[英]Copying Xth sheet from N Excel workbooks into a new workbook-which language to use?
[英]Looping through Excel workbooks, copying a range of cells from each and pasting to a master workbook
嗨:我很高興你們都在那里,因為應該如此簡單的事情似乎並不適合我。
背景:我正在嘗試使用C#打開Excel工作簿(使用OpenFileDialog選擇它-稱為“ Gradebook”)。 然后,我遍歷多個Excel工作簿(在我用FolderBrowserDialog選擇的文件夾中-將文件名保存在字符串[]中)。 我希望一個一個地打開每個工作簿,從每個工作簿中提取一系列數據並將其粘貼到“ Gradebook”中。 到目前為止,捕獲數組中的文件名是可行的,選擇單個工作簿並打開它的功能也是如此。
問題:我在使用foreach語句時遇到問題。 當我遍歷工作簿時,以下行: Excel.Workbook stdWorkbook = excelApp.Workbooks.Open(stdFile)
出現錯誤:“名稱stdFile在上下文中不存在”。
另外,我對編程還很陌生,似乎在查找任何足以解釋Excel和C#互操作的問題時遇到了問題。 我將不勝感激向好的來源的任何方向。
using System;
using System.IO;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Excel = Microsoft.Office.Interop.Excel; //Use Project add reference to add the Microsoft Excel Object library, then add this statement
using System.Reflection;
namespace ExcelLoadStdDataToGradingSheet
{
public partial class Form1 : Form
{
public string[] fileNames;
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
// select the folder with the student assignment
FolderBrowserDialog fbd = new FolderBrowserDialog();
fbd.Description = "Browse to find Folder with student assignments to open";
fbd.SelectedPath = "C:\\Users\\Robert\\Google Drive\\Programming";
DialogResult result = fbd.ShowDialog();
if (result == DialogResult.OK)
{
string[] fileNames = Directory.GetFiles(fbd.SelectedPath);
System.Windows.Forms.MessageBox.Show("Files found: " + fileNames.Length.ToString(), "Message");
}
}
private void button2_Click(object sender, EventArgs e)
{
// Select the Excel file used for grading and open it
OpenFileDialog dialog = new OpenFileDialog(); // Open dialog box to select desired Excel file. Next 3 line adjust that browser dialog
dialog.Title = "Browse to find Grade Sheet to open";
dialog.InitialDirectory = @"c:\\Users\\Robert\\Google Drive\\Programming";
dialog.ShowDialog();
string GradeExcel = dialog.FileName;
Excel.Application excelApp = new Excel.Application(); //This creates the Excel application instance "excelApp"
excelApp.Visible = true;
Excel.Workbook GradeBook = excelApp.Workbooks.Add(GradeExcel);
// Loop to open every student file, extract filename, name, Red ID, and creation date
foreach (string stdFile in fileNames);
{
// Open student Workbook and copy data from "Hidden" Worksheet
//Excel.Application newApp = new Excel.Application(); //This creates the Excel application instance "newApp"
Excel.Workbook stdWorkbook = excelApp.Workbooks.Open(stdFile); //Open student Workbooks
Excel.Worksheet xlWorksheet = stdWorkbook.Sheets["Hidden"];
Excel.Range xlRange = xlWorksheet.Range["A2:E2"];
// Paste student information to the Grade Sheet
// Workbooks(GradeBook).Sheets("GradingSheet").Range("SetActiveCell").Select.Paste; //' start pasting in "A5";
// SetActiveCell = ActiveCell.Offset(1, 0).Select;
// workbooks("StdWorkbook").close savechanges:=false;
}
// workbooks("Gradingbook").close savechanges:=true;
}
}
}
foreach (string stdFile in fileNames);
該行末尾的分號立即終止了該語句,因此在下面的代碼中stdFile
不可用。 刪除分號。
在dotnetperls上有Excel Interop的簡單介紹。
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