Populate list box with multi-dimensional array

[Graham Whitehead]

Hi, I was just wondering if it possible to populate a list box with an array
that was say 8 x 8. Basically, I organised a whole bunch of data and would
like to present it to a user inside a listbox on a form.

 

[NickHK]

Graham,
Does this work for you:

Private Sub CommandButton1_Click()
Dim arr(1 To 8, 1 To 8) As String
Dim i As Long
Dim j As Long

'Fill array, but can come from a Range or wherever
For i = 1 To 8
For j = 1 To 8
arr(i, j) = "Item " & i & ", " & j
Next
Next

With ListBox1
.Clear
.ColumnCount = UBound(arr, 2)
.List = arr()
End With

End Sub

NickHK

End Sub

 

[Graham Whitehead]

Thanks for the help Nick. I see how this works except for the line:

.ColumnCount = UBound(arr, 2)

Where does the 2 come from and what does it do?

 

[Graham Whitehead]

I managed to get your example working, and it is nearly what I am looking
for. However, only want one item from the array in each column. For
example, say the array contained an 8 x 8 boolean evaluation of values - I
would want only the result for the value in that column, i.e. [1,1] would
just say False - becasue the arr(1,1) value is false. Hope this makes
sense.

BTW Am I right in thinking that the 2 refers to the number of items
contained withing the array? (still a bit fuzzy on this one).

Thanks

 

[NickHK]

Graham,
Read the help about L/UBound.
As you can have multi-dimensional arrays, you need to specify which
dimension you want info on.
In this case it is the 2nd dimension, so the number of columns in the
ListBox match the number of horizontal elements in the array.
Otherwise it defaults to 1.
Actually, it would be better as :
..ColumnCount = UBound(arr, 2)-LBound(arr, 2)+1
to handle 0, 1 or whatever based array.

NickHK

 

[NickHK]

Graham,
Unless I'm missing something, that's what you have there;
8 columns x 8 rows with the array value displayed in the corresponding
position in the ListBox.

NickHK

I managed to get your example working, and it is nearly what I am looking
for. However, only want one item from the array in each column. For
example, say the array contained an 8 x 8 boolean evaluation of values - I
would want only the result for the value in that column, i.e. [1,1] would
just say False - becasue the arr(1,1) value is false. Hope this makes
sense.

BTW Am I right in thinking that the 2 refers to the number of items
contained withing the array? (still a bit fuzzy on this one).

Thanks

Thanks for the help Nick. I see how this works except for the line:

.ColumnCount = UBound(arr, 2)

Where does the 2 come from and what does it do?