Under Review
Last Updated: 20 Aug 2019 11:46 by ADMIN

Using the RadPieChart and PieSeries (UI for Xamarin v2019.2.802.1 from NuGet), I can currently set the LabelBinding (or LabelFormat or LabelFormatter) to adjust the strings displayed in the labels on the slices of the pie chart, but unlike other chart controls, I currently have no way to modify the styling of those labels like I can in every other chart control I've used from Telerik UI for Xamarin.

It seems to me that it would be best to have more properties on the PieSeries class, like LabelFontSize, LabelFontAttributes, LabelFontFamily, LabelTextColor, and LabelMargin (Label prefix to distinguish from LegendTitleBinding could be kept or discarded as desired on some of these names).

LabelMargin would be particularly helpful to eliminate the UWP situation wherein currently all pie slice labels overlap with the outer lighter ring of the pie chart (see image from UWP).  The others just seem needed to maintain a consistent appearance of charts within an app - if all my chart labels are dark blue and a different font size and style except for the not-style-able black labels in pie charts, that makes pie charts hard to incorporate without looking bad or forcing styling elsewhere to match the pie charts' fixed values.

Last Updated: 23 Jul 2019 15:45 by ADMIN
Created by: Patrick
Comments: 1
Category: Chart
Type: Feature Request
Allow customers to set rotation of the labels of the separate bars in a similar manner as their format.
Last Updated: 15 Jul 2019 08:38 by ADMIN
When you set custom stroke to ScatterLineSeries, the colors in the RadLegend are not updated.
Last Updated: 16 Jul 2019 09:51 by ADMIN

If you have a Chart with BarSeries and TooltipBehavior defined, the tooltip of each bar is shown only when the user taps in the area around the tip of the bar.

The expected behavior is the tooltip to be displayed when clicking anywhere on the bar.

Last Updated: 12 Jun 2019 14:37 by ADMIN
In the case of multiple axes, provide the possibility to add a third y-axis in the middle of a RadCartesianChart.
Last Updated: 12 Jun 2019 12:43 by ADMIN
When you set RadLegend`s VerticalOptions or HorizontalOptions to Center - the control disappears. This can be easily observed when the Orientation of the legend is horizontal, but can be reproduced in vertical mode too by setting the HorizontalOptions to Center.
Last Updated: 09 May 2019 08:39 by ADMIN
When you have some Series defined and dynamically clear and add new Series, those are not displayed correctly on iOS - it seems the vertical axis is not extended, and all the data points are visualized on the horizontal axis.
Last Updated: 06 May 2019 13:05 by ADMIN
If the user pinches in the vertical direction, only the Y-Axis should zoom and the x-axis scale should remain the same.

If the user pinches in the horizontal direction, only the X-Axis should zoom and the y-axis scale should remain the same.
Last Updated: 24 Apr 2019 12:35 by ADMIN
Setting SelectedPointOffset and RadiusFactor in DonutSeries or PieSeries causes unexpected behavior when selecting a pie piece in the chart.
Last Updated: 25 Apr 2019 08:18 by ADMIN
Created by: Michael
Comments: 3
Category: Chart
Type: Feature Request

Hi there,


I would like to have support for selecting a slice of the piechart from code-behind. I have have looked into the chart and series properties but found no selectable datapoints property. The chartSelectionBehavior offers a ClearSelection method and the readonly SelectedPoints property, but nothing to add a selected point.


Last Updated: 05 Apr 2019 08:19 by ADMIN
Once the data of the bar chart is changed, the selection behavior does not fire. The issue is reproducible when the chart is placed inside AnimationPanel,
Last Updated: 01 Apr 2019 10:50 by ADMIN
The issue seems to be down to the width - either calculated or set. Some widths seem to cause the lines to appear - refer to the attached chart_grey_lines.png file.

Workaround: manually calculate the screen width upon load and to set the width to a corresponding lookup value
Last Updated: 22 Mar 2019 13:18 by ADMIN
SelectionChanged event of the Chart SelectionBehavior is not raised for LineSeries when DataPointSelectionMode is "Single" and  SeriesSelectionMode is "None".  

Last Updated: 11 Mar 2019 08:39 by ADMIN

If we have a Chart with combined barseries and lineseries, and the lineseries is added first, the bars are misaligned - they are not placed in the center of the axis label on Android.

As a workaround, make sure to add first the barseries, then the lineseries.

Last Updated: 01 Mar 2019 13:12 by ADMIN

When Custom Palette is used and FillColor is set, the color is not applied to the line series.

As a workaround set the both properties of the PaletteEntry: FillColor and SrtokeColor: 

<telerikChart:PaletteEntry  FillColor="Red" StrokeColor="Red" />

Last Updated: 04 Feb 2019 14:25 by ADMIN
The iOS Chart raises an exception when null values are added at runtime
Last Updated: 30 Jan 2019 09:31 by ADMIN

When navigate to page with ScrollView and charts through PushAsync method and its animation option is true, the ScrollView freezes.

Navigation.PushAsync (new ChartsPage (), true); // ScrollView freezes


Navigation.PushModalAsync (new ChartsPage (), true); // ScrollView does not freeze
Navigation.PushAsync (new ChartsPage ()); // ScrollView does not freeze

Last Updated: 20 Feb 2019 12:48 by ADMIN
StrokeColor and Labels colors are not properly mapped in native Chart.
Last Updated: 18 Jan 2019 11:52 by ADMIN
Two of the bar series used CombineMode="Stack" and one - CombineMode="Cluster". The BarSeries with CombineMode="Cluster" overlaps the series with CombineMode="Stack".
Last Updated: 19 Dec 2018 15:51 by Didi
When RadChart is placed inside a ScrollViewer and there is tooltip displayed, scrolling the content with a slide gesture does not hide the tooltip.
1 2 3 4 5 6