Unplanned
Last Updated: 20 Jul 2020 06:17 by ADMIN
Created by: Vivek
Comments: 0
Category: ChartView
Type: Feature Request
0
Narrator should read the category and value for the clicked data point.
Unplanned
Last Updated: 23 Jun 2020 11:30 by ADMIN

Good day,

My requierment is to have a RadChartView with a LineSeries and a RangeSeries.  I add CategoricalDataPoint objects manually to the LineSeries and I manually add RangeDataPoint objects to the RangeSeries. 

 

When I encounter NULL valued datapoints, for the LineSeries, I do the following.  The NULL valued datapoints appear as gaps in the chart as expected.

Dim value As Nullable(Of Double)
Dim serControl  As  LineSeries

serControl = New LineSeries()
chart.Series.Add(serControl)
value = IIf(IsDBNull(dr(data.ControlParameter.ID.ToString())), New Nullable(Of Double), dr(data.ControlParameter.ID.ToString()))
serControl.DataPoints.Add(New Telerik.Charting.CategoricalDataPoint(value))

 

However the RangeSeries do not handle the NULL valued datapoints the same.  I get the following error:  Nullable object must have a value.

Dim LowerBound, UpperBound As Nullable(Of Double)
Dim serRange  As  RangeSeries

serRange = New RangeSeries()
chart.Series.Add(serRange)
LowerBound = IIf(IsDBNull(dr("Lowerbound"), New Nullable(Of Double), dr("LowerBound"))
UpperBound = IIf(IsDBNull(dr("Upperbound"), New Nullable(Of Double), dr("UpperBound"))
serRange.DataPoints.Add(New Telerik.Charting.RangeDataPoint(UpperBound, LowerBound))

 

I need to be able to show gaps, not zero's in a RangeSeries when there are NULL values.

 

How can I do this?

Completed
Last Updated: 27 Apr 2020 07:40 by ADMIN
Release R2 2020

Currently, RadChartView offers exporting to a Bitmap in one of the following formats: https://docs.microsoft.com/en-us/dotnet/api/system.drawing.imaging.imageformat?view=netframework-4.8

It would be nice to have export functionality to  a vector image.

 
Unplanned
Last Updated: 10 Mar 2020 06:37 by ADMIN
When setting the border color of the axis the labels are showing a border with the same color. The color is inherited from the axis element. One should be able to easily disable this, or it should not happen.

How to reproduce: 
public partial class RadForm1 : Telerik.WinControls.UI.RadForm
{
    LineSeries lineSeries;

    public RadForm1()
    {
        InitializeComponent();

        this.lineSeries = new LineSeries();

        this.lineSeries.DataPoints.Add(new CategoricalDataPoint(20, "Jan"));
        this.lineSeries.DataPoints.Add(new CategoricalDataPoint(22, "Apr"));
        this.lineSeries.DataPoints.Add(new CategoricalDataPoint(25, "Jul"));
        this.lineSeries.DataPoints.Add(new CategoricalDataPoint(19, "Oct"));

        this.radChartView1.Series.Add(this.lineSeries);

        this.lineSeries.HorizontalAxis.BorderColor = Color.Green;
        this.lineSeries.VerticalAxis.BorderColor = Color.Blue;
    }
}

Workaround: iterate each of the axis labels and set their border color to Transparent
public partial class RadForm1 : Telerik.WinControls.UI.RadForm
{
    LineSeries lineSeries;

    public RadForm1()
    {
        InitializeComponent();

        this.lineSeries = new LineSeries();

        this.lineSeries.DataPoints.Add(new CategoricalDataPoint(20, "Jan"));
        this.lineSeries.DataPoints.Add(new CategoricalDataPoint(22, "Apr"));
        this.lineSeries.DataPoints.Add(new CategoricalDataPoint(25, "Jul"));
        this.lineSeries.DataPoints.Add(new CategoricalDataPoint(19, "Oct"));

