[英]Using MS Access to run code in excel vba
I pull a query off SQL Server using an access front-end.我使用访问前端从 SQL Server 中提取查询。 I then export the recordset to a new Excel workbook.
然后我将记录集导出到一个新的 Excel 工作簿。 I want to then use excel to run code that I have in Access.
然后我想使用 excel 来运行我在 Access 中的代码。 It simply loops through cells and adds formatting and checks for a certain value.
它只是遍历单元格并添加格式并检查某个值。 I can run it from access which will it has the workbook opens loops through fine.
我可以从访问中运行它,它将让工作簿打开循环。 However it is painfully slow.
然而,它是痛苦的缓慢。
If I go into excel and paste the code that access is running for the formatting and check.如果我进入excel并粘贴访问正在运行的代码以进行格式化并检查。 It runs within seconds.
它在几秒钟内运行。 But running it from access takes over 10 minutes.
但是从 access 运行它需要 10 多分钟。
Anyone got any ideas if this can be done?如果可以做到这一点,有人有任何想法吗?
I've put this code in the "ThisWorkbook" object in Excel:我已将此代码放在 Excel 的“ThisWorkbook”对象中:
Public Sub TestScript()
Debug.Print "Hello"
End Sub
And then successfully called it from Access using a button on a form:然后使用表单上的按钮从 Access 成功调用它:
Private Sub cmdRunExcel_Click()
Dim xl As Excel.Application
Set xl = CreateObject("Excel.Application")
xl.Visible = True
xl.Workbooks.Open "C:/Your/FolderPath/And/FileName.xlsx", True, False
xl.Run "ThisWorkbook.TestScript"
Set xl = Nothing
End Sub
Admittedly I've not given it a lot of code to run, but here the code is at least running on Excel, from Excel ... which must be better than trying to run code on Excel from Access.不可否认,我没有给它很多代码来运行,但这里的代码至少在 Excel 上运行,从 Excel ......这肯定比尝试从 Access 在 Excel 上运行代码要好。
Update : See if you can create the module from Access to Excel by testing this (I can't test it properly because I'm using a work computer and it seems to be not letting me run this type of code due to security settings)更新:看看您是否可以通过测试从 Access 到 Excel 创建模块(我无法正确测试它,因为我使用的是工作计算机,而且由于安全设置,它似乎不允许我运行此类代码)
Private Sub cmdRunExcel_Click()
Dim xl As Excel.Application
Dim myWrkBk As Excel.Workbook
Dim myModule As VBComponent
Dim strVb As String
Set xl = CreateObject("Excel.Application")
xl.Visible = True
xl.Workbooks.Open "C:/Your/FolderPath/And/FileName.xlsx", True, False
Set myWrkBk = xl.Workbooks.Add
Set myModule = myWrkBk.VBProject.VBComponents.Add(vbext_ct_StdModule)
strVb = "Public Sub TestScript()" & vbCrLf _
& "Debug.Print 'Hello'" _
& "End Sub"
myModule.CodeModule.AddFromString strVb
' xl.Run "ThisWorkbook.TestScript"
Set myModule = Nothing
Set myWrkBk = Nothing
Set xl = Nothing
End Sub
If I understood you correctly, that you copied a code from Access to Excel and run the same code in Excel, in both cases the code manipulates the spreadsheet, and the one in Excel is fast, and the other in Access is slow, you can try the following:如果我理解正确,您将代码从 Access 复制到 Excel 并在 Excel 中运行相同的代码,在这两种情况下,代码操作电子表格,Excel 中的一个速度快,Access 中的另一个慢,您可以尝试以下操作:
ActiveWorkbook.Windows(1).Visible = False
), check also hereActiveWorkbook.Windows(1).Visible = False
),也在这里检查I hope this helps.我希望这有帮助。
Normally, automation is much slower than a macro (vba code).通常,自动化比宏(vba 代码)慢得多。 The same applies to other applications, eg.
这同样适用于其他应用程序,例如。 MS Word.
