Autosizing Listview Columns

[nullschritt]

Hello, I am making a listview in my application, to act as a list, the code I am using to create the listview is such:

Global $convolist = GUICtrlCreatelistview("0|0|1|1|2|2|3|3|4|4|5|5|6|6|7|7|8|8|9|9",230,60,633,75,16396,524801)

Each column name is hidden, and each column will have first a set of data, and then an [x] in the next over like Document1|[x]|Document2|[x], I am sure it will not be hard for me to detect when and which X is clicked, but I am having another problem.

It seems that there is no property to resize the listview as text items are added, and I could not find a function to resize a specific cell in the listview, is there a way that I can resize the cells to the width of the text that they are going to contain?

Thanks for your time looking at my help request!

[BrewManNH]

#include <GuiListView.au3>
_GUICtrlListView_SetColumnWidth($hWnd, $iCol, $iWidth)

[nullschritt]

  On 6/30/2013 at 3:19 AM, BrewManNH said:

#include <GuiListView.au3>
_GUICtrlListView_SetColumnWidth($hWnd, $iCol, $iWidth)

Thanks but how can I get the width of the text I am going to be setting?

[AZJIO]

#include <ListViewConstants.au3>

Local $hGUI, $ListView

$hGUI = GUICreate("ListView", 540, 360, 100, 200)
GUISetBkColor(0xd5d2af)

$ListView = GUICtrlCreateListView("Col1|Col2|Col3|Col4", 10, 10, 520, 340)
; GUICtrlSetBkColor(-1, 0xFFFEEE)
For $t = 1 To Random(1, 10, 1)
    $str = ''
    For $i = 1 To 4
        For $j = 1 To Random(1, 10, 1)
            $str &= Chr(Random(65, 90, 1))
        Next
        $str &= '|'
    Next
    $str = StringTrimRight($str, 1)
    GUICtrlCreateListViewItem($str, $ListView)
Next

GUISetState()

Sleep(1500)
For $i = 0 To 3
    GUICtrlSendMsg($ListView, $LVM_SETCOLUMNWIDTH, 0, -1) ; $LVSCW_AUTOSIZE
    GUICtrlSendMsg($ListView, $LVM_SETCOLUMNWIDTH, 0, -2) ; $LVSCW_AUTOSIZE_USEHEADER
Next

Do
Until GUIGetMsg() = -3

[Gianni]

  On 6/30/2013 at 6:04 AM, AZJIO said:

....

For $i = 0 To 3
    GUICtrlSendMsg($ListView, $LVM_SETCOLUMNWIDTH, 0, -1) ; $LVSCW_AUTOSIZE
    GUICtrlSendMsg($ListView, $LVM_SETCOLUMNWIDTH, 0, -2) ; $LVSCW_AUTOSIZE_USEHEADER
Next

....

 

beautiful, ...power of messages....

excuse me   AZJIO

where can be found a "list" of messages accepted by various controls and allowed parameters?

thanks

[KaFu]

Those are documented on MSDN. To get the const values I always do a Google search for something like "Const LVM_SETCOLUMNWIDTH". But most messages are already in-cooperated into the existing UDFs anyhow, check _GUICtrlListView_SetColumnWidth().

[Gianni]

ok,

thanks Kafu

.... sometimes the "limit" of the internet is its vastness .....

Edited June 30, 2013 by Pincopanco

[MyEarth]

I can make a question on the same subject?

expandcollapse popup

#include <GUIConstantsEx.Au3>
#include <GuiListView.au3>
#include <GUIEdit.Au3>

$hGUI = GUICreate("Form", 539, 347, -1, -1)
$hListView = GUICtrlCreateListView("Column", 150, 25, 175, 250)
GUICtrlSendMsg(-1, $LVM_SETCOLUMNWIDTH, 0, -2)
GUISetState(@SW_SHOW)

Sleep(1000)

GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)


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

How to have scrollable listview with the vertical scrolling but "hide" the unaestethic orizzontal scrollbar?

[Gianni]

... well just add this 2 lines ....

.....
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)

; add this 2 lines

    GUICtrlSendMsg($hListView, $LVM_SETCOLUMNWIDTH, 0, -1) ; $LVSCW_AUTOSIZE
    GUICtrlSendMsg($hListView, $LVM_SETCOLUMNWIDTH, 0, -2) ; $LVSCW_AUTOSIZE_USEHEADER

While 1
.....

( thanks to AZJIO >#4)

Edited June 30, 2013 by Pincopanco

[MyEarth]

So i need to redo the GUICtrlSendMsg everytime i'll add an item

[guinness]

What's wrong with just using _GUICtrlListView_SetColumnWidth? Then you don't have to mess around with all that message sending stuff (if you're a novice.)

