OpenXml，指定行数插入内容

解决思路是将指定行数以下的内容全部下移一行，然后插入新内容。

示例代码：

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using DocumentFormat.OpenXml;

using DocumentFormat.OpenXml.Spreadsheet;

using DocumentFormat.OpenXml.Packaging;

using System.IO;

using System.Text.RegularExpressions;

namespace OpenXmlTest

{

    public partial class OpenXml : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {

            try

            {

                string sfile = Server.MapPath("~/Office/template.xlsx");

                string file = Server.MapPath("~/Office") + "/" + DateTime.Now.ToString("yyyyMMddHHmmssffff") + ".xlsx";

                File.Copy(sfile, file);

                using (SpreadsheetDocument xl = SpreadsheetDocument.Open(file, true))

                {

                    WorkbookPart wp = xl.WorkbookPart;

                    Workbook wb = wp.Workbook;

                   Sheet s = wb.Descendants<Sheet>().Where(w => w.Name == "Sheet1").FirstOrDefault();

                    WorksheetPart sp = wp.GetPartById(s.Id) as WorksheetPart;

                    if (sp != null)

                    {

                        SheetData sda = sp.Worksheet.Descendants<SheetData>().FirstOrDefault();

                        //SharedStringTable stringTable = xl.WorkbookPart.SharedStringTablePart.SharedStringTable;

                        //Row row = sp.Worksheet.Descendants<Row>().ToList()[1];

                        int insertIndex = 3;//在第三行插入

                        //把后面的行内容全部下移

                        foreach (Row row in sp.Worksheet.Descendants<Row>())

                        {

                            int index = int.Parse(row.RowIndex.ToString());

                            if (index >= insertIndex)

                            {

                                //从这一行开始移动

                                row.RowIndex = new UInt32Value((uint)index + 1);

                                foreach (Cell cell in row.Descendants<Cell>())

                                {

                                    Regex r = new Regex(@"[0-9]+");

                                    string num = r.Match(cell.CellReference.ToString()).Value;

                                    r = new Regex(@"[a-zA-Z]+");

                                    string chr = r.Match(cell.CellReference.ToString()).Value;

                                    string newRef = string.Format("{0}{1}", chr, (int.Parse(num) + 1));

                                    cell.CellReference = newRef;

                                }

                            }

                        }

                        //移动完后再插入新的

                        Row nrow = new Row() { RowIndex = (UInt32Value)3U };

                        Cell ncell = new Cell();

                        ncell.CellReference = string.Format("A{0}", insertIndex);

                        ncell.DataType = CellValues.String;

                        ncell.CellValue = new CellValue("新插入的");

                        nrow.Append(ncell);

                        sda.InsertAt<Row>(nrow, insertIndex - 1);

                        //cell.DataType = CellValues.String;

                        //cell.CellValue = new CellValue("1");

                        //Row nrow = new Row();

                        //Cell ncell = new Cell();

                        //ncell.StyleIndex = row.Descendants<Cell>().ToList()[0].StyleIndex;

                        //ncell.CellValue = new CellValue(DateTime.Now.ToOADate().ToString());

                        //nrow.Append(ncell);

                        //sda.Append(nrow);

                        wb.Save();

                    }

                    wb.Clone();

                }

            }

            catch (Exception ex)

            {

                throw ex;

            }

        }

    }

}