从多个excel文档中读取数据并将其写入另一个excel文档
目前我只能读一个excel文档，并用我得到的代码写入。 现在我想读出多个Excel文档，并将数据写入一个。 现在我得到了一个明确的代码到一个文件，但这不是我想要的。 我了解目前我得到的代码的结构，所以我宁愿留下来。 我怎么用excel_init函数和excel_init函数来做到这一点？
这是我到现在为止：
static void Main(string[] args) { excel_init("C:\\Users\\Admin\\Desktop\\excel1.xlsx"); List<string> list = new List<string>(); for (int i = 1; i <= 10; i++) { string firstColomExcelFile1 = "A" + i; string allExcelDataFile1 = excel_getValue(firstColomExcelFile1); excel_setValue("B" + i, allExcelDataFile1); //this has to happen in a different excel doc, on sheet 2 list.Add(allExcelDataFile1); Console.WriteLine(allExcelDataFile1); } excel_close(); excel_init("C:\\Users\\Admin\\Desktop\\excel1.xlsx"); for (int j = 1; j < 5; j++) // loop for other excel document { string firstColomExcelFile2 = "A" + i; string allExcelDataFile2 = excel_getValue(firstColomExcelFile2); excel_setValue("C" + i, allExcelDataFile2); Console.WriteLine(allExcelDataFile2); } excel_close(); // here I want to paste my lists in another doc file. Console.WriteLine("Press key to continue"); Console.ReadKey(); } private static Microsoft.Office.Interop.Excel.ApplicationClass appExcel; private static Workbook newWorkbook = null; private static _Worksheet objsheet = null; //Method to initialize opening Excel static void excel_init(String path) { appExcel = new Microsoft.Office.Interop.Excel.ApplicationClass(); if (System.IO.File.Exists(path)) { // then go and load this into excel newWorkbook = appExcel.Workbooks.Open(path, true, true); objsheet = (_Worksheet)appExcel.ActiveWorkbook.ActiveSheet; } else { Console.WriteLine("Unable to open file!"); System.Runtime.InteropServices.Marshal.ReleaseComObject(appExcel); appExcel = null; } } static void excel_setValue(string cellname, string value) { objsheet.get_Range(cellname).set_Value(Type.Missing, value); } //Method to get value; cellname is A1,A2, or B1,B2 etc...in excel. static string excel_getValue(string cellname) { string value = string.Empty; try { value = objsheet.get_Range(cellname).get_Value().ToString(); } catch { value = ""; } return value; } //Method to close excel connection static void excel_close() { if (appExcel != null) { try { newWorkbook.Close(); System.Runtime.InteropServices.Marshal.ReleaseComObject(appExcel.ActiveWorkbook.ActiveSheet); System.Runtime.InteropServices.Marshal.ReleaseComObject(appExcel.ActiveWorkbook); System.Runtime.InteropServices.Marshal.ReleaseComObject(appExcel); appExcel = null; objsheet = null; } catch (Exception ex) { appExcel = null; Console.WriteLine("Unable to release the Object " + ex.ToString()); } finally { GC.Collect(); } } }
提前致谢
编辑：我现在阅读Excel文件分开，并把信息列表。 现在我只想把最后的excel文件另存为xxx.xlsx
编辑2：修正了把它放在我的excel_init函数中：
static void excel_init(String path) { appExcel = new Microsoft.Office.Interop.Excel.ApplicationClass(); if (System.IO.File.Exists(path)) { // then go and load this into excel //newWorkbook_Second = appExcel.Workbooks.Open(path, true, true); newWorkbook_First = appExcel.Workbooks.Open(path, true, true); objsheet = (_Worksheet)appExcel.ActiveWorkbook.ActiveSheet; } else { try { appExcel = new Microsoft.Office.Interop.Excel.ApplicationClass(); appExcel.Visible = true; newWorkbook_First = appExcel.Workbooks.Add(1); objsheet = (Microsoft.Office.Interop.Excel.Worksheet)newWorkbook_First.Sheets[1]; } catch (Exception e) { Console.Write("Error"); } finally { } } }
不是很好的编码…但它的作品…
您需要一个FileManager类来照顾读取和写入文件。 然后使用文件pipe理器的实例读取多个文件并写入文件。 但是，读取path和写入path必须不同。
using System; using System.Collections.Generic; using System.Runtime.InteropServices; using Microsoft.Office.Interop.Excel; namespace MultipleExcelReadWriteExample { public class Program { private static void Main(string[] args) { // create a instance of the file manager var fileManager = new FileManager(); // add the list of file paths to collection fileManager.ListOfWorkbooksPath.Add("workBookToRead1", @"C:\ExcelFiles\WorkbookToRead1.xlsx"); fileManager.ListOfWorkbooksPath.Add("workBookToRead2", @"C:\ExcelFiles\WorkbookToRead2.xlsx"); fileManager.ListOfWorkbooksPath.Add("workBookToRead3", @"C:\ExcelFiles\WorkbookToRead3.xlsx"); fileManager.ListOfWorkbooksPath.Add("workBookToWrite1", @"C:\ExcelFiles\WorkbookToWrite1.xlsx"); // Open the excel app fileManager.OpenExcelApp(); // open all the workbooks fileManager.OpenWorkbooks(); // Do some data transfer here! int index = 1; foreach (var workbook in