How do I change an Access 2007 multivalued field separator from the default comma to a semicolon?

I have a table in Access 2007 that has a multivalved field.  By default values listed in a multivalved field are separated by commas.  I would like to change the default from a comma to a semicolon.  How can this be done?  The reason for wanting to change to a semicolon is that the data values contain embedded commas.
robtrueAsked:
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peter57rCommented:
In A2010, the form control has a 'Separator character' property allowing you to change the separator to Newline or ;

I don't know if this was available in A2007.
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pdd1lanCommented:
you can use replace function to replace "," to ";"

Replace("yourstring", ",", ";")
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robtrueAuthor Commented:
No, this will also change the embedded commas in the data.  Look at this way.  Imagine a user entering data via a datasheet view. When the user clicks on the multivalued field, a lookup combo (or list) appears.  The user selects two are more items.  The selected items appear in the field as a comma (by default) delimited string.  I would to set the delimiter to a semicolon.
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peter57rCommented:
I don't think there is  any way of changing them, because they don't really exist.  
The presentation of a multi-valued field is an internal Access process - the real values are in a separate junction table.  There is nothing which actually contains the values separated with commas.


I understand your issue with this, but I don't think there is a solution.
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pdd1lanCommented:
Maybe I miss understand the question, but when you select item(s) in list box..
you can capture input value and modify as the way you want:

example:  list4: listbox

  Dim var As Variant
  Dim strDelimit As String
  Dim myStr As String
 
  strDelimit = ";"
 
  For Each var In List4.ItemsSelected
 
    If Not IsNull(var) Then
        myStr = myStr & List4.ItemData(var) & strDelimit
       
    End If
 
  Next
 
  debug.Print myStr
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