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Read value from listview


am632
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Hi,

I have managed to put together a script which lists fixed and removable drives using bits of code from other examples around the forum and I have it working as I want, but I cant work out how to read a value from the listview, please can anyone help? heres the code...

#include <GUIConstantsEx.au3>
#include <ListviewConstants.au3>
#include <array.au3>
#include <GUIListView.au3>

Opt("GUIOnEventMode", 1)
Opt("GUICloseOnESC", 1)

Local $Removable = "YES", $Drive_Set, $var

_ListDiskInfo()

$myinfos = _GetDriveInfos()

$Main = GuiCreate("List Disks", 800, 400)
GUISetOnEvent($GUI_EVENT_CLOSE, "_CloseApplication")

$Button = GUICtrlCreateButton("TEST",100,300,100,50)
GUICtrlSetOnEvent(-1,"_GetSelectedItem")

$listview = GUICtrlCreateListView("volume|label|file system|size (gb)|used (gb)|free (gb)|caption|id|dirty", 25, 25, 750, 200)
GUICtrlSetStyle($listview,Default,$LVS_EX_CHECKBOXES)

For $i = 0 to $Drive_Set[0]-1

;$percentocc = Round(($myinfos[$i][2]-$myinfos[$i][3])*100/$myinfos[$i][2], 1)

GUICtrlCreateListViewItem(StringUpper($myinfos[$i][0]) &"|"& $myinfos[$i][6] &"|"& $myinfos[$i][7] &"|"& $myinfos[$i][4] &"|"& $myinfos[$i][2]-$myinfos[$i][3] &"|"& $myinfos[$i][3] &"|"& $myinfos[$i][1] &"|"& $myinfos[$i][5]&"|"&$myinfos[$i][8], $listview)
Next

GUICtrlSendMsg($listview, $LVM_SETCOLUMNWIDTH, 0, 60)
GUICtrlSendMsg($listview, $LVM_SETCOLUMNWIDTH, 1, 100)
GUICtrlSendMsg($listview, $LVM_SETCOLUMNWIDTH, 2, 70)
GUICtrlSendMsg($listview, $LVM_SETCOLUMNWIDTH, 3, 65)
GUICtrlSendMsg($listview, $LVM_SETCOLUMNWIDTH, 4, 65)
GUICtrlSendMsg($listview, $LVM_SETCOLUMNWIDTH, 5, 65)
GUICtrlSendMsg($listview, $LVM_SETCOLUMNWIDTH, 6, 130)
GUICtrlSendMsg($listview, $LVM_SETCOLUMNWIDTH, 7, 130)
GUICtrlSendMsg($listview, $LVM_SETCOLUMNWIDTH, 8, 80)
GUISetState()



;Functions
#region ;List Disk Info
Func _ListDiskInfo()
    $Drive_Set = ""
    $DriveList = ""
    If $Removable = "YES" Then
        $Drive_Set = DriveGetDrive("ALL")
        For $i = 1 To $Drive_Set[0]
            $DriveType = DriveGetType($Drive_Set[$i])
            $DriveStatus = DriveStatus($Drive_Set[$i])
            If $DriveType = "Fixed" Or ($DriveType = "Removable" And $DriveStatus <> "NOTREADY") Or $DriveType = "RAMDisk" Then
                $DriveList = $DriveList & $Drive_Set[$i] & "|"
                $Drive_Set[$i] = StringUpper($Drive_Set[$i])
            EndIf
        Next
        $Drive_Set = StringSplit(StringTrimRight($DriveList, 1), "|", 1)
    Else
        $Drive_Set = DriveGetDrive("FIXED")
    EndIf
EndFunc
#EndRegion

#region ;Get Drive Infos
Func _GetDriveInfos()
Dim $specifs[$Drive_Set[0]][9]
For $i = 1 to $Drive_Set[0]
Dim $Services = ObjGet('winmgmts:\\.\root\cimv2')
Dim $DiskDrives = $Services.ExecQuery("Select Caption, DeviceID From Win32_DiskDrive")
For $DiskDrive In $DiskDrives
Dim $DiskPartitions = $Services.ExecQuery("Associators of {Win32_DiskDrive.DeviceID='" & _
$DiskDrive.DeviceID & "'} Where AssocClass = Win32_DiskDriveToDiskPartition")
For $DiskPartition In $DiskPartitions
Dim $LogicalDisks = $Services.ExecQuery ("Associators of {Win32_DiskPartition.DeviceID='" & _
$DiskPartition.DeviceID & "'} Where AssocClass = Win32_LogicalDiskToPartition")
For $LogicalDisk In $LogicalDisks
If $LogicalDisk.DeviceID = $Drive_Set[$i] Then
$specifs[$i-1][0] = $Drive_Set[$i]
$specifs[$i-1][1] = $DiskDrive.Caption
$specifs[$i-1][2] = Round(DriveSpaceTotal($Drive_Set[$i])/1024,2)
$specifs[$i-1][3] = Round(DriveSpaceFree($Drive_Set[$i])/1024,2)
$specifs[$i-1][4] = Round($LogicalDisk.Size/1000000000)
$specifs[$i-1][5] = $DiskPartition.DeviceID
$specifs[$i-1][6] = $LogicalDisk.VolumeName
$specifs[$i-1][7] = $LogicalDisk.FileSystem
$specifs[$i-1][8] = $LogicalDisk.VolumeDirty

