asked on

GetObject or CreateObject... vb6

From vb form, I am selecting a workbook which it may or may not already open.

Public Sub OpenExcelFile(strPath As String)

Dim xlWb As Excel.Workbook

If <file is already open?> Then ' What logic can I use here, or I have use error number to handle it?
Dim xlObj As Excel.Application
Set xlObj = GetObject(,"Excel.Application")
Else
Dim xlObj As New Excel.Application
Set xlObj = CreateObject(,"Excel.Application")
End if

Set xlWb = xlObj.OpenWorkBook(strPath)

Set xlObj = Nothing
Set xlWb = Nothing

Please QC above code also.

Thanks,

ASKER CERTIFIED SOLUTION

Ryan Chong

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Mike Eghtebas

ASKER

If there is no excel open, it won't go beyond:

Set xlObj = GetObject(,"Excel.Application")

I think. brb

Mike Eghtebas

ASKER

Now, I can see your logic regarding Set xlObj = GetObject(,"Excel.Application").

Btw, what happens if we had two workbooks with the same name but in different folder? How following code would know what 'FullName' to consider:

if xtmpWb.FullName = strPath then

Mike

Ryan Chong

i think the xtmpWb.FullName returns the full path of the workbook, isn't it?

Mike Eghtebas

ASKER

I used:

if frmMain.cboFolder & "\" & xtmpWb.Name = strPath then

Because there maybe to identical xl file present in two different folders; therefore, xtmpWb.FullName cann't tell what xtmpWb we intend to open.

You were great as always.

Regards,

Mike

Dave

If GetObject returns an Excel instance then rather than loop through all open workbooks you could attempt to set xWb to yourbook name - if an error occurs then the file is closed

Dim xlObj As Excel.Application
Dim xWb As Excel.Workbook
Dim xtmpWb As Excel.Workbook
Dim isFound As Boolean

On Error Resume Next
Set xlObj = GetObject(, "Excel.Application")

If xlObj Is Nothing Then
Set xlObj = CreateObject("Excel.Application")
Else
On Error Resume Next
Set xtmpWb = xlObj.Workbooks("aa.xls")
If Err.Number <> 0 Then Set xlWb = xlObj.Workbooks.Open("C:\test\aa.xls")
On Error GoTo 0
End If

Cheers

Dave

Mike Eghtebas

ASKER

Dave,

Thank you for the code you provided. As you know, your post was after the question has been closed -- to late to split.

Although I am using the solution from ryancys, but I appreciate having your code.

Regards,

Mike