[RESOLVED] VB2010 Listview: determine which items are visible

[donW]

With the Listview in Details view:
When showing a long (scrolling) list:
Is there an (easy) way to return the index's of which range of items are currently visible in the control?

[jmcilhinney]

There's nothing specific that I'm aware of, but you could probably use the GetItemAt and/or GetItemRect methods and deduce the first and last items from that.

Note that I didn't know the answer to your question so I just opened the MSDN documentation for the ListView and had a look to see what was available. If I can do that, you can do that.

[.paul.]

try this:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    Dim visibleRange = (From item In ListView1.Items _
                       Let lvi = DirectCast(item, ListViewItem) _
                       Where lvi.Bounds.Top > ListView1.GetItemRect(0).Height AndAlso lvi.Bounds.Bottom < ListView1.Height _
                       Select lvi.Index).ToArray
    MsgBox(String.Join(",", Array.ConvertAll(visibleRange, Function(i) i.ToString)))
End Sub