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Another Way To Unique An Array.

Removes duplicate items from an array.

array = Input array
returnArray = array to return values to

Function UniqueArray( array As Variant , returnArray As Variant ) As Integer

Dim xlist List As Variant
Dim i As Integer

'*** Make sure arrays are passed to avoid some errors
If Not Isarray( returnArray ) Or Not Isarray( array ) Then
UniqueArray = False
Exit Function
End If

i = 0

'*** Use list to remove duplicates as list tags have to be unique
Forall e In array
xlist(e) = e
End Forall

'*** Build a new array containing unique items
Forall t In xlist
Redim Preserve returnArray(i)
returnArray(i) = t
i = i + 1
End Forall

UniqueArray = True
End Function

This was last published in November 2000

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