微软字。
If the code you wish to run in Excel always is the same, then open an Excel template with a macro workbook attached holding your code.如果您希望在 Excel 中运行的代码始终相同,请打开一个 Excel 模板,其中包含一个宏工作簿,其中包含您的代码。 Then, from Access, you can run a series of macros or, of course, only one macro if only one is passed to the parameter array:
然后,从 Access 中,您可以运行一系列宏,当然,如果只将一个宏传递给参数数组,则只运行一个宏:
Function RunExcelMacros( _
ByVal strFileName As String, _
ParamArray avarMacros()) As Boolean
Debug.Print "xl ini", Time
On Error GoTo Err_RunExcelMacros
Static xlApp As Excel.Application
Dim xlWkb As Excel.Workbook
Dim varMacro As Variant
Dim booSuccess As Boolean
Dim booTerminate As Boolean
If Len(strFileName) = 0 Then
' Excel shall be closed.
booTerminate = True
End If
If xlApp Is Nothing Then
If booTerminate = False Then
Set xlApp = New Excel.Application
End If
ElseIf booTerminate = True Then
xlApp.Quit
Set xlApp = Nothing
End If
If booTerminate = False Then
Set xlWkb = xlApp.Workbooks.Open(FileName:=strFileName, UpdateLinks:=0, ReadOnly:=True)
' Make Excel visible (for troubleshooting only) or not.
xlApp.Visible = False 'True
For Each varMacro In avarMacros()
If Not Len(varMacro) = 0 Then
Debug.Print "xl run", Time, varMacro
booSuccess = xlApp.Run(varMacro)
End If
Next varMacro
Else
booSuccess = True
End If
RunExcelMacros = booSuccess
Exit_RunExcelMacros:
On Error Resume Next
If booTerminate = False Then
xlWkb.Close SaveChanges:=False
Set xlWkb = Nothing
End If
Debug.Print "xl end", Time
Exit Function
Err_RunExcelMacros:
Select Case Err
Case 0 'insert Errors you wish to ignore here
Resume Next
Case Else 'All other errors will trap
Beep
MsgBox "Error: " & Err & ". " & Err.Description, vbCritical +
vbOKOnly, "Error, macro " & varMacro
Resume Exit_RunExcelMacros
End Select
End Function
Also, please note that you - as shown above - have to be extremely strict opening, using, and closing the Excel objects and in the correct order.另外,请注意您 - 如上所示 - 必须非常严格地以正确的顺序打开、使用和关闭 Excel 对象。 No ActiveWorkbook or the like.
没有 ActiveWorkbook 等。
Base on Matt Hall's answer but altered to show how you can, from Access:基于 Matt Hall 的回答,但进行了更改以展示如何从 Access 中:
ThisWorkbook
;ThisWorkbook
之外的 Excel 模块; In a custom module, named basTextModule
, in Excel:在 Excel 中名为
basTextModule
的自定义模块中:
Public Sub ShowCoolMessage()
MsgBox "cool"
End Sub
' Add02 is explictly ByRef (the default in VBA) to show that
' the parameter will be altered and have its value changed even for
' prodedures higher up the call stack.
Public Function GetCoolAmount(Add01 As Variant, _
Optional ByRef Add02 As Integer) As Integer
Add02 = Add02 + 1
GetCoolAmount = 10 + Add01 + Add02
End Function
In Access:在访问中:
For parameters passed by reference to work:对于通过引用传递的参数工作:
Note from Microsoft Docs, Application.Run method (Excel) that when you pass parameters to the Excel Sub or Function "You cannot use named arguments with this method. Arguments must be passed by position".请注意Microsoft Docs 中的 Application.Run 方法 (Excel) ,当您将参数传递给 Excel Sub 或函数时,“您不能在此方法中使用命名参数。参数必须按位置传递”。
When declaring excelApp use Object
rather than Excel.Application
in order to ensure that the value of any parameters passed by reference to excelApp.Run can be retrieved.声明excelApp 时使用
Object
而不是Excel.Application
以确保可以检索通过引用传递给 excelApp.Run 的任何参数的值。 Source: Jaafar Tribak "Application.Run .. (Argument Passed ByRef)" at https://www.mrexcel.com/board/threads/application-run-argument-passed-byref.998132/post-4790961资料来源:Jaafar Tribak“Application.Run ..(Argument Passed ByRef)”在https://www.mrexcel.com/board/threads/application-run-argument-passed-byref.998132/post-4790961
In the called sub or Function the parameters (apart from the first ModuleAndSubOrFunctionName
) must have a data type that match the datatype of the parmaters for the calling module or function.在被调用的 sub 或 Function 中,参数(除了第一个
ModuleAndSubOrFunctionName
)必须具有与调用模块或函数的参数的数据类型匹配的数据类型。 They can be variants or a specific datatype.它们可以是变体或特定的数据类型。 Eg, and for illustrative purposes,
Arg02
is an Integer and so must the second argument of GetCoolAmount
when RunExcelCode(WorkbookPathAndFileName, "basTestModule.GetCoolAmount" ...)
