一.下载引用 下载需要引用的dll,即:NPOI.dll,NPOI.OOXML.dll,NPOI.OpenXml4Net.dll,ICSharpCode.SharpZipLib.dll(office2007版需要此dll). 二.excel转datatable类 using System; using System.Data; using System.IO; using NPOI.SS.UserModel; using NPOI.XSSF.UserModel; using NPOI.HSSF.
//首先Nuget安装NPOI库using System; using System.Data; using System.IO; using NPOI.HSSF.UserModel; using NPOI.SS.UserModel; using NPOI.XSSF.UserModel; public static class ExcelExtensions { /// <summary> /// DataSet数据导出到Excel文件 /// </summary> /// <
using System;using System.Collections.Generic;using System.Linq;using System.Text;using NPOI.HSSF.UserModel;using NPOI.HPSF;using NPOI.POIFS.FileSystem;using System.IO;using NPOI.SS.Util; namespace ExcelPlay{ public class Excel { public
添加引用 using NPOI.HSSF.UserModel; using NPOI.SS.UserModel; using System; using System.Collections.Generic; using System.Data; using System.IO; using System.Text; 导入 public DataSet ExcelToDataTable(string path) { DataSet dataSet1 = new DataSet(); HSSFWo