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Tip of the Day
Language: VB7
Expertise: beginner
Oct 13, 2003

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ArrayReplace - A Replace routine that works through all the items of the input array

' A Replace routine that works through all the items of the input array
'
' Example:
'   Dim arr As Integer() = {3, 7, 8, 2, 7, 0, 9, 7}
'   ArrayReplace(arr, 7, 100)

'   Dim o As Object
'   For Each o In arr
'       Debug.Write(o & " ")
'   Next
'   Debug.WriteLine("")


Sub ArrayReplace(ByVal arr As Array, ByVal search As Object, _
    ByVal repl As Object)
    ArrayReplace(arr, search, repl, arr.GetLowerBound(0), arr.GetUpperBound(0))
End Sub

' This overloaded version allows you to specify which portion of the array 
' should be considered
Sub ArrayReplace(ByVal arr As Array, ByVal search As Object, _
    ByVal repl As Object, ByVal first As Integer, ByVal last As Integer)
    Dim exitLoop As Boolean

    Do
        ' search the array for the specified  object
        Dim i As Integer = Array.IndexOf(arr, search, first, last - first + 1)
        ' if found, replace it and keep searching
        If i > -1 Then
            arr.SetValue(repl, i)
        Else
            ' otherwise exit the loop
            exitLoop = True
        End If
    Loop Until exitLoop
End Sub
Marco Bellinaso
 
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