[Gianni]

I'm sorry guinness
I modified MyEarth's listing (line 16) following your advice,

expandcollapse popup

#include <GUIConstantsEx.Au3>
#include <GuiListView.au3>
#include <GUIEdit.Au3>

$hGUI = GUICreate("Form", 539, 347, -1, -1)
$hListView = GUICtrlCreateListView("Column", 150, 25, 175, 250)
_GUICtrlListView_SetColumnWidth($hListView, 0, $LVSCW_AUTOSIZE) ; <- used thi instead of GUICtrlSendMsg()
; GUICtrlSendMsg(-1, $LVM_SETCOLUMNWIDTH, 0, -2)
GUISetState(@SW_SHOW)

Sleep(1000)

GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)
GUICtrlCreateListViewItem("adsdasadsadsads", $hListView)


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

but the listbox is displayed with a strange look

where am I wrong?

thanks

[guinness]

No need to be sorry. This looks fine to me.

#include <GUIConstantsEx.Au3>
#include <GUIListView.au3>

Example()

Func Example()
    Local $hGUI = GUICreate('')
    Local $iListView = GUICtrlCreateListView('Column', 5, 5, 390, 390)
    GUISetState(@SW_SHOW, $hGUI)

    For $i = 1 To 20
        GUICtrlCreateListViewItem('adsdasadsadsads', $iListView)
    Next
    _GUICtrlListView_SetColumnWidth($iListView, 0, $LVSCW_AUTOSIZE) ; <- used thi instead of GUICtrlSendMsg()


    While 1
        Switch GUIGetMsg()
            Case $GUI_EVENT_CLOSE
                ExitLoop
        EndSwitch
    WEnd
    GUIDelete($hGUI)
EndFunc   ;==>Example

[Gianni]

ok
I need to move _GUICtrlListView_SetColumnWidth after GUICtrlCreateListViewItem, (so the listview takes a better look.)

However, if you add a new row with GUICtrlCreateListViewItem with a length greater than the previous ones after the  _GUICtrlListView_SetColumnWidth, it must be invoked again to adjust the new ColumnWidth, I was hoping that it did automatically....

[guinness]

No, because it can't predict what item lengths will be posted in the future. It's basically like double-clicking on the column, but without the need for a mouse.

[Gianni]

I do not was claiming a "clairvoyant" listview , perhaps a kind of an internal "OnChange" event managed in the listview's background could do...

Edited June 30, 2013 by Pincopanco

[guinness]

Look at WM_NOTIFY and LVN_INSERTITEM.

[nullschritt]

  On 6/30/2013 at 6:04 AM, AZJIO said:

#include <ListViewConstants.au3>

Local $hGUI, $ListView

$hGUI = GUICreate("ListView", 540, 360, 100, 200)
GUISetBkColor(0xd5d2af)

$ListView = GUICtrlCreateListView("Col1|Col2|Col3|Col4", 10, 10, 520, 340)
; GUICtrlSetBkColor(-1, 0xFFFEEE)
For $t = 1 To Random(1, 10, 1)
    $str = ''
    For $i = 1 To 4
        For $j = 1 To Random(1, 10, 1)
            $str &= Chr(Random(65, 90, 1))
        Next
        $str &= '|'
    Next
    $str = StringTrimRight($str, 1)
    GUICtrlCreateListViewItem($str, $ListView)
Next

GUISetState()

Sleep(1500)
For $i = 0 To 3
    GUICtrlSendMsg($ListView, $LVM_SETCOLUMNWIDTH, 0, -1) ; $LVSCW_AUTOSIZE
    GUICtrlSendMsg($ListView, $LVM_SETCOLUMNWIDTH, 0, -2) ; $LVSCW_AUTOSIZE_USEHEADER
Next

Do
Until GUIGetMsg() = -3

I love you! Thanks. This worked great.

Edit: One other question if I may though, when I detect clicking on the listview, I can't seem to recall how to get the current element clicked, Is there a way to get the text and id of the element that is clicked, on every click?

Edited June 30, 2013 by nullschritt

[guinness]

Search for WM_NOTIFY in the help file. Example is already present, but you will have to swap out the UDF listview for the native version.

[nullschritt]

  On 6/30/2013 at 4:33 PM, guinness said:

Search for WM_NOTIFY in the help file. Example is already present, but you will have to swap out the UDF listview for the native version.

I'm able to get an output like so:

+======================================================
-->Line(0067):  $NM_CLICK
--> hWndFrom:   0x0008145A
-->IDFrom:  21
-->Code:    -2
-->Index:   -1
-->SubItem: 0
-->NewState:    0
-->OldState:    19329680
-->Changed: 0
-->ActionX: 0
-->ActionY: 0
-->lParam:  7859784
-->KeyFlags:    0
+======================================================

But how do I get the actual text of what's been clicked?