[SOLVED] ListViewItem Already Exists?

[zackrspv]

How to test if a listviewItem already exists before adding it.

I know how to do the guictrlread to get the value, but how do you get ALL values of the listView to ensure that you are not adding a new one?

example code

expandcollapse popup

#include <GUIConstants.au3>

$gui = GUICreate("test", 500, 500)
$ListView1 = GUICtrlCreateListView("Ticket", 0, 0, 837, 396)
guictrlsetstyle(-1, $LVS_LIST)
$update = GuiCtrlCreateButton("Update", 0, 400, 90, 25)
GUICtrlCreateListViewItem('JDJKAJEJJEK - Mary Joe, Unable to Open Windows', $ListView1)
GUICtrlCreateListViewItem('JDJKAJEJJEK - Mary Joe, Unable to Open Windows2', $ListView1)
GUICtrlCreateListViewItem('JDJKAJEJJEK - Mary Joe, Unable to Open Windows3', $ListView1)
GUICtrlCreateListViewItem('JDJKAJEJJEK - Mary Joe, Unable to Open Windows4', $ListView1)
GUICtrlCreateListViewItem('JDJKAJEJJEK - Mary Joe, Unable to Open Windows5', $ListView1)
GUICtrlCreateListViewItem('JDJKAJEJJEK - Mary Joe, Unable to Open Windows6', $ListView1)
GUICtrlCreateListViewItem('JDJKAJEJJEK - Mary Joe, Unable to Open Windows7', $ListView1)
GUICtrlCreateListViewItem('JDJKAJEJJEK - Mary Joe, Unable to Open Windows8', $ListView1)
GUICtrlCreateListViewItem('JDJKAJEJJEK - Mary Joe, Unable to Open Windows9', $ListView1)
GUIRegisterMsg($WM_NOTIFY, "WM_Notify_Events")
GUISetState(@SW_SHOW)

While 1
    $nMsg = GUIGetMsg()
    
    if $nMsg = 0 Then
    elseif $nMsg = -11 Then
    Else
        ConsoleWrite($nMsg&@CRLF)
    EndIf

    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit
        case $update
;-                      //////////////////////////// UPDATE CODE HERE ///////////////////////////////////
    EndSwitch
WEnd
;; Insert this to handle events
Func WM_Notify_Events($hWndGUI, $MsgID, $wParam, $lParam)
     #forceref $hWndGUI, $MsgID, $wParam
     Local $tagNMHDR, $event, $hwndFrom, $code
     $tagNMHDR = DllStructCreate("int;int;int", $lParam)
     If @error Then Return
     $event = DllStructGetData($tagNMHDR, 3)
     Select
     Case $wParam = $ListView1
          Select
               Case $event = $NM_click
;~                   msgbox(0,"",GUICtrlRead(GUICtrlRead($listview1),1))
                
            EndSelect
    EndSelect
endFunc

Now, let's say that when I click a button, I have the following function:

Func _GetTickets()
$ActiveTickets = _Query($sql, "SELECT * FROM tickets WHERE active=1")
With $ActiveTickets
    while NOT .EOF
        $tlcrmid = ""
        $tlcrmname = ""
        $verifyData = ""
        $tlcrmid = .Fields('crm_id').value
        $tlcrmname = .Fields('crm_name').value
        $tlmainissue = .Fields('main_issue').value
;- check if already in list
        $verifyData = Guictrlread(GuictrlRead($TicketList, 1))
        if $verifyData = $tlcrmid & " - " & $tlcrmname & ": "&$tlmainissue Then
            Else
        GUICtrlCreateListViewItem($tlcrmid & " - " & $tlcrmname & ": "&$tlmainissue, $TicketList)
        EndIf
        .MoveNext
    WEnd
EndWith
EndFunc

Obviously the above is incorrect, because it is only looking for a value that is SELECTED, not for the ENTIRE list view. But that's how I would structure it. How can I accomplish this check? I'm sure I could use an array, and then use ArraySearch to look for any value that matches it, and if fond then simply skip the step to add; but then I have no idea how to add that to an array. lol Ideas?

Thanks!

Edited April 15, 2008 by zackrspv

[PsaltyDS]

How to test if a listviewItem already exists before adding it.

I know how to do the guictrlread to get the value, but how do you get ALL values of the listView to ensure that you are not adding a new one?

One method:

If ControlListView( $gui, "", $ListView1, "FindItem" , "Old Item Text") = -1 Then
    MsgBox(64, "OK", "That item does not already exists.")
Else
    MsgBox(16, "Error", "That item already exists!")
EndIf

[zackrspv]

worked like a charm! Awesome, thanks so much