        this.radChartView1.Series.Add(this.lineSeries);

        this.lineSeries.HorizontalAxis.BorderColor = Color.Green;
        this.lineSeries.VerticalAxis.BorderColor = Color.Blue;
    }

    protected override void OnShown(EventArgs e)
    {
        base.OnShown(e);

        foreach (var item in this.lineSeries.VerticalAxis.Children)
        {
            AxisLabelElement label = item as AxisLabelElement;
            if (label != null)
            {
                label.BorderColor = Color.Transparent;
            }
        }

        foreach (var item in this.lineSeries.HorizontalAxis.Children)
        {
            AxisLabelElement label = item as AxisLabelElement;
            if (label != null)
            {
                label.BorderColor = Color.Transparent;
            }
        }
    }
}
Completed
Last Updated: 12 Feb 2020 08:00 by ADMIN
Release R1 2020 SP1
Currently, there is no built-in way to indicate an arbitrary area.
Completed
Last Updated: 03 Jul 2019 13:41 by Jonathan
Release R3 2019 (LIB 2019.2.708)
Currently, there is no way to increase the line thickness.
Completed
Last Updated: 03 Jul 2019 11:22 by ADMIN
Release R3 2019 (LIB 2019.2.708)
The same issue can be observed in a DPI-aware application on higher scaling
Workaround: set the RadControl.EnableDpiScaling property to false

public partial class Form1 : Form
{
    public Form1()
    {
        RadControl.EnableDpiScaling = false;

        InitializeComponent();

        LineSeries lineSeries = new LineSeries();
        lineSeries.DataPoints.Add(new CategoricalDataPoint(20, "Jan"));
        lineSeries.DataPoints.Add(new CategoricalDataPoint(22, "Apr"));
        lineSeries.DataPoints.Add(new CategoricalDataPoint(12, "Jul"));
        lineSeries.DataPoints.Add(new CategoricalDataPoint(19, "Oct"));
        this.radChartView1.Series.Add(lineSeries);

        LineSeries lineSeries2 = new LineSeries();
        lineSeries2.DataPoints.Add(new CategoricalDataPoint(18, "Jan"));
        lineSeries2.DataPoints.Add(new CategoricalDataPoint(15, "Apr"));
        lineSeries2.DataPoints.Add(new CategoricalDataPoint(17, "Jul"));
        lineSeries2.DataPoints.Add(new CategoricalDataPoint(22, "Oct"));
        this.radChartView1.Series.Add(lineSeries2);
        
        LassoZoomController lassoZoomController = new LassoZoomController();
        radChartView1.Controllers.Add(lassoZoomController);
    }

    private void radButton1_Click(object sender, EventArgs e)
    {
        this.radChartView1.ExportToImage(@"..\..\image.png", this.radChartView1.Size);
    }
}
Unplanned
Last Updated: 10 Jun 2019 13:32 by ADMIN
How can I achieve the same behaviour as with the obsolete RadChart plotting the area between the maxima of a sine. 
Unplanned
Last Updated: 06 Nov 2018 14:45 by Eric Moreau
ADMIN
Created by: Nikolay
Comments: 18
Category: ChartView
Type: Feature Request
14
3D Charts will be a nice addition to the WinForms suite
Completed
Last Updated: 28 Aug 2018 12:33 by Dimitar
ADMIN
Created by: Hristo
Comments: 0
Category: ChartView
Type: Feature Request
0

					
			
Completed
Last Updated: 18 Jun 2018 14:35 by Nathan
ADMIN
Created by: Hristo
Comments: 5
Category: ChartView
Type: Feature Request
2
The new controller should allow lasso selection of data points without zooming the view port.
Unplanned
Last Updated: 30 Apr 2018 10:46 by ADMIN
Created by: promat
Comments: 1
Category: ChartView
Type: Feature Request
0
It would be great to be able to generate Box Plot graphics, both in the RadCharView control and in the Report.
Completed
Last Updated: 06 Feb 2018 07:16 by ADMIN
ADMIN
Created by: Dimitar
Comments: 0
Category: ChartView
Type: Feature Request
0
https://demos.telerik.com/kendo-ui/radar-charts/radar-column

The attached proejct shows a sample implementation.
Unplanned
Last Updated: 16 Nov 2017 11:41 by ADMIN
When combining scalebreaks and series stacking, the rendered chart does not match the data. 

