使用 VBA 从 Access 运行后从任务管理器中删除 Excel 任务

Question

我现在借机在这里问一下，我确实尝试了很多不同的方法，但是我似乎无法关闭任务管理器中的Excel任务，直到我关闭Access才会挂起完全，烦人，因为我无法使用 Access 中的 Excel 运行两个不同的作业。第二份工作会给我错误。

我已经做了一些 cmets，我仍然可以摆脱 Excel。 该代码的目的是运行一些查询并将数据导出到excel，然后锁定excel表，以便用户只能填写数据的答案。

代码：

Private Sub Command65_Click()
Dim r As Double
'On Error GoTo Error_Handler
Dim objExcel As Excel.Application
Dim objWorkbook As Workbook
Dim objWorksheet As Worksheet
Dim dbs As DAO.Database
Dim rSt As DAO.Recordset
Set dbs = CurrentDb
Set rSt = CurrentDb.OpenRecordset("qry_VC_Confirmation")

Set objExcel = CreateObject("Excel.Application")
objExcel.Visible = True

'objExcel.Quit  ' at this point it still works to close again
'Set objExcel = Nothing ' at this point it will remove from task manager

Set objWorkbook = objExcel.Workbooks.Add
Set objWorksheet = objWorkbook.Worksheets(1)

'Set objWorkbook = Nothing ' can close still at this stage
'Set objWorksheet = Nothing ' can close still at this stage
'objExcel.Quit  ' at this point it still works to close again ?
'Set objExcel = Nothing ' at this point it still will not remove from task manager

iFld = 0
irow = 1
For icol = 1 To (rSt.Fields.count)
    objWorksheet.Cells(irow, icol) = rSt.Fields(iFld).Name
    objWorksheet.Cells(irow, icol).Interior.ColorIndex = 1
    objWorksheet.Cells(irow, icol).Font.ColorIndex = 2
    objWorksheet.Cells(irow, icol).Font.Bold = True
    iFld = iFld + 1
Next

'Set objWorkbook = Nothing '
'Set objWorksheet = Nothing '
'objExcel.Quit  ' at this point it still works to close Excel again ?
'Set objExcel = Nothing ' at this point it will still remove from task manager

irow = 2
If Not rSt.BOF Then rSt.MoveFirst
Do Until rSt.EOF
    iFld = 0
    lRecords = lRecords + 1
    For icol = 1 To (rSt.Fields.count)
        objWorksheet.Cells(irow, icol) = rSt.Fields(iFld)
        iFld = iFld + 1
        Next
        irow = irow + 1
        rSt.MoveNext
Loop
r = irow - 1
Columns("A:F").EntireColumn.AutoFit

ActiveSheet.Protection.AllowEditRanges.Add Title:="Unprotected", Range:=Range("F2:F" & r)
ActiveSheet.Protect DrawingObjects:=True, Contents:=True, Scenarios:=True, Password:="secret"

objWorkbook.SaveAs ("C:\Dropbox\VC_Confirmation.xlsx")

ExitSub:
Set objWorkbook = Nothing '
Set objWorksheet = Nothing '
objExcel.Quit  ' at this point it still works to close excel again ?
Set objExcel = Nothing ' at this point it will **NOT** remove from task manager

Exit Sub

Error_Handler:
MsgBox Error$
Resume ExitSub

End Sub

Answer 1

在您提到的 cmets 中，您已重置代码（即按下停止按钮）。这意味着杀死 excel 的代码部分没有运行，因此留下了一个开放的 excel 会话。您的代码存在一个小问题（可能是语义问题），但我认为这不是导致您问题的原因。无论如何，您应该像这样正确关闭应用程序。

ExitSub:
    If Not objWorksheet Is Nothing Then
        set objWorksheet = Nothing
    End If
    ' You have to check for the workbook's existence before 
    '    you try to close something that isn't there. This avoids runtime errors.
    '    Since your error handler points you back here, this code always runs, so
    '    The workbook might not be open.
    If Not objWorkbook Is Nothing Then
        objWorkbook.close
        Set objWorkbook = Nothing
    End If
    ' Same goes for quitting the application
    If Not objExcel Is Nothing Then
        objExcel.Quit
        Set objExcel = Nothing
    End If

    Exit Sub
Error_Handler:
    ' error handling code here
     Resume ExitSub
End Sub

Answer 2

Columns("A:F").EntireColumn.AutoFit

添加作为答案以防万一。使用工作表名称完全限定它，然后重试。同样的问题对我来说也是一个巨大的困扰。无论如何，您必须 100% 符合您的推荐信。另外，在范围、工作表等上使用 With 语句时要格外小心。所以将其更改为 ObjWorksheet.Columns("A:F")...