我想重命名指定的工作表并在其上放置一些处理过的数据，但是下面的代码（看起来和我在这个和其他网站上找到的每个例子几乎相同）只是赢得了我想要的东西：
try
{
xl.Worksheet = (ExcelRefer.Worksheet) xl.Workbook.Worksheets.get_Item("Sheet1");
xl.Worksheet.Name = "Smoothed result";
xl.Workbook.Save();
xl.Range = xl.Worksheet.UsedRange;
Debug.WriteLine("Saved");
}
catch(Exception exception)
{
MessageBox.Show(exception.Message);
}
永远不会抛出异常，因此代码不包含任何错误，但我打开的文档中的工作表仍然具有相同的名称。
Debug.WriteLine(...)
方法并正确显示输出。当我告诉工作簿保存时，它甚至会问我是否要覆盖现有文件。谁能告诉我我做错了什么？
修改：
xl是一个类的对象，包含使用excel的所有必要元素。
using ExcelRefer = Microsoft.Office.Interop.Excel;
using Microsoft.Office.Tools.Excel;
using Microsoft.VisualBasic;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Windows.Forms;
using ZedGraph;
class XLSXMulti
{
private static List<int[]> dataPositions = new List<int[]>();
private static PointPairList measureData = new PointPairList();
private static PointPairList[] dataComparison = new PointPairList[2];
private static bool smoothing = false;
private static bool measureDataFound = false;
private static bool fileFinished = false;
private static string[] excelFilePaths;
private static string[] temp;
private static int numberOfSamples;
private static BackgroundWorker[] bwg;
private static ProgressBar pbExcel;
public static void Init(string[] filePaths, ProgressBar pb, bool smooth)
{
excelFilePaths = filePaths;
pbExcel = pb;
smoothing = smooth;
measureData.Clear();
dataPositions.Clear();
temp = Interaction.InputBox("Number of consecutive values to be used " +
"for smoothing and the iteration step. These values" +
" will be used for all selected files.\n" +
"IMPORTANT: The two values have to be separated with a ','!",
"Select grade of smoothing",
"5,1", 500, 480).Split(',');
bwg = new BackgroundWorker[Environment.ProcessorCount];
for(int i = 0; i < bwg.Length; i ++)
{
bwg[i] = new BackgroundWorker();
}
foreach(BackgroundWorker bw in bwg)
{
bw.DoWork += bwg_doWork;
bw.ProgressChanged += bwg_ProgressChanged;
bw.RunWorkerCompleted += bwg_RunworkerCompleted;
bw.WorkerSupportsCancellation = true;
bw.WorkerReportsProgress = true;
}
List<string>[] filesForWorkers = new List<string>[bwg.Length];
for(int i = 0; i < filesForWorkers.Length; i ++)
{
filesForWorkers[i] = new List<string>();
}
int filesPerWorker = filePaths.Length / bwg.Length;
int workerindex = 0;
MessageBox.Show("filesPerWorker: " + filesPerWorker + "\n" +
"filePaths: " + filePaths.Length + "\n" +
"bwg: " + bwg.Length);
for(int i = 0; i < filePaths.Length; i ++)
{
filesForWorkers[workerindex].Add(filePaths[i]);
workerindex ++;
if(workerindex == bwg.Length)
{
workerindex = 0;
}
}
for(int i = 0; i < bwg.Length; i ++)
{
bwg[i].RunWorkerAsync(filesForWorkers[i]);
}
}
private static void bwg_doWork(object sender, DoWorkEventArgs e)
{
List<string> filelist = e.Argument as List<string>;
Excelattributes xl = new Excelattributes();
foreach(string s in filelist)
{
try
{
xl.App = new ExcelRefer.Application();
xl.Workbook = xl.App.Workbooks.Open(s, 0, true, 5, "", "", true,
Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0);
xl.Worksheet = (ExcelRefer.Worksheet)xl.Workbook.Worksheets.get_Item(1); // Zugriff auf eingegebenes Tabellenblatt
xl.Range = xl.Worksheet.UsedRange;
findMeasureData(xl);
if(xl.Workbook != null){xl.Workbook.Close(true, null, null);}
if(xl.App != null) {xl.App.Quit();}
}
catch(Exception exception)
{
MessageBox.Show(exception.Message, "Exception");
}
finally
{
if(xl.Workbook != null){xl.Workbook.Close(true, null, null);}
if(xl.App != null) {xl.App.Quit();}
}
}
}
private static void bwg_ProgressChanged(object sender, ProgressChangedEventArgs e)
{
// TODO: implement some sort of progress reporting
}
private static void bwg_RunworkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
Statuslabel.label.Text = "Backgroundworker finished";
(sender as BackgroundWorker).Dispose();
}
private static void findMeasureData(Excelattributes xl)
{
// Erste 15 Zeilen durchgehen, um herauszufinden wo die Messwerte beginnen (9 + 6 Sicherheit)
// Nur bis inkl. Spalte AZ
try
{
for(int zeile = 1; zeile <= 15; zeile ++)
{
for(int spalte = 1; spalte <= 52; spalte ++)
{
// WICHTIG: (xl.Range...).Text verwenden, um Nullreferenceexception zu vermeiden [?]
