Getting the Control ID of an existing Listview item

[Jdop]

For some reason this is escaping me.

The ControlID is created when GUICtrlCreateListViewItem() is called. No problem.

I want to go back later in the code , after some manipulations to the listview, and change the text color on individual items.

I can't seem to find how to retrieve the controlID programmatically when listview position is known. I need the controlID in order to change the color.

I'm quite sure this can be done, but not having any luck divining the method.

[Beege]

I'm confused. Why can't you use the ctrlID returned from GUICtrlCreateListViewItem()?

[Jdop]

1) I'd have to store it for later use and there are multiple items (20 or 30)

2) I delete items from the original array, so I'd have to manipulate the stored pointers , adding to the complexity.

There should be a way of getting the current controlID of a listitem.

[Fire]

Hi.

For get selected item from Listview you can use:

_GUICtrlListView_GetSelectedIndices($List1)

Edited March 9, 2010 by Sh3llC043r

[Jdop]

Dont think so Sh3llC043r, I need the control ID not the index within the list.

I thought this would be a simple one, guess not.

[Melba23]

Jdop,

Does this UDF help any?

M23

[Yashied]

Jdop,

As Beege said, you must use the ID that returns a GUICtrl... functions. Moreover, "ListItem" has no valid ID, it's effective only within AutoIt.

Edited March 9, 2010 by Yashied

[Jdop]

Jdop,

Does this UDF help any?

M23

I thought that might be of help but it's overkill for my question and has some bugs when I tried to run it.

Must be a way to easily retrieve the existing controlID of a listview item.

[wraithdu]

Really, no one knows this? Here ya go:

#NoTrayIcon
#include <GuiListView.au3>

$gui = GUICreate("lvtest")
$lv = GUICtrlCreateListView("column 1", 10, 10, 200, 200)
ConsoleWrite("listview id: " & $lv & @CRLF & @CRLF)
For $i = 1 To 10
    ConsoleWrite("item" & $i & " id: " & GUICtrlCreateListViewItem("item" & $i, $lv) & @CRLF)
Next
$hlv = GUICtrlGetHandle($lv)
ConsoleWrite(@CRLF & "hlv: " & $hlv & @CRLF & @CRLF & "================" & @CRLF)
For $i = 0 To _GUICtrlListView_GetItemCount($hlv) - 1
    ConsoleWrite("item" & $i + 1 & " param: " & _GUICtrlListView_GetItemParam($hlv, $i) & @CRLF)
Next

Edited March 10, 2010 by wraithdu

[Jdop]

I actually figured it out (I forget exactly how, probably looking at some of the code references posted here) last night , but you are quite correct, _GUICtrlListView_GetItemParam is the answer.

It's one of those things , that if you don't work with the language all the time, you forget about, and it's not really intuitive based on the help file or the name.

"Retrieves the application specific value of the item "

Well, maybe you can figure out that means ControlID, but it's not all that clear.

Thanks for all the input guys.

Edited March 11, 2010 by Jdop

[wraithdu]

Yeah, it's not something any random person would know. I figured one of the other 'old timers' would have known this trick.

I figued it out while working with the sorting functions for UDF created listview items. You have to specify the 'param' yourself or the sorting doesn't work. It's also where AutoIt stores it's 'control ID' for listview items. In real win32, listview items don't have control IDs. It's just an internal AutoIt thing so it can manage them for you.

[LeCarre]

Indeed I had this issue.

I store the ControlID's in an array, but after sorting...

Created ID's After Sorting ID's

10 12

11 10

12 11

Clicking on the 1st ListView Item (after sorting) Returns Index of 1, my array containing ID's has a value of 10 in the first position.

There is no way to use my array to find the CntrlID of the clicked item

_GUICtrlListView_GetItemParam did the trick. But I felt compelled to explain how I fell into this rut

Still wondering why there is not Internal Answer, but having to goto UDF's for this...

[sudeepjd]

I know this post is old, I came across is since I was looking for a solution to change the color of the items. I am creating the items with _GUICtrlListView_AddArray in most places in my program.. and manipulating the data by inserting new rows, deleting rows etc. So the UDF is a good option. The only way I could solve this problem was to recreate the items with the native GUICtrlCreateListItem and then use the _GUICtrlListView_GetItemParam to retreive the control ID.

I hope this helps somebody who is also looking for the same answer. I dont know if there is a better way to do this.. But for me it works.

 

;Color the listview
Func _GUICtrlListView_SetItemBkColor($hWnd, $Item_index, $Color_RGB)

   ;Assign ControlIDs to the ListView Items
   $cnt = _GUICtrlListView_GetItemCount($hWnd)
   Local $data[$cnt]

   For $i = 0 to $cnt-1
      $data[$i] = _GUICtrlListView_GetItemTextString($hWnd, $i)
   Next

   _GUICtrlListView_DeleteAllItems($hWnd)

   For $i = 0 to $cnt-1
      GUICtrlCreateListViewItem($data[$i], $hWnd)
   Next

   $ctrlID = _GUICtrlListView_GetItemParam($hWnd, $Item_index)
   GUICtrlSetBkColor($ctrlID, $Color_RGB)
EndFunc   ;==>_GUICtrlListView_SetItemBkColor

 

[Starky]

#include <GuiListView.au3>
_GUICtrlListView_MapIndexToID ( $hWnd, $iIndex )

I know the post is old, but seeming as it was within the top 3 results on Google when I looked into this, I felt this needs to be in here.