Completed
Last Updated: 21 May 2014 12:54 by Jesse Dyck
ADMIN
Created by: Jack
Comments: 1
Category: ChartView
Type: Bug Report
5
Currently RadChartView does not support null values.
Completed
Last Updated: 26 Apr 2013 08:27 by ADMIN
Steps to reproduce:
1. Add a chart to a form.
2. Add any cartesian series
3. Set the LabelFitMode of the horizontal axis to Rotate.

You will see that labels have incorrect layout.
Completed
Last Updated: 07 Dec 2016 08:41 by ADMIN
To reproduce:
- Add at least two series and zoom the chart so the point from one of the series are visible only
- Move the TrackBall
- The Track ball is not shown for some of the points. 
Completed
Last Updated: 20 Oct 2014 12:10 by ADMIN
I'm using version 2012.3.1310.40
I use ChartView to create a pie chart with the following data
Assets          2248550.22
Income             19748.67
Equity           2228253.95
Liability                 547.60

So, when the chart displays, the Percentage is set as follows:
Assets       50%
Income        0%
Equity         50%
Liability        0%

I notice when the percentage is 0% for any data, the pie chart shows "0%" near the chart title (please see attachment).  Or if the calculated data returns 0, it doesn't show any percentage on the chart, but it will shows "NaN" near the title as well. (please see attachment).
Completed
Last Updated: 23 Jan 2015 17:19 by ADMIN
To reproduce:
public Form1()
{
    InitializeComponent();

    ScatterSeries series = new ScatterSeries();
    series.DataPoints.Add(new ScatterDataPoint(5, 5));
    series.DataPoints.Add(new ScatterDataPoint(4, 2));
    series.DataPoints.Add(new ScatterDataPoint(-1, 3));
    series.DataPoints.Add(new ScatterDataPoint(8, 4));

    radChartView1.Series.Add(series);

    LinearAxis horizontalAxis = radChartView1.Axes.Get<LinearAxis>(0);
    horizontalAxis.Minimum = -10;
    horizontalAxis.Maximum = 10;
}
private void radButton1_Click(object sender, EventArgs e)
{
    LinearAxis horizontalAxis = radChartView1.Axes.Get<LinearAxis>(0);
    horizontalAxis.DesiredTickCount = 20;
}

Completed
Last Updated: 07 Nov 2018 14:13 by ADMIN
Note: similar to the axis, the series should also have ClipLabels property which will control whether the labels will be clipped or not.

How to reproduce: zoom and pan along the chart
public Form1()
{
    InitializeComponent();

    this.radChartView1.CreateRenderer += radChartView1_CreateRenderer;
    this.radChartView1.ShowPanZoom = true;

    BarSeries barSeries = new BarSeries();
    Random rand = new Random();
    for (int i = 1; i < 10; i++)
    {
        barSeries.DataPoints.Add(new CategoricalDataPoint(rand.Next(100), i));
    }

    barSeries.ShowLabels = true;
    this.radChartView1.Series.Add(barSeries);
}

Workaround:
 public partial class Form1 : Form
 {
     public Form1()
     {
         InitializeComponent();

         this.radChartView1.CreateRenderer += radChartView1_CreateRenderer;
         this.radChartView1.ShowPanZoom = true;

         BarSeries barSeries = new BarSeries();
         Random rand = new Random();
         for (int i = 1; i < 10; i++)
         {
             barSeries.DataPoints.Add(new CategoricalDataPoint(rand.Next(100), i));
         }

         barSeries.ShowLabels = true;
         this.radChartView1.Series.Add(barSeries);
     }

     private void radChartView1_CreateRenderer(object sender, ChartViewCreateRendererEventArgs e)
     {
         e.Renderer = new CustomCartesianRenderer(e.Area as CartesianArea);
     }
 }

 public class CustomCartesianRenderer : CartesianRenderer
 {
     public CustomCartesianRenderer(CartesianArea area)
         : base(area)
     { }
     protected override void Initialize()
     {
         base.Initialize();

         for (int i = 0; i < this.DrawParts.Count; i++)
         {
             BarLabelElementDrawPart labelPart = this.DrawParts[i] as BarLabelElementDrawPart;
             if (labelPart != null)
             {
                 this.DrawParts[i] = new CustomLabelElementDrawPart((BarSeries)labelPart.Element, this);
             }
         }
     }
 }

