Excel:VBA和refreshall结束消息? [英] Excel: VBA and refreshall ended message?

问题描述

这是Excel 2003.我想知道外部查询需要多长时间才能完成，然后使用该ET更新电子表格中的单元格.我有以下内容，但它不起作用，因为ET仅与启动刷新所需的时间一样长:

This is Excel 2003. I'd like to know how long it takes an external query to complete and then update a cell in my spreadsheet with that ET. I have the following, but it doesn't work because the ET is only as long as it takes to initiate the refresh:

Sub Refresh()
    Dim StartTime, EndTime, ET

    StartTime = Timer
    ActiveWorkbook.RefreshAll
    EndTime = Timer
    ET = Format(EndTime - StartTime, "Fixed")
    Range("H27").Value = ET
    MsgBox (ET)
End Sub

因此，即使数据获取花费了10分钟之久，ET仍约为1秒.

So the ET is about 1 second, even though the data fetch takes a good 10 minutes.

一种简单的解决方法是将后台刷新设置为false，但这会阻塞整个应用程序，并使生活长期处于痛苦状态.

The easy way out is to set background refresh to false, but this blocks the whole application and makes life miserable for a long time.

我可以在VBA中捕获某种信号或异常，该信号或异常指示哦，后台刷新已完成；现在您可以停止计时器并计算ET"了.

Is there some kind of signal or exception that I can catch in VBA that indicates "oh, a background refresh is done; now you can stop your timer and calculate the ET"?

谢谢！

推荐答案

我想您需要使用AfterRefresh事件.
此处是一个论坛讨论，带有愉快的结局和示例.

I guess you need to use the AfterRefresh event.
Here is a forum discussion with a happy ending and examples.

仅出于链接独立性的目的，从引用的页面粘贴示例(您应该添加计时器存储和算术运算):

Pasting the example from the referred page, just for link independence (you should add your timer storage and arithmetic):

此代码在模块上进行:

Dim X As New Class1   
Sub Initialize_It()   
  Application.DisplayAlerts = False 
  Application.ScreenUpdating = True  
  diropen = "C:\Desktop\" 

  Workbooks.Open diropen & "Test.xls" , UpdateLinks:=0 

  Set X.qt = Workbooks("Test.xls").Sheets("Sheet1").QueryTables(1)   
  ActiveWorkbook.RefreshAll 

End Sub

此代码在类模块上运行:

Public WithEvents qt As QueryTable 
Private Sub qt_AfterRefresh(ByVal Success As Boolean) 
' Declare variables. 
Dim a As Integer 
Dim My_Prompt As String 

' Initialize prompt text for message box. 
My_Prompt = "Data refreshed or canceled."   

' Displays message box before refresh (or cancel) occurs. 
MsgBox My_Prompt 

ActiveWorkbook.Save 
Workbooks("Test.xls").Close 

End Sub

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