NullReferenceException on updating data when mouse is over chart's area and trackballinfo is visible. 

To workaround this, remove the TrackBallBehavior when data is updated and add it again on MouseMove.

Will be available in Q1 2015 Release.

There are scenarios where the actual minimum and maximum of the axis are of high importance but they are not displayed (due to TickOrigin). For instance if the axis range is (-1, 11) and TickOrigin is "0", the labels will be (0, 2, 4...) and "-1" and "11" will not be displayed. 

The ability to select a series instead of a series' items.

Currently the ChartSmartLabelsStrategy places the labels outside the bars, not taking into consideration the Horizontal and Vertical Alignment of the label definition.

If you set the PolarAxis.Maximum property to value which is equal to or less than the smallest value of a series, a DevideByZero exception is thrown.

Fixed in Q3 2014

A design time exception may be thrown in certain scenarios.

Workaround:
The issue is caused by the MajorTickInterval property, so one way to go is to remove this setting and use the LabelInterval instead. This will plot more ticks than before, but should eliminate the label clip. If the number of ticks bothers you, you can set the MajorTickLength property of the axis to 0 (so that the ticks are not visible) and use a LabelTemplate in which you will include a label and a tick. 

Another, simpler, work-around is to set a right margin of the chart and set the ClipToBounds property of the chart to false.

It would be very useful if Charts would support multiple SeriesProviders to be able to plot data of different types without having to artificially consolidate them into a single list with the charting attirbutes exposed via the same properties.

Available in LIB Version 2015.2.907.

When there is defined a ChartPanAndZoomBehavior and the axes of the chart are switched at run-time, the orientation of the PanZoomBar elements it is not changed.

Workaround:
Get the PanZoomBar element and set its Orientation property.

private void TrySetOrientation(CartesianAxis axis, Orientation orientation)
{
    var panZoomBar = Telerik.Windows.Controls.ChildrenOfTypeExtensions.FindChildByType<PanZoomBar>(axis);
    if (panZoomBar != null)
    {
        panZoomBar.Orientation = orientation;
    }
}

private void SwapAxes()
{           
    // Swapping code here

    this.Dispatcher.BeginInvoke((Action)(() =>
    {
        this.TrySetOrientation(this.chart.HorizontalAxis, Orientation.Horizontal);
        this.TrySetOrientation(this.chart.VerticalAxis, Orientation.Vertical);
    }));
}

The fix is available in LIB Version 2015.1.0420.

The data points are not rendered when the series' axis is set at runtime through a DataTrigger in the series' style. 

Note: The data points are rendered when the chart is resized or zoomed.

Workaround:
Change the resource type in the DataTrigger that changes the axis - instead of DynamicResource, use StaticResource. 

<telerik:CategoricalSeriesDescriptor.Style>
    <Style TargetType="telerik:LineSeries">
        <Style.Triggers>
            <DataTrigger Binding="{Binding Path=Axis}" Value="Left">
                <Setter Property="VerticalAxis" Value="{StaticResource AxisLeft}"/>
            </DataTrigger>
            <DataTrigger Binding="{Binding Path=Axis}" Value="Right">
                <Setter Property="VerticalAxis" Value="{StaticResource AxisRight}"/>
            </DataTrigger>
        </Style.Triggers>
    </Style>
</telerik:CategoricalSeriesDescriptor.Style>

When there are no data points in the bar series, the chart fails to retrieve a color for the marker of the legend item. This can be worked around by modifying the item template of the legend item. In the new template the binding of the Fill of the marker, should include not just the MarkerFill but TargetNullValue:

<DataTemplate x:Key="legendItemContentTemplate1">
 <StackPanel Orientation="Horizontal">
  <Path Fill="{Binding MarkerFill, TargetNullValue=#9B25B1}" Width="12" Height="12">
   <Path.Data>
    <Binding Path="ActualMarkerGeometry" 
      RelativeSource="{RelativeSource AncestorType=telerik:LegendItemControl}" />
   </Path.Data>
  </Path>
  <TextBlock Margin="2" Text="{Binding Title}" />
 </StackPanel>
</DataTemplate>


Will be available in Q2 2016 Release.

A NullReferenceException is thrown when the Strategy of the series is set


Available in LIB version: 2017.2.605

Workaround:
One way to work around this is to set the plot mode of the axis to OnTicksPadded. 

Add support for 3D Series Type in RadChartView.

A RadCartesianChart3D was introduced with R3 2016. You can use its BarSeries3D to easily achieve the Manhattan chart visualization.

See the documentation: 
http://docs.telerik.com/devtools/wpf/controls/radchartview3d/overview
See the SDK examples: 
https://github.com/telerik/xaml-sdk/tree/master/ChartView3D/WPF
See the demos: 
https://demos.telerik.com/wpf/

MovingAverageIndicator doesn't recalculate its data points when a new item is added in its ItemsSource at runtime

Workaround:
To update the data points of the indicator reset its Period property when a new item is added in the ItemsSource. For example:

// add new item
var indicator = chart.Indicators[0] as MovingAverageIndicator;
var period = indicator.Period;
indicator.Period = 0;
indicator.Period = period;