 public class CustomLabelElementDrawPart : BarLabelElementDrawPart
 {
     public CustomLabelElementDrawPart(ChartSeries owner, IChartRenderer renderer)
         : base(owner, renderer)
     { }
     
     public override void Draw()
     {
         Graphics graphics = this.Renderer.Surface as Graphics;
         CartesianSeries cartesianSeries = this.Element as CartesianSeries;
         if (cartesianSeries != null)
         {
             CartesianArea area = (CartesianArea)cartesianSeries.GetType().GetField("area", BindingFlags.Instance | BindingFlags.NonPublic).GetValue(cartesianSeries);
             RectangleF clipRect = (RectangleF)area.GetType().GetMethod("GetCartesianClipRect", BindingFlags.Instance | BindingFlags.NonPublic).Invoke(area, new object[] { });//.GetCartesianClipRect();
             graphics.SetClip(clipRect);
         }

         base.Draw();

         graphics.ResetClip();
     }
 }
Completed
Last Updated: 17 Mar 2015 16:27 by ADMIN
Workaround:

public class CustomLassoZoomController : LassoZoomController
{
    protected override ActionResult OnMouseUp(MouseEventArgs e)
    {
        if (this.MouseDownLocation == Point.Empty || this.MouseMoveLocation == Point.Empty)
        {
            return Controller.Empty;
        }

        return base.OnMouseUp(e);
    }
}

public Form1()
{
    InitializeComponent();

    BarSeries barSeries = new BarSeries("Performance", "RepresentativeName");
    barSeries.Name = "Q1";
    barSeries.DataPoints.Add(new CategoricalDataPoint(177, "Harley"));
    barSeries.DataPoints.Add(new CategoricalDataPoint(128, "White"));
    barSeries.DataPoints.Add(new CategoricalDataPoint(143, "Smith"));
    barSeries.DataPoints.Add(new CategoricalDataPoint(111, "Jones"));
    barSeries.DataPoints.Add(new CategoricalDataPoint(118, "Marshall")); 
    this.radChartView1.Series.Add(barSeries);

    BarSeries barSeries2 = new BarSeries("Performance", "RepresentativeName");
    barSeries2.Name = "Q2";
    barSeries2.DataPoints.Add(new CategoricalDataPoint(153, "Harley"));
    barSeries2.DataPoints.Add(new CategoricalDataPoint(141, "White"));
    barSeries2.DataPoints.Add(new CategoricalDataPoint(130, "Smith"));
    barSeries2.DataPoints.Add(new CategoricalDataPoint(88, "Jones"));
    barSeries2.DataPoints.Add(new CategoricalDataPoint(109, "Marshall"));
    this.radChartView1.Series.Add(barSeries2);

    CustomLassoZoomController lassoZoomController = new CustomLassoZoomController();
    radChartView1.Controllers.Add(lassoZoomController);
}
Completed
Last Updated: 12 Feb 2015 13:36 by ADMIN
Steps to reproduce:
1. Add chart to a form.
2. Add two bar series with CombineMode set to Stack100
3. Add two data points to the series with values 0.0 and identical category
4. Run the project an you will see an exception.
Completed
Last Updated: 26 Jun 2018 06:55 by Dimitar
ADMIN
Created by: Dess | Tech Support Engineer, Sr.
Comments: 0
Category: ChartView
Type: Bug Report
2
To reproduce: please refer to the attached sample project and gif file.

Workaround: 
            CustomLassoSelectionController lassoSelectionController = new CustomLassoSelectionController(); 
            this.radChartView1.Controllers.Add(lassoSelectionController);

        public class CustomLassoSelectionController : LassoSelectionController
        {
            private IList<DataPoint> selectedPoints = null;

            public CustomLassoSelectionController()
            {
                this.selectedPoints = new List<DataPoint>();
            }

            private Point ClipLocation(Point point)
            {
                CartesianArea area = this.Area.View.GetArea<CartesianArea>();
                if (area != null)
                {
                    RectangleF clipRect = GetCartesianClipRect(area);

                    if (point.X < clipRect.X)
                    {
                        point = new Point((int)clipRect.X, point.Y);
                    }

