Hi,
I have added an validation in ItemChecked event.
Private Sub lvCancellationOptions_ItemCheck(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs) Handles lvCancellationOptions.ItemCheck
If (lvCancellationOptions.CheckedItems.Count > 0 And e.NewValue = CheckState.Checked) Then
Dim item As ListViewItem = lvCancellationOptions.CheckedItems(0)
item.Checked = False
End If
End Sub
Best Regards
Muthuraja