Object zelleninhalt = (xl.Range.Cells[zeile, spalte] as ExcelRefer.Range).Text;
if(zelleninhalt.Equals("DATA START"))
{
dataPositions.Add(new int[2] {zeile +1, spalte +1});
measureDataFound = true;
}
else if(zelleninhalt.Equals("Number of Samples"))
{
numberOfSamples = Convert.ToInt32((xl.Range.Cells[zeile, spalte+1] as
ExcelRefer.Range).Text);
}
}
}
if(measureDataFound == true)
{
int[,] temp = new int[dataPositions.Count, 2];
for(int i = 0; i < dataPositions.Count; i ++)
{
temp[i, 0] = dataPositions.ElementAt(i).ToArray()[0];
temp[i, 1] = dataPositions.ElementAt(i).ToArray()[1];
}
readMeasureData(temp, xl);
}
}
catch(Exception exception)
{
MessageBox.Show(exception.Message, "Exception");
}
}
private static void readMeasureData(int[,] temp, Excelattributes xl)
{
int[,] zellen = temp;
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
for(int i = zellen[0,0]; i < (zellen[0,0] + numberOfSamples); i ++)
{
try
{
double weg = Convert.ToDouble((xl.Range.Cells[i, zellen[0,1]] as ExcelRefer.Range).Value2);
double kraft = Convert.ToDouble((xl.Range.Cells[i, zellen[1,1]] as ExcelRefer.Range).Value2);
measureData.Add(new PointPair(weg, kraft));
}
catch(Exception exception)
{
MessageBox.Show(exception.Message, "Exception");
Application.Exit();
}
}
stopwatch.Stop();
MessageBox.Show(stopwatch.ElapsedMilliseconds / 1000 + " Sekunden");
dataComparison[0] = measureData;
if(smoothing == true)
{
smoothMeasureData(xl);
}
}
private static void smoothMeasureData(Excelattributes xl)
{
if(temp != null)
{
try
{
int[] smoothParameters = new int[]{Convert.ToInt32(temp[0]), Convert.ToInt32(temp[1])};
if(smoothParameters[1] == 0) {smoothParameters[1] = 1;}
PointPairList smoothedData = new PointPairList();
MessageBox.Show("Glätte...\n" + smoothParameters[0] + " " + measureData.Count);
for(int i = (smoothParameters[0] -1); i < measureData.Count; i += smoothParameters[1])
{
double durchschnittX = 0;
double durchschnittY = 0;
for(int x = i; x > (i - (smoothParameters[0])); x --)
{
durchschnittX += measureData.ElementAt(x).X;
durchschnittY += measureData.ElementAt(x).Y;
}
durchschnittX /= (double) smoothParameters[0];
durchschnittY /= (double) smoothParameters[0];
smoothedData.Add(new PointPair(durchschnittX, durchschnittY));
}
dataComparison[0] = measureData;
dataComparison[1] = smoothedData;
writeToXLSX(smoothedData, xl);
}
catch(Exception exception)
{
MessageBox.Show(exception.Message, "Exception");
}
}
}
private static void writeToXLSX(PointPairList smoothedData, Excelattributes xl)
{
try
{
xl.Worksheet = (ExcelRefer.Worksheet) xl.Workbook.Worksheets.get_Item("Sheet1");
xl.Worksheet.Name = "Smoothed result";
xl.Workbook.Save();
xl.Workbook.Close(true, null, null);
xl.Range = xl.Worksheet.UsedRange;
Debug.WriteLine("Saved");
}
catch(Exception exception)
{
MessageBox.Show(exception.Message);
}
}
}
答案 0 :(得分：1)
你完成后是否尝试过关闭Excel？
我无法确定您从哪里获取xl，但以下代码适用于我：
Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();
Workbook book = xlApp.Workbooks.Open(@"C:\test.xlsx");
Worksheet xl = book.Worksheets.get_Item("sheet1");
xl.Name = "Smoothed result";
book.Save();
book.Close();
修改
看到用于打开工作簿的代码后，我认为存在问题。您正在使用以下方式打开文件：
xl.Workbook = xl.App.Workbooks.Open(s, 0, true, 5, "", "", true,
Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0);
第三个参数是ReadOnly参数，您已将其设置为true。尝试将其设置为false。