c#用EPPLUS操作excel

参考：

http://www.cnblogs.com/rumeng/p/3785748.html

http://www.cnblogs.com/libla/p/5824296.html#3818995

结果：

首先新建一个winform程序，然后加一个button，

之后双击button1，进入代码区域，输入下面的代码：

 using OfficeOpenXml;
 using OfficeOpenXml.Drawing;
 using OfficeOpenXml.Drawing.Chart;
 using OfficeOpenXml.Style;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Data;
 using System.Drawing;
 using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Forms;

 namespace WindowsFormsApplication1epplus
 {
     public partial class Form1 : Form
     {
         public Form1()
         {
             InitializeComponent();
         }

         private void button1_Click(object sender, EventArgs e)
         {
             using (ExcelPackage package = new ExcelPackage(new FileStream(@"E:\test.xlsx", FileMode.Open)))
             {
                 for (int i = ; i <= package.Workbook.Worksheets.Count; ++i)//循环sheet
                 {
                     ExcelWorksheet sheet = package.Workbook.Worksheets[i];
                     for (int j = sheet.Dimension.Start.Column, k = sheet.Dimension.End.Column; j <= k; j++)
                     {
                         for (int m = sheet.Dimension.Start.Row, n = sheet.Dimension.End.Row; m <= n; m++)
                         {
                             string str = GetValue(sheet, m, j);
                             if (str != null)
                             {
                                 // do something
                             }
                         }
                     }
                 }
             }

             FileInfo newFile = new FileInfo(@"E:\test.xlsx");
             if (newFile.Exists)
             {
                 newFile.Delete();
                 newFile = new FileInfo(@"E:\test.xlsx");
             }
             using (ExcelPackage package = new ExcelPackage(newFile))
             {
                 ExcelWorksheet worksheet = package.Workbook.Worksheets.Add("test");

                 worksheet.Cells.Style.WrapText = true;
                 worksheet.View.ShowGridLines = false;//去掉sheet的网格线

                 worksheet.Cells[, ].Value = "名称";
                 worksheet.Cells[, ].Value = "价格";
                 worksheet.Cells[, ].Value = "销量";

                 worksheet.Cells[, ].Value = "大米";
                 worksheet.Cells[, ].Value = ;
                 worksheet.Cells[, ].Value = ;

                 worksheet.Cells[, ].Value = "玉米";
                 worksheet.Cells[, ].Value = ;
                 worksheet.Cells[, ].Value = ;

                 worksheet.Cells[, ].Value = "小米";
                 worksheet.Cells[, ].Value = ;
                 worksheet.Cells[, ].Value = ;

                 worksheet.Cells[, ].Value = "糯米";
                 worksheet.Cells[, ].Value = ;
                 worksheet.Cells[, ].Value = ;

                 using (ExcelRange range = worksheet.Cells[, , , ])
                 {
                     range.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
                     range.Style.VerticalAlignment = ExcelVerticalAlignment.Center;
                 }

                 using (ExcelRange range = worksheet.Cells[, , , ])
                 {
                     range.Style.Font.Bold = true;
                     range.Style.Font.Color.SetColor(Color.White);
                     range.Style.Font.Name = "微软雅黑";
                     range.Style.Font.Size = ;
                     range.Style.Fill.PatternType = ExcelFillStyle.Solid;
                     range.Style.Fill.BackgroundColor.SetColor(Color.FromArgb(, , ));
                 }

                 worksheet.Cells[, ].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(, , ));
                 worksheet.Cells[, ].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(, , ));
                 worksheet.Cells[, ].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(, , ));

                 worksheet.Cells[, ].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(, , ));
                 worksheet.Cells[, ].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(, , ));
                 worksheet.Cells[, ].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(, , ));

                 worksheet.Cells[, ].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(, , ));
                 worksheet.Cells[, ].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(, , ));
                 worksheet.Cells[, ].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(, , ));

                 worksheet.Cells[, ].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(, , ));
                 worksheet.Cells[, ].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(, , ));
                 worksheet.Cells[, ].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(, , ));

                 worksheet.Cells[, ].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(, , ));
                 worksheet.Cells[, ].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(, , ));
                 worksheet.Cells[, ].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(, , ));

                 ExcelChart chart = worksheet.Drawings.AddChart("chart", eChartType.ColumnClustered);

                 ExcelChartSerie serie = chart.Series.Add(worksheet.Cells[, , , ], worksheet.Cells[, , , ]);
                 serie.HeaderAddress = worksheet.Cells[, ];

                 chart.SetPosition(, );
                 chart.SetSize(, );
                 chart.Title.Text = "销量走势";
                 chart.Title.Font.Color = Color.FromArgb(, , );
                 chart.Title.Font.Size = ;
                 chart.Title.Font.Bold = true;
                 chart.Style = eChartStyle.Style15;
                 chart.Legend.Border.LineStyle = eLineStyle.Solid;
                 chart.Legend.Border.Fill.Color = Color.FromArgb(, , );

                 package.Save();
             }

         }
     }
 }

会提示错误， 注意要引用EPPlus，安装好效果如下：

方法是：

输入epplus，搜索，安装即可。

注意路径在E盘，没有E盘的肯定会出错。