How to print two dimensional array in Immediate window in VBA?

Question

How to print two dimensional array in Immediate window in VBA ? Does it exist any generic method for doing this ? Some method for ploting one row of array per line in Immediate window could solve this problem, because then only thing to do is to loop this code for each line of array.

Answer 1

I made a simple loop to do this for anybody's reference:

Sub WriteArrayToImmediateWindow(arrSubA As Variant)

Dim rowString As String
Dim iSubA As Long
Dim jSubA As Long

rowString = ""

Debug.Print
Debug.Print
Debug.Print "The array is: "
For iSubA = 1 To UBound(arrSubA, 1)
    rowString = arrSubA(iSubA, 1)
    For jSubA = 2 To UBound(arrSubA, 2)
        rowString = rowString & "," & arrSubA(iSubA, jSubA)
    Next jSubA
    Debug.Print rowString
Next iSubA

End Sub

Answer 2

If this is for debugging purposes, it's not convenient to write a macro to view the contents of the array during program execution. Might even cause problems.

For debugging during program execution, you'll want a code-free method you can use across all VB projects, to spy the contents of your array.

1. In VBA IDE, click View menu > Locals Window
2. In Local pane, find the array-name.
   

3. Expand the nodes to find your values. The nodes will differ, depending on the type of array.

In this example, "aLookList" is a variant array. The values under "Value2" come from a range.

Another answer here suggests using the Watch pane. This is similar to my answer, but poster did not explain that you can spy the entire array (all cells) by simply adding the array name to Watch. Then , drill down nodes. The advantage of the Locals Window over the Watch Window, is that with Locals pane, you do not have to manually add the array to the pane, it's already there. So it's a bit less effort.

Answer 3

No, you will either need to;

• Create & call a function that loops & prints it out to the debug window.
• If this is for debugging, right click the variable in the IDE & "Add Watch" which will bring up a window that will track changes to the value of the array & display its content when a breakpoint is hit.

Answer 4

paste below data in column A(Name ) in column B (Age)

Name    Age
A   10
B   20
C   30
D   40
E   50
F   60
G   70

and run the below code

Sub Array_Demo()

Dim arr() As String
Dim i As Integer, j As Integer

' fill the array with strings

Last = Range("A" & Rows.Count).End(xlUp).Row
ReDim arr(Last, 1)

For i = 0 To Last - 1

    arr(i, 0) = Cells(i + 1, 1).Value
    arr(i, 1) = Cells(i + 1, 2).Value


Next

' only one loop to display its contents !!!
Dim v As Variant

For Each v In arr

    Debug.Print v

Next


End Sub

You can see the below output in Immediate window

Name
A
B
C
D
E
F
G

Age
10
20
30
40
50
60
70

Answer 5

Try This

You can also type code1: code2 instead of code1 _
This is only for displaying
If arr is defined as array( array(,),array(,)...)
and Then
You shoud For c = Lbound(arr(r),1) to ubound(arr(r),1)
Debug.Print arr(r)(c)
Because first is 2d Array and the last is 1nd Array.
I

'Define 2d array
arr = [ {"A",1; "B",2; "C",3 } ]: _
For r = LBound(arr, 1) To UBound(arr, 1): _
        For c = LBound(arr, 2) To UBound(arr, 2): _
            Debug.Print arr(r, c): _
       Next c: _
Next

Answer 6

I wrote my own function for this. print_r() for VBA. It can evaluate Arrays, Dictionaries, Collection, MatchCollection etc.. The whole also nested. In addition, the data types are given and special characters are displayed in strings as Unicode.

http://wiki.yaslaw.info/doku.php/vba/functions/print_r/index

print_r(array(1,2,3,array("A","B")))
<Variant()>  (
    [0] => <Integer> 1
    [1] => <Integer> 2
    [2] => <Integer> 3
    [3] => <Variant()>  (
        [0] => <String> 'A'
        [1] => <String> 'B'
    )
)

print_r([{1,2;3,4}])
<Variant()>  (
    [1.1] => <Double> 1
    [1.2] => <Double> 2
    [2.1] => <Double> 3
    [2.2] => <Double> 4
)