EndIf
Next
Next
Next
Next
Return $specifs
EndFunc
#endregion

#region ;Exit Function

Func _CloseApplication()
    If @GUI_CtrlId = $GUI_EVENT_CLOSE Then _Exit_Command()
EndFunc   ;==>_CloseApplication

Func _Exit_Command()
    Sleep(500)
    Exit
EndFunc
#endregion

#region ;Get Selected Item
Func _GetSelectedItem()
    $var = TRUE
EndFunc

Func _GetSelectedItem1()
    Local $SelectedItem = _GUICtrlListView_GetItemTextArray
    MsgBox(0,"",$SelectedItem)
    $var = False
EndFunc
#EndRegion


While GUIGetMsg()<>$GUI_EVENT_CLOSE
    If $var = TRUE Then
        _GetSelectedItem1()
    EndIf

WEnd

The _GetSelectedItem1 function is the 1 I need help with, you can see its not finished, I think I need to use the _GUICtrlListView_GetItemTextArray function but im not exactly sure, does this seem correct?

So the ides is if I click a drive in the list view and click the 'TEST' button it will show the value of the volume lable for example, or another value like drive letter etc, am I on the right track here or is there another way to do it?

Thanks

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Replace your func _GetSelectedItem1 with this:

Func _GetSelectedItem1()
    Local $SelectedItemIndex = -1
    Local $GetCount = _GUICtrlListView_GetItemCount($listview)
    For $a = 0 To $GetCount - 1
        If _GUICtrlListView_GetItemChecked($listview, $a) == True Then
            $SelectedItemIndex = $a
        EndIf
    Next
    If $SelectedItemIndex > -1 Then
        $LineInfo = _GUICtrlListView_GetItemTextArray($listview, $SelectedItemIndex)
        _ArrayDisplay($LineInfo)
    EndIf
    $var = False
EndFunc   ;==>_GetSelectedItem1

 For _GUICtrlListView_GetItemTextArray to work it needs to know which index you are interested in.  In order to get that you have to use _GUICtrlListView_GetItemChecked on each index of $listview to see if that line is checked.  In order to do that you need a total count of items in $listview, so _GUICtrlListView_GetItemCount is needed, then look at each index to find the one that is checked.  I set $SelectedItemIndex to -1 as default in case no boxes were clicked.  What will happen if more than 1 box is clicked is anyone's guess as I only have 1 internal drive at the moment to test with.

Ian

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Hi, Thanks a lot for the help this is excellent and thanks for explaining each function, I have just 1 question, If I wanted to get just 1 value - lets say the drive letter from the $LineInfo instead of displaying all info would I use the _ArrayExtract function to a variable which I could then display in a msgbox or something? im unfamiliar with these functions but I looked in the help file and couldn't see anything else which looked like it would do it.

Thanks

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Cant test script under my XP but if your getting array to display some part of it you can use

Msgbox(0,'title',$LineInfo[5]); so $LineInfo[5] is 6-th line from array display (6-th coz array count from 0 and not from 1)

Edited by bogQ

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Actually just to extend on this while the topic is fresh, is there a way to change the default checkboxes in the listview to radio buttons instead so only 1 is selected at a time? what I found is if more than 1 checkbox is selected the script still works but it uses the last checked item as the value to read, or would it be possible to automatically deselect a box if another is checked?

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  • Moderators

am632,

How does that differ from the default single item selection when you create the ListView without any checkboxes? :huh:

M23

Edited by Melba23
Typo

Public_Domain.png.2d871819fcb9957cf44f4514551a2935.png 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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Hi,

I didnt realise how these functions work properly yet regards the listview as im still learning about them, I thought you needed to have a checkbox to be able to select an item, but based on what you just said I just checked the help file and realised If I change the _GUICtrlListView_GetItemChecked to _GUICtrlListView_GetItemSelected and remove the $LVS_EX_CHECKBOXES from the control style then I get the result I want, so thanks for helping me realise this :)

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  • Moderators

am632,

Glad I could help. :)

M23

Public_Domain.png.2d871819fcb9957cf44f4514551a2935.png 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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  • 6 months later...

Is there a tutorial somewhere that show the similarities & differences between 

lists

listviews

combo boxes ?

it takes me ages to figure out what i want to use and exactly what the benefits are ...

 

Skysnake

Why is the snake in the sky?

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Skysnake,

My take on the 3 control types:

- ListBoxes are used to display simple lists with only a single item per line.

- ListViews are much more complex beasts which can display several separate sub-items on the same line and which offer significantly more user interaction

- Combos are entirely different beasts and are not designed to display data but to allow the user to choose an item from a simple list without having to waste GUI real estate showing the list permanently.

I hope that helps.

M23

Public_Domain.png.2d871819fcb9957cf44f4514551a2935.png 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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