Show item from list

[david1337 4]

Hey guys

Quick question:

In this GUI the listview is created from items in test.txt

I would like my "Get Info" button to show the actual text of the item that is selected. So far I have been able to make it show the number of the item.

What is the last missing puzzle here?
 

expandcollapse popup

#include <GUIConstantsEx.au3>
#include <GUIListViewEx.au3>


Global $MainGUI_ManageItemList
Global $File = "test.txt"
Global $FileToArray = FileReadToArray("test.txt")



Call ("MainGUI_ManageItemList")



Func MainGUI_ManageItemList()

    Local $Button1

    $MainGUI_ManageItemList = GUICreate("Manage Item List", 800, 400, -1, -1)

    $cLV = GUICtrlCreateListView("[items]", 10, 10, 400, 775, $LVS_NOCOLUMNHEADER)
GUICtrlSetFont(-1, 12, 800, 0, "@Arial Unicode MS")
_GUICtrlListView_SetColumnWidth($cLV, 0, 378)

$Button1 = GUICtrlCreateButton("Button 1", 425, 10, 80, 30)
$RemoveItem = GUICtrlCreateButton("Remove Item", 425, 50, 80, 30)
$GetInfo = GUICtrlCreateButton("GetInfo", 425, 120, 80, 30)


GUISetState(@SW_SHOW, $MainGUI_ManageItemList)



; Intialise ListView
Global $iLV_Index = _GUIListViewEx_Init($cLV)
; Insert lines
_GUIListViewEx_Insert($FileToArray, True)
; Register required messages
_GUIListViewEx_MsgRegister(True, False, False, False)


    While 1
        Switch GUIGetMsg()
        Case $GUI_EVENT_CLOSE

                ExitLoop

            Case $Button1
            MsgBox(0,"","Button 1 is pressed")


         Case $RemoveItem
            _GUIListViewEx_Delete()

         Case $GetInfo
         $iIndex = _GUICtrlListView_GetSelectedIndices($cLV)
         msgbox (0, "Selected item", $iIndex)

        EndSwitch
    WEnd
EndFunc   ;==>Main

 

[l3ill 69]

Use:

_GUICtrlListView_GetSelectedIndices

in conjunction with:

_GUICtrlListView_GetItemText

 

See my Snippet Browser for an example 

[david1337 4]

Bill ! My new best friend

If I define the item number like this: _GUICtrlListView_GetItemText($cLV, 1)  Then it shows the text of item 1 correct.

And since _GUICtrlListView_GetSelectedIndices gets the item number of the selected item, I thought that I could do like this, but it doesn't work.
The 2nd msgbox is just blank.

 

Case $GetInfo
$iIndex = _GUICtrlListView_GetSelectedIndices($cLV)

$iIndexText = _GUICtrlListView_GetItemText($cLV, $iIndex)


msgbox (0, "Selected item NUMBER", $iIndex)
msgbox (0, "Selected item TEXT", $iIndexText)

 

Edited September 28, 2016 by david1337

[l3ill 69]

31 minutes ago, david1337 said:

Bill ! My new best friend

 

Try the Array Based Parameter:

Case $GetInfo
         $iIndex = _GUICtrlListView_GetSelectedIndices($cLV, True)
        $iIndexText = _GUICtrlListView_GetItemText($cLV, $iIndex[1])

 

[david1337 4]

Omg I can't believe this fix I just made up

Case $GetInfo
         $iIndex = _GUICtrlListView_GetSelectedIndices($cLV)
         $iIndexNumber = $iIndex -""
         $iIndexText = _GUICtrlListView_GetItemText($cLV, $iIndexNumber)


         msgbox (0, "Selected item NUMBER", $iIndex)
         msgbox (0, "Selected item TEXT", $iIndexText)

 

[l3ill 69]

Neat...  whatever works 

[david1337 4]

Oh, I didn't see your fix - that works great too, and somehow seems prettier

Btw do you know if it's possible to set a case as soon as an item in the list is highlighted? Or is a button always needed?

[l3ill 69]

Not off hand...

You could make a Function out of it and call it from one of the the functions in Melbas UDF, you would have to read up on how that's done though.

[l3ill 69]

39 minutes ago, david1337 said:

Oh, I didn't see your fix - that works great too, and somehow seems prettier

Well yours works for now but when you start adding code and intricacies it may cause problems down the road.

[l3ill 69]

For instance if you were using the Default Version of _GUICtrlListView_Create you could call your case with the following:

$LVS_EX_ONECLICKACTIVATE - The control sends an $LVN_ITEMACTIVATE messages when the user clicks an item

 

Melbas probably has something similar better ;-)

[david1337 4]

Haha I'm sure Melba has something just like that superior  *poke poke Melba*

Edited September 28, 2016 by david1337

[david1337 4]

Oh god scripting can be frustrating:

When NO item is selected and the "Get Info" button is clicked, the script crashes with: Array variable has incorrect number of subscripts or subscript dimension range exceeded

I guess that array bug is still haunting here huh?

[Melba23 2,464]

david1337,

Someone called?

This seems to work nicely:

Case $GetInfo
    $aIndex = _GUICtrlListView_GetSelectedIndices($cLV, True)
    If IsArray($aIndex) And $aIndex[0] <> 0 Then
        MsgBox(0, "Selected item", _GUICtrlListView_GetItemText( $cLV, $aIndex[1]))
    EndIf

And as you are checking that there is at least one item selected, you do not get a crash when one is not.

M23

[david1337 4]

Melba,

Exactly! Worked perfectly. Clever way to attack the issue Thank you!

 

-

 

Now, can I please request for a function like this in the forum?

[Melba23 2,464]

david1337,

Nice thought - but as has just been proved, I normally turn up fairly quickly in any event!

M23

Edited September 28, 2016 by Melba23
Typo

[david1337 4]

You sure do