Help with GUICtrlRead

[ElegantCow89]

Greetings,

I am a newbie at autoit, while I have some coding experience its generally been limited to solving scientific problems. I am making a script that among other things will feed temporal and spatial data into Stellarium (a freeware planetarium software) and extract stellar information. I have made a drop down box that selects the spatial location, however even if I select a specific location, the variable $location doesn't update. I also want the box to disappear when I select the location. Could someone point out what i am doing wrong, or point me to a easy to follow tutorial? Any help would be appreciated.

#include <GUIConstantsEx.au3>
$stellariumdir = 'C:\Program Files (x86)\Stellarium\'
GUICreate("Please select the beach",400,100) ; will create a dialog box
$_Combo =GUICtrlCreateCombo("", 10, 10) ; create first item
GUICtrlSetData(-1, "Bivalve|Terminal|Mushroom|YCS|YCN|Whites|Cemetary") ; add other items
$_Button = GUICtrlCreateButton ( 'Select',300, 10 ) ;add button
GUISetState()
$location = GUICtrlRead ( $_Combo ) ;read the value

While 1
    $msg = GUIGetMsg()
    Switch $msg
        Case $GUI_EVENT_CLOSE
            ExitLoop
        Case $_Button
            ExitLoop
    EndSwitch
  
WEnd

[PhoenixXL]

Before The Starting of the Loop Check that Your Combo has Blank Value Therefore the $location was Blank

You Should Place the Code Somewhat Like This

#include <GUIConstantsEx.au3>
$stellariumdir = 'C:Program Files (x86)Stellarium'
GUICreate("Please select the beach",400,100) ; will create a dialog box
$_Combo =GUICtrlCreateCombo("Bivalve", 10, 10) ; create first item
GUICtrlSetData(-1, "Bivalve|Terminal|Mushroom|YCS|YCN|Whites|Cemetary") ; add other items
$_Button = GUICtrlCreateButton ( 'Select',300, 10 ) ;add button
GUISetState()
;read the value
While 1
    $msg = GUIGetMsg()
    Switch $msg
        Case $GUI_EVENT_CLOSE
            ExitLoop
        Case $_Button
            $location = GUICtrlRead ( $_Combo )
            ConsoleWrite('Location:'&$location&@CRLF)
            ExitLoop
    EndSwitch
WEnd

Edited May 22, 2012 by PhoenixXL

[ElegantCow89]

Thank you, that worked