open xml sdk 在excel中复制指定的工作表

1.首先在测算表中新增一张工作表sheet;

2.克隆数据源表的数据节；

3.将克隆好的工作表添加到测算表中；

public void CopyExcel()
        {

            using (dop.SpreadsheetDocument doc = dop.SpreadsheetDocument.Open(excelpath, true))
            {
                   var sheetName ="sheet";
                    //复制相应表格
                    InsertWorksheet(doc, sheetName );
                
                doc.Close();
            }
        }

public void InsertWorksheet(dop.SpreadsheetDocument doc, string sourceSheetName)
        {
            try
            {
　　　　　　　　　　　　　var sheetName="新建表";
                    var IsTrue = doc.WorkbookPart.Workbook.Descendants<dos.Sheet>().Where(p => p.Name == sheetName).Any();
                    if (!IsTrue)
                    {
                        // Add a blank WorksheetPart.
                        dop.WorksheetPart newWorksheetPart = doc.WorkbookPart.AddNewPart<dop.WorksheetPart>();
                        newWorksheetPart.Worksheet = new dos.Worksheet(new dos.SheetData());
                        dos.Sheets sheets = doc.WorkbookPart.Workbook.GetFirstChild<dos.Sheets>();
                        string relationshipId = doc.WorkbookPart.GetIdOfPart(newWorksheetPart);

                        // Get a unique ID for the new worksheet.
                        uint sheetId = 1;
                        if (sheets.Elements<dos.Sheet>().Count() > 0)
                        {
                            sheetId = sheets.Elements<dos.Sheet>().Select(s => s.SheetId.Value).Max() + 1;
                        }
                        // Give the new worksheet a name.

                        // Append the new worksheet and associate it with the workbook.
                        dos.Sheet sheet = new dos.Sheet() { Id = relationshipId, SheetId = sheetId, Name = sheetName };
                        sheet.State = dos.SheetStateValues.Hidden;
                        GetCopyExcel(doc, sourceSheetName, newWorksheetPart);
                        sheets.Append(sheet);
                        System.Diagnostics.Debug.Write(sheetName + "
");
                    }

                }
            }
            catch (Exception ex)
            {
                EasyLogs.LogInstance.Write(ex.Message, MessageType.Error);
            }

        }

public void GetCopyExcel(dop.SpreadsheetDocument document, string sourceSheetName, dop.WorksheetPart newWorkSheet, int columnIdnex)
        {
            try
            {
                dop.WorkbookPart workbook = document.WorkbookPart;
                dos.Sheet sheet = document.WorkbookPart.Workbook.Descendants<dos.Sheet>().Where(p => p.Name == sourceSheetName).First();
                dop.WorksheetPart sourcePart = (dop.WorksheetPart)document.WorkbookPart.GetPartById(sheet.Id);
                //克隆源表的数据节
                newWorkSheet.Worksheet = (dos.Worksheet)sourcePart.Worksheet.CloneNode(true);

                workbook.Workbook.Save();
            }
            catch (Exception ex)
            {
                EasyLogs.LogInstance.Write(ex.Message, MessageType.Error);
            }
        }