is used.例如,出于说明目的,
Arg02
是一个整数,因此在使用RunExcelCode(WorkbookPathAndFileName, "basTestModule.GetCoolAmount" ...)
时必须是GetCoolAmount
的第二个参数。
However to make your RunExcelCode
more generic it may be wise to ensure Arg01
, Arg02
, ... Arg30
paramters are all variants;但是,为了使您的
RunExcelCode
更通用,最好确保Arg01
、 Arg02
、 ... Arg30
参数都是变体; and therefore the parameters of your ultimately called sub or function are also variants, for example ...因此,您最终调用的 sub 或 function 的参数也是变体,例如 ...
Public Function GetCoolAmount(Add01 As Variant, _ Optional ByRef Add02 As Variant) As Integer ...
Public Function RunExcelCode(WorkbookPathAndFileName As String, _
ModuleAndSubOrFunctionName As String, _
Optional ByRef Arg01 As Variant, _
Optional ByRef Arg02 As Integer) As Variant
' Must be Object, not Excel.Application, to allow for parameters pass by reference
Dim excelApp As Object
Dim workbook As Excel.workbook
Dim Result As Variant
On Error GoTo HandleErr
' Can be Excel.Application if excelApp previously declared as Object
Set excelApp = New Excel.Application
' excelApp.Visible = True ' For debugging
Set workbook = excelApp.Workbooks.Open(WorkbookPathAndFileName)
' Get a value from a function or,
' if it is a sub a zero length string "" will be returned
Result = excelApp.Run(ModuleAndSubOrFunctionName, Arg01, Arg02)
RunExcelCode = Result
ExitHere:
workbook.Close
excelApp.Quit
Set workbook = Nothing
Set excelApp = Nothing
Exit Function
HandleErr:
Select Case Err.number
Case Else
MsgBox "Error " & Err.number & ": " & Err.Description, _
vbCritical, "RunExcelCode"
End Select
Resume ExitHere
End Function
Testing (from Access), calling a Sub and a Function:测试(来自 Access),调用一个 Sub 和一个函数:
Private Sub TestRunExcelCode()
Dim WorkbookPathAndFileName As String
Dim Result As Variant
WorkbookPathAndFileName = "C:\Users\YourName\Documents\MyWorkbook.xlsm"
' Run a sub
Result = RunExcelCode(WorkbookPathAndFileName, "basTestModule.ShowCoolMessage")
If IsNull(Result) Then
Debug.Print "{Null}"
ElseIf Result = "" Then
Debug.Print "{Zero length string}"
Else
Debug.Print Result
End If
' Will output "{Zero length string}"
' Get a value from a function
Dim Arg02 As Integer
Arg02 = 1
Debug.Print "Arg02 Before: " & Arg02
Result = RunExcelCode(WorkbookPathAndFileName, _
"basTestModule.GetCoolAmount", 1, Arg02)
Debug.Print "Arg02 After : " & Arg02 ' Value will have changed, as desired.
Debug.Print "Result : " & Result
End Sub
Edit 01: Major change to make code more generic.编辑 01:主要更改以使代码更通用。
Edit 02: Major change to handle paramaters passed by reference.编辑 02:处理通过引用传递的参数的重大更改。
Edit 03: Added details in the case "to make your RunExcelCode more generic".编辑 03:在“使您的 RunExcelCode 更通用”的情况下添加了详细信息。
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