[RESOLVED] Listview question

I want to use the listview double-click event to edit sub-item information in the listview. How can I determine which sub-item was double-clicked?

I use a seperate popupmenu when you right-click on a ListView item.

VB Code:

Private Sub lvwPrograms_MouseDown(Button As Integer, Shift As Integer, X As Single, y As Single)
 
If Button = 2 Then
    PopupMenu mnuEditTop
End If
 
End Sub

In the mnuEditTop menu I have Delete Item, Edit Item and New Item. The Edit Item I have an Edit Form. ;)

If you want to use the DblClick event then you can do the same. Just send the ListView items to a Edit Form.

You will need to subclass LVM_SUBITEMHITTEST (and some other) message:

VB Code:

Option Explicit
 
Private Const LVM_FIRST = &H1000
Private Const LVHT_NOWHERE As Long = &H1
Private Const LVHT_ONITEMICON As Long = &H2
Private Const LVHT_ONITEMLABEL As Long = &H4
Private Const LVHT_ONITEMSTATEICON As Long = &H8
Private Const LVHT_ONITEM As Long = (LVHT_ONITEMICON Or LVHT_ONITEMLABEL Or LVHT_ONITEMSTATEICON)
Private Const LVM_SUBITEMHITTEST As Long = (LVM_FIRST + 57)
 
Private Type POINTAPI
   x As Long
   y As Long
End Type
 
Private Type HITTESTINFO
   pt As POINTAPI
   flags As Long
   iItem As Long
   iSubItem  As Long
End Type
 
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" _
  (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
 
Dim hti As HITTESTINFO
 
Private Sub ListView1_DblClick()
Dim iRes As Long
Dim iItemIndex As Long
Dim iSubitemIndex As Long
 
On Error Resume Next
 
    iRes = SendMessage(ListView1.hwnd, LVM_SUBITEMHITTEST, 0, hti)
    
    iItemIndex = hti.iItem + 1
    iSubitemIndex = hti.iSubItem
    
    ListView1.ListItems(iItemIndex).Selected = True
    
    MsgBox ListView1.ListItems(iItemIndex).SubItems(iSubitemIndex)
 
End Sub
 
Private Sub ListView1_MouseDown(Button As Integer, Shift As Integer, x As Single, y As Single)
     With hti
        .pt.x = (x / Screen.TwipsPerPixelX)
        .pt.y = (y / Screen.TwipsPerPixelY)
        .flags = LVHT_ONITEMICON Or LVHT_ONITEMLABEL Or LVHT_NOWHERE
    End With
End Sub

edit: code was slightly simplified

I think I can use the MouseDown event that KeithUK mentioned to determine which column was last clicked. Then handle the DoubleClick event to place a text box over the appropriate column and list item. I'll post some code when I get it to work.

This works

[Highlight=VB]

Option Explicit
Private mlngColumnNumberClicked As Long

Private Sub Form_Load()

SetupListView
Text1.Visible = False

End Sub

Private Sub SetupListView()
Dim itmX As ListItem

With ListView1
.ColumnHeaders.Clear
.ColumnHeaders.Add , , "Equipment Type", .Width / 5
.ColumnHeaders.Add , , "Asset Number", .Width / 5
.ColumnHeaders.Add , , "Manufacturer", .Width / 5
.ColumnHeaders.Add , , "Model Number", .Width / 5
.ColumnHeaders.Add , , "Next Cal Date", .Width / 5

.ListItems.Clear

.BorderStyle = ccFixedSingle
.BackColor = vbWhite
.Checkboxes = False
.Enabled = True
.FlatScrollBar = False
.FullRowSelect = True
.GridLines = True
.HideSelection = False
.LabelEdit = lvwManual
.LabelWrap = False
.MultiSelect = False
.Sorted = False
.View = lvwReport

Set itmX = .ListItems.Add(, , "Voltmeter")
itmX.SubItems(1) = "121212"
itmX.SubItems(2) = "HP"
itmX.SubItems(3) = "34401A"
itmX.SubItems(4) = "1/1/2007"
Set itmX = Nothing
End With

End Sub

Private Sub ListView1_DblClick()

If mlngColumnNumberClicked > 1 Then
With ListView1
Text1.Left = .Left + .ColumnHeaders(mlngColumnNumberClicked).Left
Text1.Width = .ColumnHeaders(mlngColumnNumberClicked).Width
Text1.Top = .Top + .ListItems(.SelectedItem.Index).Top
Text1.Height = .ListItems(.SelectedItem.Index).Height
Text1.Visible = True
Text1.Text = .ListItems(.SelectedItem.Index).SubItems(mlngColumnNumberClicked - 1)
Text1.SelStart = 0
Text1.SelLength = Len(Text1.Text)
Text1.SetFocus
End With
End If

End Sub

Private Sub ListView1_MouseDown(Button As Integer, Shift As Integer, x As Single, y As Single)
Dim lngColumnHeaderIndex As Long

Text1.Visible = False

With ListView1
For lngColumnHeaderIndex = 1 To .ColumnHeaders.Count
If x >= .ColumnHeaders(lngColumnHeaderIndex).Left And x <= .ColumnHeaders(lngColumnHeaderIndex).Left + .ColumnHeaders(lngColumnHeaderIndex).Width Then
mlngColumnNumberClicked = lngColumnHeaderIndex
Exit For
End If
Next lngColumnHeaderIndex
End With

End Sub
[Highlight=VB]