#include <GUIConstantsEx.au3>
#include <FileConstants.au3>
#include <MsgBoxConstants.au3>
#include <Array.au3>
#include <String.au3>

Local $request = FileOpen("base.csv",$FO_READ),$ii=1,$aArray3[1]=["in"],$iii=1

; Generate the array to populate dropdown
Do

   Local $request2 = FileReadLine($request,$ii)

		 Local $aArray2 = _StringExplode($request2, ',')

		 If $aArray2[1] = "Convert" Then

			If _ArraySearch($aArray3,$aArray2[2]) = -1 Then
			   _ArrayAdd($aArray3,$aArray2[2])
			EndIf

		 EndIf

         $ii = $ii+1; next row in data file

Until $ii = 12
_ArrayDelete($aArray3,0)
; get the elements into a list
$sList = ""
For $i = 0 To UBound($aArray3) - 1
    $sList &= "|" & $aArray3[$i]
Next

; Create a GUI
Opt("GUIOnEventMode", 1)
$hGUI = GUICreate("Checker", 500, 500)
; Create the combo
$hCombo = GUICtrlCreateCombo("", 20, 20, 200, 20)
; And fill it
GUICtrlSetData($hCombo, $sList)
$okbutton = GUICtrlCreateButton("Start", 230, 19, 60)
GUICtrlSetOnEvent($okbutton, "goforit")
$cancelbutton = GUICtrlCreateButton("Close", 430, 19, 60) ; ID 5
GUICtrlSetOnEvent($cancelbutton, "killit")
GUISetState()

Func goforit()
While 1

   $ba = GUICtrlRead($hCombo)

   Do

		 Local $request2 = FileReadLine($request,$iii)
		 Local $aArray2 = _StringExplode($request2, ',')
		 _ArrayDisplay($aArray2)

		 ;Get spend
		 If $aArray2[1] = "Convert" And $aArray2[2] = $ba Then
			MsgBox(0,"The Result", "Result " & $aArray2[3])
		 EndIf

         $iii = $iii+1

   Until $iii = 12

$iii=1
WEnd

EndFunc

FileClose($request)

While 1
    Switch GUIGetMsg()
        Case $GUI_EVENT_CLOSE
            Exit
    EndSwitch
 WEnd

Func killit()
    Exit
EndFunc