I wrote the following procedure to check for Microsoft Excel application, if opened. The procedure works fine, except that once it opens the workbook and the activates the sheet, a second instance of Excel tries to open.
Here is my code:
Dim xlApp As New Excel.Application
Dim xlBook As Excel.Workbook
Dim xlWBName As String = "2011.1004.Compensation Template"
For Each p As System.Diagnostics.Process In System.Diagnostics.Process.GetProcesses()
If p.ProcessName <> "EXCEL" Then
xlApp.Visible = True
xlBook = xlApp.Workbooks.Open("F:\Test Environment\Compensation Workbook\Compensation Workbook\bin\Debug\" & xlWBName & ".xlsx")
Dim xlSheet As Excel.Worksheet
xlSheet = CType(xlBook.Sheets("SummaryWorksheet"), Worksheet)
xlSheet.Activate()
End If
Next
Use the GetObject method to find an already open Application object:
http://msdn.microsoft.com/en-us/library/e9waz863(v=vs.90).aspx
Dim xlApp As Excel.Application
Try
'get an existing excel.application object
xlApp = GetObject(, "Excel.Application")
Catch ex As Exception
'no existing excel.application object - create a new one
xlApp = New Excel.Application
End Try
Dim xlBook As Excel.Workbook
Dim xlWBName As String = "2011.1004.Compensation Template"
xlApp.Visible = True
xlBook = xlApp.Workbooks.Open("F:\Test Environment\Compensation Workbook\Compensation Workbook\bin\Debug\" & xlWBName & ".xlsx")
Dim xlSheet As Excel.Worksheet
xlSheet = CType(xlBook.Sheets("SummaryWorksheet"), Worksheet)
xlSheet.Activate()
Related
I need to get the last (rightmost worksheet) name in msgbox.
I used Sheets(Sheets.Count) to get last sheet. But its only giving first sheets name. Kindly help me on this.
Here is my code.
Sub ShowMRNumber()
Dim xlApp As Excel.Application
Dim xlBook As Excel.Workbook
Dim xlSheet As Excel.Worksheet
Set xlApp = New Excel.Application
Set xlBook = xlApp.Workbooks.Open("location")
Set xlSheet = xlApp.Sheets(Sheets.Count)
MsgBox "MR No. is" & vbNewLine xlSheet.Name
xlApp.Workbooks.Close
End Sub
Your line saying
Set xlSheet = xlApp.Sheets(Sheets.Count)
should actually be
Set xlSheet = xlBook.Sheets(xlBook.Sheets.Count)
Using xlApp.Sheets is probably not an issue, as that would probably have defaulted to the active workbook within the xlApp instance of Excel, but Sheets.Count (without a xlApp or xlBook qualifier) would not have been referring to a workbook open in a different instance of Excel - it would have been referring to the active workbook in the instance of Excel where the code was running.
I am trying to write in an already manually opened workbook using VBA from my PowerPoint presentation.
Using CreateObject and then Workbook.Open it opens a new instance of the file.
I'm trying to use GetObject as found in several examples over the web.
Here's my code :
Dim xlApp As Object
Dim xlWorkbook As Object
Set xlApp = CreateObject("Excel.Application")
xlApp.Visible = Trueme
Set xlWorkbook = xlApp.Workbooks.Open(ActivePresentation.Path & "\Suivi individuel.xlsx", True, False)
xlWorkbook.Sheets(1).Range("C14").Value = "Hello"
SlideShowWindows(1).View.GotoSlide nextSlide
I've tried:
Dim xlApp As Object
Dim xlWorkbook As Object
Set xlWorkbook = GetObject(ActivePresentation.Path & "\Suivi individuel.xlsx", "Excel.Application")
xlWorkbook.Sheets(1).Range("C14").Value = "Hello"
SlideShowWindows(1).View.GotoSlide nextSlide
It says runtime error 432: File Name or Class Name not found during automation operation.
Try:
Dim xlApp As Object
Dim xlWorkbook As Object
Set xlWorkbook = GetObject(ActivePresentation.Path & "\Suivi individuel.xlsx")
If you just want to get an open instance of Excel then
Set xlApp = GetObject(,"Excel.Application")
Set xlWorkbook = xlApp.ActiveWorkbook
Wrap that in an error handler if there's a chance Excel might not be open
See: https://support.microsoft.com/en-us/kb/288902
I have a form with 1 button to create an Excel file on my desktop.
I get error message:
NullReferenceException Was Unhandled
Object reference not set to an instance of an object
and it highlights the code:
WB = excelapp.workbooks.add
I did add the reference "Microsoft excel 14.0" and my full code is below:
imports excel = microsoft.office.interop.excel
dim excelapp as excel.application
dim WB as excel.workbook
sub button1()
WB = excelapp.workbooks.add
excelapp.visible=true
end sub
Missing New on your Excel instance for starters:
Dim xlApp As New Excel.Application
Dim xlWorkbook As Excel.Workbook = xlApp.Workbooks.Add()
Dim xlWorksheet As Excel.Worksheet = CType(xlWorkbook.Sheets("sheet1"), Excel.Worksheet)
xlWorksheet.Cells(1, 1) = "data in first cell"
xlWorksheet.SaveAs(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) & "\" & "Test.xlsx")
xlWorkbook.Close()
xlApp.Quit()
xlApp = Nothing
xlWorkBook = Nothing
xlWorkSheet = Nothing
You should probably put this in Try/Catch/Finally block to catch errors in case you run into issues, but mostly because if the program doesn't continue properly finish that code block, an EXCEL.EXE will remain open in your task manager, as well as whatever Excel file it was accessing will be "in use by another program" when you try to access/modify/delete it.
just add one line, then it'll work
imports excel = microsoft.office.interop.excel
dim excelapp as excel.application
dim WB as excel.workbook
sub button1()
excelapp = new excel.application
WB = excelapp.workbooks.add
excelapp.visible=true
end sub
Ok, I must be missing something subtle here.
