private void OnReachBottom()
{
if (ReachBottom != null)
{
ReachBottom.Invoke();
}
}
private void listBox_VerticalScrollBar_ValueChanged(object sender, RoutedPropertyChangedEventArgs <double> e)
{
ScrollBar sb = sender as ScrollBar;
if (sb.Value >= sb.Maximum - 50)
{
if (DateTime.Now - lastRaiseTime < TimeSpan.FromSeconds(2))
{
return;
}
ReachBottom?.Invoke(this, new EventArgs());
lastRaiseTime = DateTime.Now;
}
}