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Noob Question: Best way of populating a 2 dimensional array?

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Hello, I wonder if there is a better way than this!:

```#include <Array.au3>

Local \$aArray[1][3]

\$aArray[0][0] = 1
\$aArray[0][1] = 2
\$aArray[0][2] = 3

;\$aArray[0] = [1, 2, 3]

_ArrayDisplay(\$aArray)```

IIRC line no. 9 should work, but its not

Thanks in Advance, TD

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in your listing you are mixing 2D and 1D arrays...?
in line 2 you are using a 2d array (with just 1 row) and you can populate it like this:

`Local \$aArray[1][3] = [[1,2,3]]`

if it were with 2 rows you should populate like this:

`Local \$aArray[2][3] = [[1,2,3],[4,5,6]]`

while in line 9 you are declaring an 1d array, the syntax is ok, but since you are declaring a variable, you have to add the "Local" or "Global" statement. Also you should use the right number for the wanted elements [3]

`Local \$aArray[3] = [1, 2, 3]`

Chimp

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_StringSplit if you want to start from scratch. But it also depends on the data and type.

Forget the above, I had a dumb moment, where I got 3D, 2D and 1D mixed up in my head ... 2D being thought of as normal. I think some of my brain cells are still celebrating Xmas.

Edited by Santa

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@Chimp Thanks!

On line no. 9 I was trying to populate \$aArray's Row 0 with 1, 2 & 3, Not (re)declare \$aArray!

@TheSaint will try

Edited by TheDcoder

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Regarding line 9:
You can't access a "row" of a 2D array this way. You have to access each element and fill it with data.

How many elements are we talking about?

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Another idea:
_FileReadToArray supports CSV files so you could store your values in a file and populate the 2D array with a single line of code.

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`Global \$aArray[10][3] = [[10,20,30], [11,21,31], [12,22,32], [...], [...], [...], [...], [...], [...], [19,29,39]]`

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Why do you want to do it after declaration? What is the advantage?

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Why should something be implemented that has no advantage (in our company we call it "use case")?

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OutlookEX (2021-11-16 - Version 1.7.0.0) - Download - General Help & Support - Example Scripts - Wiki
OutlookEX_GUI (2021-04-13 - Version 1.4.0.0) - Download
Outlook Tools (2019-07-22 - Version 0.6.0.0) - Download - General Help & Support - Wiki
PowerPoint (2021-08-31 - Version 1.5.0.0) - Download - General Help & Support - Example Scripts - Wiki
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I amended my earlier post ... it is the Silly Season.

Make sure brain is in gear before opening mouth!
Remember, what is not said, can be just as important as what is said.

Spoiler

What is the Secret Key? Life is like a Donut

If I put effort into communication, I expect you to read properly & fully, or just not comment.
Ignoring those who try to divert conversation with irrelevancies.
If I'm intent on insulting you or being rude, I will be obvious, not ambiguous about it.
I'm only big and bad, to those who have an over-active imagination.

I may have the Artistic Liesense to disagree with you. TheSaint's Toolbox (be advised many downloads are not working due to ISP screwup with my storage)

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TheDcoder,

You could always use a self-coded wrapper function:

```#include <Array.au3>

Local \$aArray[1][3]

Local \$sInsert = "1|2|3"

_ArrayReplaceRow(\$aArray, \$sInsert, 0)

_ArrayDisplay(\$aArray, "", Default, 8)

Func _ArrayReplaceRow(ByRef \$aTarget, \$aSource, \$iRow)

_ArrayInsert(\$aArray, \$iRow, \$sInsert)
_ArrayDelete(\$aArray, \$iRow + 1)

EndFunc```

M23

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ArrayMultiColSort ---- Sort arrays on multiple columns
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GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

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@Melba23 How did you pull this off?

```#include <Array.au3>

Local \$aArray[1][3]

Local \$sInsert = "1|2|3"

_ArrayReplaceRow(\$aArray, \$sInsert, 0)

_ArrayDisplay(\$aArray, "", Default, 8)

Func _ArrayReplaceRow(ByRef \$aTarget, \$aSource, \$iRow)
; How did you manage to get \$sInsert's value inside the function? Ins't it Local(ly) declared?
_ArrayInsert(\$aArray, \$iRow, \$sInsert)
_ArrayDelete(\$aArray, \$iRow + 1)

EndFunc```

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TheDcoder,

How did you pull this off?

By a fluke - Local variables cannot exist outside of a function and are treated as Global even if not declared as such. What I should, of course, have posted was:

```#include <Array.au3>

Local \$aArray[1][3]

Local \$sInsert = "1|2|3"

_Insert(\$aArray, \$sInsert, 0)

_ArrayDisplay(\$aArray, "", Default, 8)

Func _Insert(ByRef \$aTarget, \$sSource, \$iRow)

_ArrayInsert(\$aTarget, \$iRow, \$sSource)
_ArrayDelete(\$aTarget, \$iRow + 1)

EndFunc```

M23

Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind

Open spoiler to see my UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

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An other -obvious- way to skin this cat...

```#include <Array.au3>

Local \$aArray[1][3]

Local \$sInsert = "1,2,3"

_Insert(\$aArray, \$sInsert, 0)

_ArrayDisplay(\$aArray, "", Default, 8)

Func _Insert(\$aTarget, \$sSource, \$iRow)
Local \$a = StringSplit(\$sSource, ",")
For \$i = 1 to \$a[0]
\$aTarget[\$iRow][\$i-1] = \$a[\$i]
Next
EndFunc```

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<..snap..>

removed as off topic....

Edited by Chimp

Chimp

small minds discuss people average minds discuss events great minds discuss ideas.... and use AutoIt....

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