In Excel 2010 this VBA works:
Private Sub ExcelTest()
Dim wb As Workbook
For Each wb In Workbooks
Debug.Print wb.Name
Next wb
End Sub
I'm trying to replicate this in Access VBA and I've tried the following approaches in Access 2010 with no success.
Private Sub AccessTest1()
'Derived from http://stackoverflow.com/questions/15958061/controlling-excel-
'workbook-from-access-2010-vba
Dim xlApp As Excel.Application
Dim xlWB As Excel.Workbook
Set xlApp = New Excel.Application
For Each xlWB In Excel.Workbooks
Debug.Print xlWB.Name
Next xlWB
'Nothing happens.
'Stepping through and hovering:
'xlApp = "MicroSoft Excel"
'xlWB = Nothing
'xlWB.Name = Object variable or With block variable not set.
'But doesn't throw an error.
End Sub
Private Sub AccessTest2()
'Derived from http://stackoverflow.com/questions/5729195/how-to-refer-to-excel-
'objects-in-access-vba
Dim xlApp As Excel.Application
Dim wb As Excel.Workbook
Set xlApp = New Excel.Application
For Each wb In Excel.Workbooks '<--- Like this nothing happens
Debug.Print wb.Name
Next wb
'Stepping through and hovering:
'xlApp = "MicroSoft Excel"
'wb = Nothing
'wb.Name = Object variable or With block variable not set. But doesn't throw an error.
For Each wb In xlApp.Workbooks '<--- This throws a "Object variable or
'With block variable not set" error
Debug.Print wb.Name
Next wb
End Sub
Private Sub AccessTest3()
'Derived from http://stackoverflow.com/questions/5729195/how-to-refer-to-excel-
'objects-in-access-vba
Dim objExcelApp As Object
Dim wb As Object
Set objExcelApp = CreateObject("Excel.Application")
Set wb = objExcelApp.Workbook '<--- Throws "Object doesn't support this property
'or method error"
'Hovering after error:
'objExcelApp = "MicroSoft Excel"
'wb = Nothing
For Each wb In objExcelApp.Workbooks
Debug.Print wb.Name
Next wb
End Sub
I definitely have the "Microsoft Excel 14.0 Object Library" reference checked in Access.
I'm just trying to list any open Excel Workbooks so that I can then act against that information.
Thanks for your help in advance.
Set xlApp = New Excel.Application creates a new instance of Excel - and of course you do not have any workbooks in there.
What you want to achive is to go thru an already opened Excel instance. Therefore you have to use getObject().
Another Error is in your For statement ... you have to use xlApp.Workbooks instead of Excel.Workbooks.
The following code should provide the exprected result:
Dim xlApp As Excel.Application
Set xlApp = GetObject(, "Excel.Application")
Dim xlWB As Excel.Workbook
For Each xlWB In xlApp.Workbooks
Debug.Print xlWB.Name
Next xlWB
Set xlApp = Nothing
Set xlWB = Nothing
Please keep also in mind to destry object variables on the end by setting them to Nothing.
I am tyring to run code like this
xlWorkSheet.Cells(rownumber, 1) = "Some Value"
the problem is when I open the excel document the cell value is not updated.
any help will be appreciated
I use the following code to open the file
Dim pathtofile As String = Server.MapPath("~/UserControls/Upload/MyUpload.xlsx")
Dim xlApp As Excel.Application =New Excel.Application
Dim xlWorkBook As Excel.Workbook
Dim xlworkbooks As Excel.Workbooks
Dim xlWorksheets As Excel.Worksheets
Dim misValue As Object = System.Reflection.Missing.Value
Dim xlWorkSheet As Excel.Worksheet = Nothing
xlWorkBook = xlApp.Workbooks.Add(misValue)
xlworkbooks = xlApp.Workbooks
xlWorkBook = xlworkbooks.Open(pathtofile )
xlWorkSheet = xlWorkBook.Sheets("Sheet1")
You need to save, close, and release the com objects to make sure excel doesn't remain running as a process.
Sub save(filename As String) ' Saves the sheet under a specfic name
xlWorkBook.SaveAs(filename)
End Sub
Sub closexl()
xlWorkBooks.Close()
xlApp.Quit()
End Sub
Sub cleanup() ' Releases all of the com objects to object not have excel running as a process after this method finishes
GC.Collect()
GC.WaitForPendingFinalizers()
System.Runtime.InteropServices.Marshal.ReleaseComObject(xlWorkSheet)
System.Runtime.InteropServices.Marshal.ReleaseComObject(xlWorkBook)
System.Runtime.InteropServices.Marshal.ReleaseComObject(xlApp)
xlApp = Nothing
End Sub