Cancelling the ListView SelectedIndexChanged event

[InvisibleDuncan]

I have a ListView that populates some fields whenever the user selects an item. However, if they change the data in the fields and then select a new item without saving, I want to display a message box that warns that their changes will be lost, and asks them to confirm whether to continue. Sounds simple

Unfortunately, the ListView's SelectedIndexChanged event cannot be cancelled, and it's actually called for each change in the selection. So, for example, if item 1 is selected and the user then selects item 2, the event is called twice: once to remove the selection of item 1, and then to add the selection of item 2. If you go from having one item selected to having five (for example), the event fires to remove your original selection, and then again for each of your new selections - six hits in all

Obviously, this makes it a pain to determine when the event should be cancelled and reset back to the original. I obviously don't want my message box appearing six times....

Does anyone have a workaround for this

Thanks...

[Cor Ligthert]

Hi Invisible,

I made something, I think from this you should have to be able to make it
yourself?

Cor

\\\
Private Sub Form1_Load(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles MyBase.Load
ListView1.MultiSelect = False
ListView1.Items(0).Selected = True
End Sub
Private Sub ListView1_SelectedIndexChanged(ByVal _
sender As System.Object, ByVal e As System.EventArgs) _
Handles ListView1.SelectedIndexChanged
Static previous As Integer
If ListView1.SelectedItems.Count > 0 Then
Dim this As Integer = _
DirectCast(ListView1.SelectedItems(0), ListViewItem).Index
If this <> previous Then
MessageBox.Show("I am selected on row " & (this +
1).ToString)
End If
End If
End Sub
///

[InvisibleDuncan]

Cor,

That looks very promising - I'll have a go with it and see what I can come up with.

Thanks for taking the time.

--
Duncan