedRange.Cells.Rows.Count; //得到行数
                int columnsint = mySheet.UsedRange.Cells.Columns.Count;//得到列数
                //单个单元格
                myRange = ((Range)mySheet.Cells[1, 1]);
                Label1.Text = myRange.Value.ToString();
                //多个单元格
                myRange = mySheet.get_Range("A1", "D5");
                object[,] arryItem = (object[,])myRange.Value2;   //get range's value
                string sValue = "";
                for (int i = 1; i <= rowsint; i++)
                {
                    for (int j = 1; j <= columnsint; j++)
                    {
                        sValue += arryItem[i, j].ToString();
                    }
                    sValue += "\n";
                }
                TextBox1.Text = sValue;
                Label2.Text = sPathModel;
                //myBook.Save();
            }
            catch (Exception)
            {
                throw;
            }
            finally
            {
                myBook.Close(true, sPathModel, true);
                myBook = null;
                KillExcelProcess();
            }
        }

        /// <summary>
        /// 批量输出模版到Excel
        /// </summary>
        /// <param name="sPathModel">模版所在的位置</param>
        /// <param name="sPathExport">要输出的位置</param>
        /// <param name="sData">要写入的数据</param>
        public void FunAllExcelExport(string sPathModel, string sPathExport, string sData)
        {
            Application myApp = null;
            Workbook myBook = null;
            Worksheet mySheet = null;
            //Sheets mySheets;
            Range myRange;
            object oMissiong = System.Reflection.Missing.Value;
            try
            {
                FileInfo myFileInfo = new FileInfo(sPathModel);
                myFileInfo.Attributes = FileAttributes.Normal;//设为可写
                myFileInfo.CopyTo(sPathExport, true);
                myApp = new ApplicationClass();
                //myApp.Visible = false;
                myBook = myApp.Workbooks.Open(sPathExport, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong);

                mySheet = (Worksheet)myBook.Worksheets[1];
                myRange = mySheet.get_Range("A2", "E2");//要操作的单元格

                myRange.Merge(0);//合并设置的单元格

                //////////////////////////////
                myRange = mySheet.get_Range("A3", "A7");//要操作的单元格

                myRange.Merge(0);//合并设置的单元格

                myRange = mySheet.get_Range("A8", oMissiong);//要操作的单元格

                myRange = myRange.get_Resize(10, 10);//合并10行10列的单元格

                myRange.Merge(0);//合并设置的单元格

                myRange = mySheet.get_Range("A2", "E2"); ////要操作的单元格

                object[] objHeader = { "标题1", "标题2", "标题3", "标题4", "标题5" };//要写入的行列内容
                myRange.Value = objHeader;
                myRange = mySheet.get_Range("A3", "E3"); ////要操作的单元格

                object[] objHeader2 = { "标题11", "标题12", "标题13", "标题14", "标题15" };//要写入的行列内容
                myRange.Value = objHeader2;

                mySheet = (Worksheet)myBook.Worksheets[2];//放在第二个sheet中写入内容

                myRange = mySheet.get_Range("A4", oMissiong);
                int ih = 100;// 行

                int il = 20; //列

                object[,] objData = new Object[ih, il];//建立一个同样行列的数组
                for (int i = 0; i < ih; i++)
                {
                    for (int j = 0; j < il; j++)
                    {
                        objData[i, j] = (i + 1).ToString() + "行" + (j + 1).ToString() + "列";
                    }
                }
                myRange = myRange.get_Resize(ih, il);//设置输出的行数和列数
                myRange.Value = objData;
                //myRange.EntireColumn.AutoFit();  //自动调整列宽
                myBook.Save();
            }
            catch (Exception)
            {
                throw;
            }
            finally
            {
                myBook.Close(true, sPathExport, true);
                myBook = null;
                KillExcelProcess();
            }


        }


        /// <summary>
        /// 输出模版到Excel
        /// </summary>
        /// <param name="sPathModel">模版所在的位置</param>
        /// <param name="sPathExport">要输出的位置</param>
        /// <param name="sData">要写入的数据</param>
        public void FunExcelExport(string sPathModel, string sPathExport, string sData)
        {
            Workbook myBook = null;
            object oMissiong = System.Reflection.Missing.Value;
            try
            {
                FileInfo myFileInfo = new FileInfo(sPathModel);
                myFileInfo.Attributes = FileAttributes.Normal;//设为可写
                myFileInfo.CopyTo(sPathExport, true);

                Application myApp = new ApplicationClass();
                Worksheet mySheet;
                //myApp.Visible = false;
                myBook = myApp.Workbooks.Open(sPathExport);

                mySheet = (Worksheet)myBook.Worksheets[1];
                mySheet.Cells[1, 1] = sData;
                mySheet.Name = "a";

                mySheet = (Worksheet)myBook.Worksheets[2];
                mySheet.Cells[1, 1] = sData;
                mySheet.Name = "b";
                myBook.Save();
            }
            catch (Exception)
            {
                throw;
            }
            finally
            {
                myBook.Close(true, sPathExport, true);
                myBook = null;
                KillExcelProcess();
            }


        }
        /// <summary>
        /// 释放EXCEL资源
        /// </summary>
        /// <param name="excelFile">EXCEL文件路径</param>
        private void NAR(Object o)
        {
            System.Runtime.InteropServices.Marshal.ReleaseComObject(o);
            o = null;
        }
        private void KillExcelProcess()
        {
            System.Diagnostics.Process[] p = System.Diagnostics.Process.GetProcessesByName("EXCEL");
            for (int i = 0; i < p.Length; i++)
            {
                p[i].Kill();
            }
        }


    }
}

使用说明

需要引用与当前安装版本一致的Excel.dll 可以从网上下。
嵌入交互文件类型改为 “False”。
在目录中建立一个test.xls文件
按引入Excel.dll编译通过即可。