create a timer from toolbox and set interval to 1000
under the tick_event of the timer1
just write this code
Static x As Integer = 0
If ListView1.Items.Count > x Then
x += Val(ListView1.Items.Count - x)
ElseIf ListView1.Items.Count < x Then
x -= Val(x - ListView1.Items.Count)
End If
Label1.Text = x
please make sure you flag this as solved if it helped you....happy coding