Request for ranged series types.

Here's an example of such a series type from UI for WPF http://docs.telerik.com/devtools/wpf/controls/radchartview/series/cartesianchart-series/bar-series/rangebarseries 

Categorical series that have multiple data points in the same category do not stack correctly.

Edit: Avalable in R3 2017 SP release.

Allow the user to customize the origin of rotation for axis labels.

The chart BindingContext does not propagate correctly to some of its children, e.g. axes and grid.

Available in the R3 2018 SP release.

If customers set bindings to these properties and try to set range from negative to positive values (e.g. from -0.5 to 0.5) the bindings are not applied as expected.

Labels of the axis can get trimmed when data is updated at runtime.

Support the ability to apply palette per point for a bar series.
Available in the R3 2017 release.

Provide ability to chart series to appear with animation

Expose API for series items label formatting in the chart.

Add support for dynamic series through ChartSeriesProvider API

Null value support for Chart for Xamarin Forms, so that if there is a null value, a line chart should appear "disconnected" at the point where the nulls are.


Available in the R3 2018 SP release.

Currently, depending on the platform, the first piece of the pie is drawn at 3 or 9 o'clock. It should be possible for the developer to set the starting point to be 12 o'clock.

Put several Pie charts in a StackPanel and set the WidthRequest and HeightRequest to let's say 60. You will notice that the circular pie itlsef appears much smaller than the expected 60. In Android and Windows Phone it appears as expected.

It will be a nice addition for the chart to display harvey balls, where each ball is displayed exactly under one bar (or another data point representation).

Allow easy exporting of a chart to a Xamarin.Forms image object. This will allow the images to be shared using social media.

When the chart has a lot of data, you may not necessarily want to show it all when the chart initially appears, but you may want to show the chart in a semi-zoomed state. Therefore, there should be properties which govern the ranges by which the chart should appear zoomed initially. So, the end-user should be able to zoom in/out starting from this state and then return to the same state if necessary (avoiding getting the whole data if he zooms out too much).

The Chart should be able to display callout annotations.

The data points should allow setting shape and color to each one individually.

A common scenario for the Chart is to have several Y-Axis, where some could be on the left, others could be on the right side of the Chart.