IntervalSelector

private IntervalSelector intervalSelector;
  
private DependencyObject LoadXAML()
{
    // Note: pageContent (not demonstrated in this example) is the page content of the XAML
  
    // Find the Interval selector
    intervalSelector = LogicalTreeHelper.FindLogicalNode(pageContent, "intervalSelector") as IntervalSelector;
    if (intervalSelector != null)
        intervalSelector.IntervalChanged += OnIntervalChanged;
}
  
// This method is fired when our interval selector changes intervals
private void OnIntervalChanged(object sender, BarsPeriodEventArgs e)
{
    if (e.BarsPeriod == null)
        return;
}
  
/***IIntervalProvider** member. Required if you want to use the interval linker mechanism on this window.
No functionality has been linked to the interval linker in this sample.*/
public BarsPeriod BarsPeriod { get; set; }
  
// NOTE: Don't forget to clean up resources and unsubscribe to events
// Called by **TabControl** when tab is being removed or window is closed
public override void Cleanup()
{
    // Clean up our resources
    if (intervalSelector != null)
        intervalSelector.IntervalChanged -= OnIntervalChanged;
    base.Cleanup();
}