fileManager.ListOfWorkbooks) { if (workbook.Key.Contains("workBookToRead")) { // get the worksheet to read var readWorksheet = workbook.Value.Worksheets["Sheet1"] as Worksheet; // get the writing workbook Workbook workbookToWrite = fileManager.ListOfWorkbooks["workBookToWrite1"]; // get the worksheet to write var writeWorksheet = workbookToWrite.Worksheets["Sheet" + index] as Worksheet; //TODO: create a new sheet if doesn't exist for (int column = 1; column <= 10; column++) { for (int row = 1; row <= 10; row++) { // read the data from the worksheet Tuple<dynamic, dynamic> data = fileManager.ReadFromCell(readWorksheet, column, row); // write the data to the worksheet fileManager.WriteToCell(writeWorksheet, column, row, data); } } } index++; } // save all workbooks fileManager.SaveAllWorkbooks(); // close all workbooks fileManager.CloseAllWorkbooks(); // close the excel app fileManager.CloseExcelApp(); Console.WriteLine("Press key to continue"); Console.ReadKey(); } } public class FileManager { private Application _excelApp; /// <summary> /// Basic c'tor /// </summary> public FileManager() { ListOfWorkbooksPath = new Dictionary<string, string>(); ListOfWorkbooks = new Dictionary<string, Workbook>(); } /// <summary> /// List of workbook to read, with their name and path /// </summary> public Dictionary<string, string> ListOfWorkbooksPath { get; set; } public Dictionary<string, Workbook> ListOfWorkbooks { get; set; } /// <summary> /// Finalizer /// </summary> ~FileManager() { if (_excelApp != null) { _excelApp.Quit(); Marshal.ReleaseComObject(_excelApp); } _excelApp = null; } /// <summary> /// Open the Excel application /// </summary> public void OpenExcelApp() { _excelApp = new Application(); } /// <summary> /// Open list of workbooks for given path /// </summary> public void OpenWorkbooks() { foreach (var item in ListOfWorkbooksPath) { if (!ListOfWorkbooks.ContainsKey(item.Key)) { Workbook workbook = _excelApp.Workbooks.Open(item.Value); ListOfWorkbooks.Add(item.Key, workbook); } } } /// <summary> /// Read a cell and return the value and the cell format /// </summary> /// <param name="worksheet">The worksheet to read the value from.</param> /// <param name="column">The column number to read the value from.</param> /// <param name="row">The row number to read the value from.</param> /// <returns>The value and cell format.</returns> public Tuple<dynamic, dynamic> ReadFromCell(Worksheet worksheet, int column, int row) { var range = worksheet.Cells[row, column] as Range; if (range != null) { dynamic value = range.Value2; // get the value of the cell dynamic format = range.NumberFormat; // get the format of the cell return new Tuple<dynamic, dynamic>(value, format); } return null; } /// <summary> /// Write the data to a cell in worksheet. /// </summary> /// <param name="worksheet">The worksheet to write the value.</param> /// <param name="column">The column number to write the value.</param> /// <param name="row">The row number to write the value.</param> /// <param name="data">The data to be written to a cell; this is a Tuple that contains the value and the cell format.</param> public void WriteToCell(Worksheet worksheet, int column, int row, Tuple<dynamic, dynamic> data) { var range = worksheet.Cells[row, column] as Range; if (range != null) { range.NumberFormat = data.Item2; // set the format of the cell range.Value2 = data.Item1; // set the value of the cell } } /// <summary> /// Save all workbooks /// </summary> public void SaveAllWorkbooks() { foreach (var workbook in ListOfWorkbooks) { SaveWorkbook(workbook.Value); } } /// <summary> /// Save single workbook /// </summary> /// <param name="workbook"></param> public void SaveWorkbook(Workbook workbook) { workbook.Save(); } /// <summary> /// Close all workbooks /// </summary> public void CloseAllWorkbooks() { foreach (var workbook in ListOfWorkbooks) { CloseWorkbook(workbook.Value); } ListOfWorkbooks.Clear(); } /// <summary> /// Close single workbook /// </summary> /// <param name="workbook"></param> public void CloseWorkbook(Workbook workbook) { workbook.Close(); } /// <summary> /// Close the Excel Application /// </summary> public void CloseExcelApp() { if (_excelApp != null) { _excelApp.Quit(); } _excelApp = null; ListOfWorkbooksPath.Clear(); } } }
您可以打开多个工作簿
newWorkbook_Second = appExcel.Workbooks.Open(pathforanotherworkbook, true, true);