Completed
Last Updated: 03 Feb 2023 06:39 by ADMIN
Release LIB 2023.1.206 (6 Feb 2023)

ArgumentException occurs when the ItemsSource of the chart series is populated with items that implement the ICustomTypeProvider interface and the value binding properties of the series  (ValueBinding, CategoryBinding, YValueBinding, XValueBinding, etc.) are assigned to dynamic properties. This happens when the value binding properties are assigned to PropertyNameDataPointBinding object pointing to a property name. This is also what happens if you set the properties in XAML using string values.

To work this around, you can use the GenericDataPointBinding<T> class defined in code-behind in order to assign the value binding properties. 

Or alternatively, you can implement custom PropertyNameDataPointBinding class and override its GetValue() method. In the method, you can check the item type and if it is ICustomTypeProvider, and then execute custom code that gets the value. The custom PropertyNameDataPointBinding implementation is shown in the attached CustomPropertyNameDataPointBinding.zip file. To use the custom binding class in XAML, you can use the following syntax:

<telerik:ScatterPointSeries.YValueBinding>
	<local:CustomPropertyNameDataPointBinding PropertyName="Y" />
</telerik:ScatterPointSeries.YValueBinding>

Completed
Last Updated: 02 Feb 2023 13:57 by ADMIN
Release LIB 2023.1.206 (6 Feb 2023)

The SeriesCreated event of the RadChartView's SeriesProvicer is never called when the SeriesDescriptorSelector property is used.

To work this around, you can create a custom chart series descriptor and override its CreateInstanceCore method.

public class CustomScatterSeriesDescriptor : ScatterSeriesDescriptor
{
	protected override ChartSeries CreateInstanceCore(object context)
	{
		var series = (ScatterSeries)base.CreateInstanceCore(context);
		// assign whatever settings you need here
		return series;
	}
}

Unplanned
Last Updated: 16 Nov 2022 13:48 by Ashraf
The series are not rendered as expected when using Direct2DRenderOptions and hiding labels (by setting the LabelInterval, SmartLabelsMode or via a different approach)
Completed
Last Updated: 04 Nov 2022 13:38 by ADMIN
Release R2 2022
ADMIN
Created by: Dinko | Tech Support Engineer
Comments: 0
Category: ChartView
Type: Feature Request
2

			
Completed
Last Updated: 18 Oct 2022 05:46 by ADMIN
Release R1 2023
ChartView: Add support for axes rendering, when no data is available

As a workaround add a series with one point and set its color to transparent.

<telerik:ScatterLineSeries XValueBinding="."
                  YValueBinding="."
                  Stroke="Transparent">
    <telerik:ScatterLineSeries.ItemsSource>
        <x:Array Type="system:Int32">
            <system:Int32>0</system:Int32>
        </x:Array>
    </telerik:ScatterLineSeries.ItemsSource>
</telerik:ScatterLineSeries>
Unplanned
Last Updated: 12 Oct 2022 06:40 by Martin Ivanov
Created by: Martin Ivanov
Comments: 0
Category: ChartView
Type: Feature Request
1
Add ScatterRangeSplineSeries visualization, same as RangeSplineSeries, but in scatter scenario (two linear axes).
Unplanned
Last Updated: 05 Oct 2022 09:44 by Martin Ivanov

The FadeOtherSeries hover mode doesn't work when the lightweight render options (Direct2D and Bitmap) are used.

You can find one way to work this around in the attached project.

Unplanned
Last Updated: 04 Oct 2022 12:37 by ADMIN
Created by: Barnaby
Comments: 12
Category: ChartView
Type: Feature Request
6
Create 2-dimensional contour plot from unstructured 3-dimensional data.  Means the points are randomly arranged in the XY plane.

Attached file shows an example of what I would like to achieve.  I think the contour plot Telerik does currently requires a structured grid, i.e. full grid of NxM points.
Duplicated
Last Updated: 14 Sep 2022 10:05 by ADMIN

Please add the Contour series for showing the scatter (X,Y) lines which are connecting the points with the equial Z- coordinate. Currently a scatter 3D surface (X,Y,Z)  can now be shown only as 3D chart.

Often it is necessary to show 3D surface as 2D chart with lines connecting (X,Y) points with "same Z-level" .

