Question

我为CSV编写了一个宏来进行超过65 k行的excel导入。我通过按钮点击从c＃调用宏。在宏中我编写代码来逐行读取文本文件并添加到coloumn。最后，我选择整个coloumn，并使用逗号分隔启用“Text to coloumns”导出到excel。

问题是，它只导出第一行。

请帮助我。

Sub Read(FileName As String)
 'Dimension Variables
      Dim ResultStr As String
      'Dim FileName As String
      Dim FileNum As Integer
      Dim Counter As Double
      'Ask User for File's Name
      'FileName = InputBox("Please enter the Text File's name, e.g. test.txt")
      'Check for no entry
      If FileName = "" Then End
      'Get Next Available File Handle Number
      FileNum = FreeFile()
      'Open Text File For Input
      Open FileName For Input As #FileNum
      'Turn Screen Updating Off
      Application.ScreenUpdating = False
      'Create A New WorkBook With One Worksheet In It
      Workbooks.Add template:=xlWorksheet
      'Set The Counter to 1
      Counter = 1
      'Loop Until the End Of File Is Reached
      Do While Seek(FileNum) <= LOF(FileNum)
         'Display Importing Row Number On Status Bar
          Application.StatusBar = "Importing Row " & _
             Counter & " of text file " & FileName
          'Store One Line Of Text From File To Variable
          Line Input #FileNum, ResultStr
          'Store Variable Data Into Active Cell
          If Left(ResultStr, 1) = "=" Then
             ActiveCell.Value = "'" & ResultStr
          Else
             ActiveCell.Value = ResultStr
          End If

          'For xl97 and later change 16384 to 65536
          If ActiveCell.Row = 65536 Then
                ActiveWorkbook.ActiveSheet.Columns(1).Select
                Selection.TextToColumns DataType:=xlDelimited, _
                ConsecutiveDelimiter:=True, Space:=False, Comma:=True
                'If On The Last Row Then Add A New Sheet
                ActiveWorkbook.Sheets.Add
          Else
             'If Not The Last Row Then Go One Cell Down
             ActiveCell.Offset(1, 0).Select
          End If
          'Increment the Counter By 1
          Counter = Counter + 1
      'Start Again At Top Of 'Do While' Statement
      Loop
      'Close The Open Text File
      Close
      ActiveWorkbook.ActiveSheet.Columns(1).Select
      Selection.TextToColumns DataType:=xlDelimited, _
      ConsecutiveDelimiter:=True, Space:=False, Comma:=True
      'Remove Message From Status Bar
      Application.StatusBar = False
End Sub

C sharp按钮点击事件，

private void button1_Click(object sender, EventArgs e)
        {
            file_Writer = new StreamWriter(@"c:\tstf.csv",true);
            //file_Writer.Close();
            //first row
            for (int i = 0; i < 8; i++)
            {
                file_Writer.Write("A,");
            }
            file_Writer.Write("\n");


            // second row

            for (int i = 0; i < 8; i++)
            {
                file_Writer.Write("B,");
            }

            file_Writer.Close();

            Thread.Sleep(1000);


            object oMissing = System.Reflection.Missing.Value;

            Excel.ApplicationClass oExcel = new Excel.ApplicationClass();
            oExcel.Visible = true;
            Excel.Workbooks oBooks = oExcel.Workbooks;
            Excel._Workbook oBook = null;
            oBook = oBooks.Open("F:\\read.xls", oMissing, oMissing,
                oMissing, oMissing, oMissing, oMissing, oMissing, oMissing,
                oMissing, oMissing, oMissing, oMissing, oMissing, oMissing);

            // Run the macros.
            //RunMacro(oExcel, new Object[] { "DoKbTest" });
            RunMacro(oExcel, new Object[] { "siva1", @"c:\tstf.csv" });


            // Quit Excel and clean up.
            oBook.Close(false, oMissing, oMissing);
            System.Runtime.InteropServices.Marshal.ReleaseComObject(oBook);
            oBook = null;
            System.Runtime.InteropServices.Marshal.ReleaseComObject(oBooks);
            oBooks = null;
            oExcel.Quit();
            System.Runtime.InteropServices.Marshal.ReleaseComObject(oExcel);
            oExcel = null;


            GC.Collect();
        }

Answer 1

您的Do While条件无法正常工作。试试：

Do until Eof(FileNum)
   ....
Loop

和/或问题是由于您没有正确关闭输出文件。尝试：
Close Filenum

Answer 2

我找到了问题的原因。这是由于回车“\ n”。我在行尾添加“\ r \ n”而不是“\ n”。

file_Writer.Write("\r\n");

宏仅导出第一行

2 个答案: