Completed
Last Updated: 23 Aug 2019 15:00 by ADMIN
Release LIB 2019.2.826 (08/26/2019)

If you click on the collapse/expand button of a group (when the data is grouped) while you add or remove an item from the ItemsSource of RadTimeline, all items disappear.

To work this around set the AnimationManager.AnimationSelector attached property on all TimelineItemGroupControl elements to null. You can do this using an implicit style.

<Window.Resources>
    <Style TargetType="telerik:TimelineItemGroupControl">
        <Setter Property="telerik:AnimationManager.AnimationSelector" Value="{x:Null}" />
    </Style>
</Window.Resources>

 

Approved
Last Updated: 26 Feb 2018 12:47 by ADMIN
RadTimeline throws OutOfMemoryException when you zoom to a small interval type (e.g. SecondInterval, MillisecondInterval) in case the control visualizes a very large period (e.g. 2-3 years). 

As a workaround you can limit the depth to which you can zoom using a larger value for the MinZoomRange property. Another way to go is to increase the IntervalSpans of the Interval. For example set IntervalSpans=500 in MillisecondInterval.
Approved
Last Updated: 04 Jan 2017 07:34 by Andrew
The control's performance is low and in most cases the application hangs when you try to reset the control's zoom to its initial state. This happens in a scenario with big period range (for example 2 years) and when a MinuteInterval is defined. When you zoom-in to a level where the minutes are displayed and then you try to zoom out with the scrollbar (or if you change manually the VisiblePeriod to match the PeriodStart and PeriodEnd), the application hangs.

Workaround:
Remove the MinuteInterval from the Intervals collection just before changing the VisiblePeriod and then add it again in the collection. 

private void ButtonBase_OnClick(object sender, RoutedEventArgs e)
{
    var interval = _timeline.Intervals.FirstOrDefault(i => i is Telerik.Windows.Controls.TimeBar.MinuteInterval);
 
    if (interval != null)
    {
        _timeline.Intervals.Remove(interval);
    }
 
    _timeline.VisiblePeriod = new SelectionRange<DateTime>(_timeline.PeriodStart, _timeline.PeriodEnd);
 
    if (interval != null)
    {
        _timeline.Intervals.Add(interval);
    }
}
Completed
Last Updated: 04 Feb 2016 13:45 by ADMIN
The theme foreground is not applied on the group header when the theme is applied with StyleManager

For example: The foreground for the Expression_Dark theme should be #FFDDDDDD, but instead it is #FF000000
Completed
Last Updated: 26 Nov 2014 14:44 by ADMIN
The theme is not propagated to the TimelineStripLineControls when it is set on the timeline control with StyleManager. Which leads to the color of every second strip line using the default color for the Office_Black theme