将Excel工作表数据导出为csv格式

在我的应用程序中，我可以导入csv文件，但我在Excel表中有数据，所以我需要将其转换为csv格式。我得到了来自净代码为Excel导出数据到CSV时，我下载的是压缩文件，然后运行它的工作，但是当我这个程序复制到VS 2008和运行它，它不工作将Excel工作表数据导出为csv格式

的代码是

using System; 
using System.IO; 
using System.Data; 
using System.Data.OleDb; 
using System.Collections.Generic; 
using System.Text; 

namespace XlsToCsv 
{ 
    class Program 
    { 
     static void Main(string[] args) 
     { 
      string sourceFile, worksheetName, targetFile; 
      sourceFile = @"D:\emp.xls";worksheetName = "sheet1"; targetFile = @"D:\empcsv.csv"; 
      convertExcelToCSV(sourceFile, worksheetName, targetFile); 
     } 

     static void convertExcelToCSV(string sourceFile, string worksheetName, string targetFile) 
     { 
      string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + sourceFile + ";Extended Properties=\" Excel.0;HDR=Yes;IMEX=1\""; 
      OleDbConnection conn = null; 
      StreamWriter wrtr = null; 
      OleDbCommand cmd = null; 
      OleDbDataAdapter da = null; 
      try 
      { 
       conn = new OleDbConnection(strConn); 
       conn.Open(); 

       cmd = new OleDbCommand("SELECT * FROM [" + worksheetName + "$]", conn); 
       cmd.CommandType = CommandType.Text; 
       wrtr = new StreamWriter(targetFile); 

       da = new OleDbDataAdapter(cmd); 
       DataTable dt = new DataTable(); 
       da.Fill(dt); 

       for (int x = 0; x < dt.Rows.Count; x++) 
       { 
        string rowString = ""; 
        for (int y = 0; y < dt.Columns.Count; y++) 
        { 
         rowString += "\"" + dt.Rows[x][y].ToString() + "\","; 
        } 
        wrtr.WriteLine(rowString); 
       } 
       Console.WriteLine(); 
       Console.WriteLine("Done! Your " + sourceFile + " has been converted into " + targetFile + "."); 
       Console.WriteLine(); 
      } 
      catch (Exception exc) 
      { 
       Console.WriteLine(exc.ToString()); 
       Console.ReadLine(); 
      } 
      finally 
      { 
       if (conn.State == ConnectionState.Open) 
        conn.Close(); 
       conn.Dispose(); 
       cmd.Dispose(); 
       da.Dispose(); 
       wrtr.Close(); 
       wrtr.Dispose(); 
      } 
     } 
    } 
}

这样

System.Data.OleDb.OleDbException: Could not find installable ISAM. 

    at System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString cons 
tr, OleDbConnection connection) 

    at System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOpti 
ons options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection o 
wningObject) 

    at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbC 
onnection owningConnection, DbConnectionPoolGroup poolGroup) 

    at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection ow 
ningConnection) 

    at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection ou 
terConnection, DbConnectionFactory connectionFactory) 

    at System.Data.OleDb.OleDbConnection.Open() 

    at Excel_To_csv.Program.convertExcelToCSV(String sourceFile, String worksheet 
Name, String targetFile) in D:\Excel to csv\Excel To csv\Excel To csv\Program.cs 
:line 41

其投掷的错误这是为什么错误来了，我不知道

来源

2011-07-16 Sweety

您的错误可能是由于excel驱动程序问题引起的，但并非100％确定，但是由于某些所需的dll缺少您的计算机而导致此错误。

您可以通过将MDAC安装到您的计算机并尝试执行此操作来解决此问题。

如果它没有解决，你可以使用下面的粘贴代码，这是我写的只是作为你的问题的答案，但首先我应该告诉你下面的代码部分是不高效的，如果转换文件有相当多的数字记录的前65000

要使用下面的代码部分，你需要添加下面参考

using Excel = Microsoft.Office.Interop.Excel; 
using Office = Microsoft.Office.Core;

功能

private void EXCELTOCSV() 
    { 
     OpenFileDialog excelSheetToOpen = new OpenFileDialog(); 
     excelSheetToOpen.Filter = "Excel 97- 2003 WorkBook (*.xls)| *.xls | Excel 2007 WorkBook (*.xlsx) | *.xlsx | All files (*.*)|*.*"; 
     excelSheetToOpen.FilterIndex = 3; 
     excelSheetToOpen.Multiselect = false; 



     if (excelSheetToOpen.ShowDialog() == DialogResult.OK) 
     { 

      Excel.Application excelApp = new Excel.Application(); 
      String workbookPath = excelSheetToOpen.FileName; 
      Excel.Workbook excelWorkbook = excelApp.Workbooks.Open(workbookPath); 
      Excel.Sheets excelWorkBookSheets = excelWorkbook.Sheets; 

      Excel.Range _UsedRangeOftheWorkSheet; 


      foreach (Excel.Worksheet _Sheet in excelWorkBookSheets) 
      { 
       if (_Sheet.Name =="ExcelSheetName") 
       { 

        _UsedRangeOftheWorkSheet = _Sheet.UsedRange; 

        Object[,] s = _UsedRangeOftheWorkSheet.Value; 

        System.IO.StreamWriter sw = new System.IO.StreamWriter("FileName.csv", true); 

        for (int b = 0; b < s.Length; b++) 
        { 
         StringBuilder sb = new StringBuilder(); 
         for (int c = 0; c < s.Rank; c++) 
         { 
          if (sb == null) 
          { 
           sb.Append((String)s[b, c]); 
          } 
          else 
          { 
           sb.Append("," + (String)s[b, c]); 
          } 
         } 
         sw.WriteLine(sb.ToString()); 
        } 
        sw.Close(); 

       } 
      } 

     } 
    }

何PE这将为你工作

谢谢。

来源

2011-07-16 08:13:24 Prabhakantha