Is there an event that triggers if the number of ListViewItems in a ListView changes? (Windows Forms)

Question

I\'d like to enable/disable some other controls based on how many items are in my ListView control. I can\'t find any event that would do this, either on the

Answer 1

I can't find any events that you could use. Perhaps you could subclass ListViewItemCollection, and raise your own event when something is added, with code similar to this.

Public Class MyListViewItemCollection
    Inherits ListView.ListViewItemCollection

    Public Event ItemAdded(ByVal Item As ListViewItem)

    Sub New(ByVal owner As ListView)
        MyBase.New(owner)
    End Sub

    Public Overrides Function Add(ByVal value As System.Windows.Forms.ListViewItem) As System.Windows.Forms.ListViewItem
        Dim Item As ListViewItem

        Item = MyBase.Add(value)

        RaiseEvent ItemAdded(Item)

        Return Item
    End Function
End Class