利用OpenXml SDK创建Excel文件和给指定的worksheet填充数据

本程序分别演示了如何创建Excel文件并包含指定名称的Worksheet；如何给Excel文件中指定的Worksheet填充数据

using System;
using System.Linq;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Spreadsheet;
using System.Collections.Generic;
using System.IO;

namespace OpenXmlExcelFillDataCS
{
    class Program
    {
        static void Main(string[] args)
        {
            // create the Excel file contains a worksheet named test
            CreateSpreadSheet("test");

            // get the empty Data.xlsx file from bin folder
            string path = AppDomain.CurrentDomain.BaseDirectory + "DataTemplate.xlsx";
            if (File.Exists(path))
            {
                File.Copy(path, "Data.xlsx", true);
                {
                    FillData("Data.xlsx", "Sheet2");
                }
            }
            else
            {
                Console.WriteLine("please create the template file: " + path);
            }
        }

        private static void FillData(string path, string sheetName)
        {
            using (SpreadsheetDocument document = SpreadsheetDocument.Open(
               path, true))
            {
                // find sheets by sheet name
                IEnumerable sheets = document.WorkbookPart.Workbook.Descendants().Where(s => s.Name == sheetName);
                if (sheets.Count() == 0)
                {
                    // The specified worksheet does not exist.
                    return;
                }
                WorksheetPart worksheetPart = (WorksheetPart)document.WorkbookPart.GetPartById(sheets.First().Id);
                Worksheet worksheet = worksheetPart.Worksheet;
                SheetData sheetData = worksheet.GetFirstChild();

                // fill data to Cell F4
                Row row1 = new Row() { RowIndex = (UInt32Value)4U };
                Cell cell1 = new Cell() { CellReference = "F4" };
                CellValue cellValue1 = new CellValue();
                cellValue1.Text = "222";
                cell1.Append(cellValue1);
                row1.Append(cell1);

                // fill data to Cell C5
                Row row2 = new Row() { RowIndex = (UInt32Value)5U };
                Cell cell2 = new Cell() { CellReference = "C5" };
                CellValue cellValue2 = new CellValue();
                cellValue2.Text = "111";
                cell2.Append(cellValue2);
                row2.Append(cell2);

                // append rows to SheetData elment
                sheetData.Append(row1);
                sheetData.Append(row2);

                // save worksheet
                worksheet.Save();
            }
        }

        private static void CreateSpreadSheet(string sheetName)
        {
            using (SpreadsheetDocument spreadSheet = SpreadsheetDocument.Create(
   System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "test.xlsx"),
   SpreadsheetDocumentType.Workbook))
            {
                // create the workbook
                spreadSheet.AddWorkbookPart();
                spreadSheet.WorkbookPart.Workbook = new Workbook();     // create the worksheet
                spreadSheet.WorkbookPart.AddNewPart();
                spreadSheet.WorkbookPart.WorksheetParts.First().Worksheet = new Worksheet();

                // create sheet data
                spreadSheet.WorkbookPart.WorksheetParts.First().Worksheet.AppendChild(new SheetData());

                // create row
                spreadSheet.WorkbookPart.WorksheetParts.First().Worksheet.First().AppendChild(new Row());

                // create cell with data
                spreadSheet.WorkbookPart.WorksheetParts.First().Worksheet.First().First().AppendChild(
                      new Cell() { CellValue = new CellValue("100") });

                // save worksheet
                spreadSheet.WorkbookPart.WorksheetParts.First().Worksheet.Save();

                // create the worksheet to workbook relation
                spreadSheet.WorkbookPart.Workbook.AppendChild(new Sheets());
                spreadSheet.WorkbookPart.Workbook.GetFirstChild().AppendChild(new Sheet()
                {
                    Id = spreadSheet.WorkbookPart.GetIdOfPart(spreadSheet.WorkbookPart.WorksheetParts.First()),
                    SheetId = 1,
                    Name = sheetName
                });

                spreadSheet.WorkbookPart.Workbook.Save();
            }
        }
    }
}

运行效果：

创建的工作簿

填充数据的工作簿