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krishpun

Arrays

7 posts in this topic

Please help to identify the column position in a 2D array.

Example:

I have a 2D array as below.

$ar1[0][0]="Name"

$ar1[0][1]="Age"

$ar1[0][2]="state"

$ar1[0][3]="country"

$ar1[1][0]="John"

$sr="state"

I want to know the column position where "state" exist (in the first row of this 2D array)?

ie... I am expecting answer of "2" (second column).

I am trying with _ArraySearch as below, but still no luck.

$dbm1 = _ArraySearch($ar1, $sr)

MsgBox(1,"s",$dbm1) --> This returns the row position ie... 0 but I need column position in this first row.

regards,

Krishna

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_ArraySearch will let you search by column, but you'd have to know which column to search in, otherwise you'd have to search each column one at a time. You could use _ArraySearch to find which row your item is in, then loop through the elements of that row to find the column number.


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krishpun,

Or search each column in turn like this: :)

#include <Array.au3>

Global $ar1[2][4]

$ar1[0][0] = "Name"
$ar1[0][1] = "Age"
$ar1[0][2] = "state"
$ar1[0][3] = "country"
$ar1[1][0] = "John"

$sr = "state"

; For each column
For $i = 1 To UBound($ar1, 1)
    ; Search for the value
    $dbm1 = _ArraySearch($ar1, $sr, 0, 0, 0, 0, 1, $i)
    ; If found
    If $dbm1 <> -1 Then
        ; Display column number
        MsgBox(1, "s", $i)
    EndIf
Next

M23


Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______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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Thanks, but it works only for "state". It does not work for other values say, "country"

Please let me know what change should I make?

#include <Array.au3>

Global $ar1[2][4]

$ar1[0][0] = "Name"

$ar1[0][1] = "Age"

$ar1[0][2] = "state"

$ar1[0][3] = "country"

$ar1[1][0] = "John"

$sr = "country"

; For each column

For $i = 1 To UBound($ar1, 1)

; Search for the value

$dbm1 = _ArraySearch($ar1, $sr, 0, 0, 0, 0, 1, $i)

; If found

If $dbm1 <> -1 Then

; Display column number

MsgBox(1, "s", $i)

EndIf

Next

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krishpun,

My apologies - I used the wrong value for the dimension parameter in UBound which, by chance, worked for the "state" case. :)

Please change the line to read:

For $i = 0 To UBound($ar1, 2) - 1

and all should be well. :)

M23


Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______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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#6 ·  Posted (edited)

I was taking a look before I see Melba23's reply but... here another "dirty" way :)

Global $ar1[2][4]

$ar1[0][0] = "Name"
$ar1[0][1] = "Age"
$ar1[0][2] = "state"
$ar1[0][3] = "country"
$ar1[1][0] = "John"
$sr = "country"
For $i = 0 To UBound($ar1,1)-1
    For $f = 0 To UBound($ar1,2)-1
        $dbm1=StringInStr($ar1[$i][$f],$sr)
        If $dbm1 <> 0 Then
        ; Display column number
        MsgBox(1, "s", $f)
        EndIf
    Next
Next
Edited by sahsanu

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Thanks a lot for the help.

It works fine now.

regards,

Krishna

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