I have a 2D array, say it is 20 x 30 and I want to change any zero values to
say 10. I would have expected the following smaller example to work but it
only changes the value for 'v' rather than the value of the array members.

Sub test()
Dim ar1(1, 1) As Variant, v As Variant
ar1(0, 0) = 1
ar1(0, 1) = 1
ar1(1, 0) = 1
ar1(1, 1) = 1
For Each v In ar1
v = 2
Next
End Sub

I can do it with the following but I was surprised to find for each did not
seem to work as I would have expected

Sub test()
Dim ar1(1, 1) As Variant, v As Variant, i, j
ar1(0, 0) = 1
ar1(0, 1) = 1
ar1(1, 0) = 1
ar1(1, 1) = 1
For i = 0 To UBound(ar1, 1)
For j = 0 To UBound(ar1, 2)
ar1(i, j) = 2
Next
Next
End Sub


Andrew

I should add that I know the examples do not change zero values to 10 but if
they changed them at all then I would have a method I can use.

An array is not a collection, so it doesn't work like a collection.


--
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HTH

Bob

(there's no email, no snail mail, but somewhere should be gmail in my addy)



"Andrew Hall NZ" wrote in message
...
I have a 2D array, say it is 20 x 30 and I want to change any zero values
to
say 10. I would have expected the following smaller example to work but it
only changes the value for 'v' rather than the value of the array members.

Sub test()
Dim ar1(1, 1) As Variant, v As Variant
ar1(0, 0) = 1
ar1(0, 1) = 1
ar1(1, 0) = 1
ar1(1, 1) = 1
For Each v In ar1
v = 2
Next
End Sub

I can do it with the following but I was surprised to find for each did
not
seem to work as I would have expected

Sub test()
Dim ar1(1, 1) As Variant, v As Variant, i, j
ar1(0, 0) = 1
ar1(0, 1) = 1
ar1(1, 0) = 1
ar1(1, 1) = 1
For i = 0 To UBound(ar1, 1)
For j = 0 To UBound(ar1, 2)
ar1(i, j) = 2
Next
Next
End Sub


Andrew