Samples:

References:

 

Completed
Last Updated: 05 Aug 2022 09:19 by ADMIN
Release R3 2022
ADMIN
Created by: Peshito
Comments: 1
Category: ChartView
Type: Feature Request
13
Support for displaying error bars
Unplanned
Last Updated: 29 Jul 2022 08:11 by ADMIN
Created by: Nazar
Comments: 4
Category: ChartView
Type: Bug Report
1

The problem arises when we have many graphs on one window and when we scroll to the bottom then to the middle of the window and then resize the width of the window, not all graphics dynamically resize, some harden to the previous size.

I am attaching a project in which you can reproduce the problem.

And I am attaching a video where the problem is clearly demonstrated.

Please solve the problem as soon as possible for our product it is critical!

Completed
Last Updated: 27 Jul 2022 07:07 by ADMIN
Release LIB 2022.2.801 (01 August 2022)

LabelRotationAngle applies to labels only in horizontal axis.

It is mainly needed in Vertical axis, when the chart is rotated externally, when placed in rotated panel or control. In this case the vertical axis take the role of a horizontal axis visually and easy way to rotate all labels is needed for readability.

Completed
Last Updated: 14 Jun 2022 11:45 by ADMIN
Release R2 2022 SP1
Add the option for having separate PanZoomBars for each axis, so the user can scroll/zoom each axis independently from the other axes.
Unplanned
Last Updated: 17 May 2022 09:12 by Martin Ivanov
Add mechanism in RadCartesianChart to change the axis origin position. Currently, you can position it only top, left, right or bottom. Add an option to position the axis at an arbitrary position on the opposite axis. For example, to position the horizontal axis in the middle of the vertical axis or at value lets say 3.
Completed
Last Updated: 29 Mar 2022 14:36 by ADMIN
Release LIB 2022.1.314 (14/03/2022)
ADMIN
Created by: Petar Marchev
Comments: 1
Category: ChartView
Type: Feature Request
6

			
Unplanned
Last Updated: 10 Jan 2022 08:01 by ADMIN
Created by: Marea
Comments: 5
Category: ChartView
Type: Feature Request
8
I would like to be able to create a histogram where both the x and y axis are linear series and where I can specify the start and end position of each bin (not just one). Previously described workarounds include using StepLineSeries and bar series which cannot have two linear series. I cannot use a scatter plot series as they do not provide the step-wise look of the histogram.  Please add this support! 
Unplanned
Last Updated: 17 Dec 2021 09:39 by ADMIN
Created by: Martin Ivanov
Comments: 0
Category: ChartView
Type: Feature Request
1
Currently, the chart provides a selection feature where you can select data points by clicking on their visual elements (ellipses, bars, etc.) or setting the IsSelected property. Add a feature that allows you to select the entire series. This feature is meaningful when using line or area series and you want to highlight (select) the clicked series.

You can easily implement it by subscribing to the MouseLeftButtonDown event of the chart series and change the series' Stroke or Fill property.
Unplanned
Last Updated: 18 Oct 2021 12:35 by Guido
Created by: Guido
Comments: 3
Category: ChartView
Type: Bug Report
1

When a chart have long labels on the X axis (like date and time) the zoom is not accurate on the horizontal extents with both mouse wheel and drag area.

The reason is probably that the screen coordinates of the selected area are not mapped correctly on the X axis. The mapping works fine for tooltip.

 

You can verify this behavior in the attached Solution. In the images you can see the selected area (01), that the zoomed area is a region with no points (02) and the actual position of the points.

 

Unplanned
Last Updated: 08 Oct 2021 08:49 by ADMIN
The RadCartesianChart's series allows you to provide a collection of primitive types (like List<int>) to its ItemsSource which will render a proper chart, as shown in the Create Data-Bound Chart article. 

Currently, this is not supported if you use the sampling feature of the chart (ChartDataSource). ChartDataSource can't work with collections with primitive types. Add support for this.
Completed
Last Updated: 01 Sep 2021 10:45 by ADMIN
Release R3 2021
ADMIN
Created by: Giuseppe
Comments: 4
Category: ChartView
Type: Feature Request
11
Add support for BoxPlot series type either through enabling extensibility of the CandlestickSeries type, or through providing new built-in BoxPlot series type.
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