EPPlus 是.net的一个操作Excel的插件,封装了针对Excel的读取、写入等操作,并且该项目还是开源的。关于EPPlus的更多介绍我就不赘述了,可查看:http://epplus.codeplex.com/
这里我简单的介绍如何将Excel的Sheet转换成DataTable,关于安装和其他的相关操作请谷歌或者百度下。
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using EPPlus.Extensions;
using OfficeOpenXml;
using System.IO;
namespace ManageSys.Utility
{
/// <summary>
/// 使用 EPPlus 第三方的组件读取Excel
/// </summary>
public class EPPlusHelper
{
private static string GetString(object obj)
{
try
{
return obj.ToString();
}
catch (Exception ex)
{
return "";
}
}
/// <summary>
///将指定的Excel的文件转换成DataTable (Excel的第一个sheet)
/// </summary>
/// <param name="fullFielPath">文件的绝对路径</param>
/// <returns></returns>
public static DataTable WorksheetToTable(string fullFielPath)
{
try
{
FileInfo existingFile = new FileInfo(fullFielPath);
ExcelPackage package = new ExcelPackage(existingFile);
ExcelWorksheet worksheet = package.Workbook.Worksheets[1];//选定 指定页
return WorksheetToTable(worksheet);
}
catch (Exception)
{
throw;
}
}
/// <summary>
/// 将worksheet转成datatable
/// </summary>
/// <param name="worksheet">待处理的worksheet</param>
/// <returns>返回处理后的datatable</returns>
public static DataTable WorksheetToTable(ExcelWorksheet worksheet)
{
//获取worksheet的行数
int rows = worksheet.Dimension.End.Row;
//获取worksheet的列数
int cols = worksheet.Dimension.End.Column;
DataTable dt = new DataTable(worksheet.Name);
DataRow dr = null;
for (int i = 1; i <= rows; i++)
{
if (i > 1)
dr = dt.Rows.Add();
for (int j = 1; j <= cols; j++)
{
//默认将第一行设置为datatable的标题
if (i == 1)
dt.Columns.Add(GetString(worksheet.Cells[i, j].Value));
//剩下的写入datatable
else
dr[j - 1] = GetString(worksheet.Cells[i, j].Value);
}
}
return dt;
}
}
}
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