See attached solution: The bar of the category "1/2016" has a length of 105 (as indicated by the tooltips) -- but the corresponding axis labeling shows a value of 37.  The scalebreak is off too (probably matching the wrong axis).
Unplanned
Last Updated: 02 Nov 2017 14:18 by ADMIN
ADMIN
Created by: Hristo
Comments: 0
Category: ChartView
Type: Feature Request
3
The new functionality should allow a display similar to the one in the WPF pie series:
http://docs.telerik.com/devtools/wpf/controls/radchartview/features/labels/smart-labels#using-smart-labels-in-radpiechart
Unplanned
Last Updated: 15 Aug 2017 10:08 by ADMIN
ADMIN
Created by: Dess | Tech Support Engineer, Sr.
Comments: 0
Category: ChartView
Type: Feature Request
0
To reproduce:

AreaSeries areaSeries = new AreaSeries();
areaSeries.DataPoints.Add(new CategoricalDataPoint(13, "Jan"));
areaSeries.DataPoints.Add(new CategoricalDataPoint(20, "Apr"));
areaSeries.DataPoints.Add(new CategoricalDataPoint(15, "Jul"));
areaSeries.DataPoints.Add(new CategoricalDataPoint(16, "Oct"));
this.radChartView1.Series.Add(areaSeries); 

areaSeries.BackColor = Color.Transparent;

areaSeries.CombineMode = ChartSeriesCombineMode.Stack;
AreaSeries areaSeries2 = new AreaSeries();
areaSeries2.DataPoints.Add(new CategoricalDataPoint(15, "Jan"));
areaSeries2.DataPoints.Add(new CategoricalDataPoint(25, "Apr"));
areaSeries2.DataPoints.Add(new CategoricalDataPoint(27, "Jul"));
areaSeries2.DataPoints.Add(new CategoricalDataPoint(18, "Oct"));
this.radChartView1.Series.Add(areaSeries2);
areaSeries2.CombineMode = ChartSeriesCombineMode.Stack;

 The area underneath the transparent one shouldn't be displayed in this case because they are stacked.  There is no area underneath the bottom layer to display. They are each STACKED on top of each other, they should not be layered in front of each other.
Unplanned
Last Updated: 15 Aug 2017 10:08 by ADMIN
Unplanned
Last Updated: 15 Aug 2017 10:02 by ADMIN
ADMIN
Created by: Dimitar
Comments: 0
Category: ChartView
Type: Feature Request
1

					
			
Unplanned
Last Updated: 15 Aug 2017 10:02 by ADMIN
Until the feature gets implemented please use the suggested solution here: http://www.telerik.com/support/kb/winforms/details/integrating-panzoom-trackball-and-lassozoom-controllers-in-radchartview
Unplanned
Last Updated: 15 Aug 2017 10:02 by ADMIN
ADMIN
Created by: Dess | Tech Support Engineer, Sr.
Comments: 0
Category: ChartView
Type: Feature Request
0
There are three ways in which null values can be handled:

1 . Zero. When this option is used, each null value is replaced with a zero. The data entry is not removed from the data collection. Only its original null/empty value is replaced with zero. 
2 . Gap. This option visually removes the regions for each set of empty(null) points. The data entry is not removed from the data collection. Essentially, it connects the points neighboring the null point (or the collection of empty values).
3 . Drop - this option clips, or visually removes each section/segment, corresponding to a set of empty points/values. 
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