                    if (point.X > clipRect.Width + clipRect.X)
                    {
                        point = new Point((int)clipRect.Width + (int)clipRect.X, point.Y);
                    }

                    if (point.Y < clipRect.Y)
                    {
                        point = new Point(point.X, (int)clipRect.Y);
                    }

                    if (point.Y > clipRect.Height + clipRect.Y)
                    {
                        point = new Point(point.X, (int)clipRect.Height + (int)clipRect.Y);
                    }
                }

                return point;
            }

            internal RectangleF GetCartesianClipRect(CartesianArea area)
            {
                float x1, x2, y1, y2;
                x1 = 0;
                y1 = 0;
                x2 = (float)area.View.Viewport.Right;
                y2 = (float)area.View.Viewport.Bottom;

                foreach (var axis in area.View.Axes)
                {
                    if (axis.AxisType == AxisType.First)
                    {
                        if (axis.Model.VerticalLocation == AxisVerticalLocation.Bottom)
                        {
                            y2 = Math.Min(y2, (float)axis.Model.LayoutSlot.Y);
                        }
                        else
                        {
                            y1 = Math.Max(y1, (float)axis.Model.LayoutSlot.Bottom);
                        }

                        x1 = Math.Min(x1, (float)axis.Model.LayoutSlot.X);
                        x2 = Math.Min(x2, (float)axis.Model.LayoutSlot.Right);
                    }
                    else
                    {
                        if (axis.Model.HorizontalLocation == AxisHorizontalLocation.Left)
                        {
                            x1 = Math.Max(x1, (float)axis.Model.LayoutSlot.Right);
                        }
                        else
                        {
                            x2 = Math.Min(x2, (float)axis.Model.LayoutSlot.X);
                        }

                        y1 = Math.Max(y1, (float)axis.Model.LayoutSlot.Y);
                        y2 = Math.Min(y2, (float)axis.Model.LayoutSlot.Bottom);
                    }
                }

                RectangleF result = new RectangleF((float)area.View.Viewport.X + x1, (float)area.View.Viewport.Y + y1, x2 - x1 + 1, y2 - y1 + 1);

                return result;
            }

            protected override ActionResult OnMouseUp(MouseEventArgs e)
            {
                if (e.Button != MouseButtons.Left || this.MouseDownLocation == Point.Empty || this.MouseMoveLocation == Point.Empty)
                {
                    return base.OnMouseUp(e);
                }

                if (MouseDownLocation != MouseMoveLocation)
                {
                    this.MouseMoveLocation = ClipLocation(e.Location);
                    CartesianArea area = this.Area.View.GetArea<CartesianArea>();

                    if (area != null)
                    {
                        this.selectedPoints.Clear();
                        RectangleF areaRect = RectangleF.Empty;
                        IChartView chartView = this.Area.View;
                        areaRect = GetCartesianClipRect(area);

                        Point topLeft = new Point(Math.Min(MouseDownLocation.X, e.X), Math.Min(MouseDownLocation.Y, e.Y));
                        Point lowerRight = new Point(Math.Max(MouseDownLocation.X, e.X), Math.Max(MouseDownLocation.Y, e.Y));
                        RectangleF lassoRect = new RectangleF(new PointF(topLeft.X - (float)chartView.PlotOriginX - area.View.Margin.Left, topLeft.Y - (float)chartView.PlotOriginY - area.View.Margin.Top), new SizeF(lowerRight.X - topLeft.X, lowerRight.Y - topLeft.Y));

                        foreach (var series in area.View.Series)
                        {
                            foreach (var dataPoint in series.DataPoints)
                            {
                                if (lassoRect.Contains(new PointF((float)dataPoint.LayoutSlot.Location.X, (float)dataPoint.LayoutSlot.Location.Y)))
                                {
                                    dataPoint.IsSelected = true;
                                    this.selectedPoints.Add(dataPoint);
                                }
                                else
                                {
                                    dataPoint.IsSelected = false;
                                }
                            }
                        }
                        
                        ChartDataPointsEventArgs changedArgs = new ChartDataPointsEventArgs(this.selectedPoints);
                        this.OnLassoSelectedPointsChanged(changedArgs);
                    }

                    MouseDownLocation = MouseMoveLocation = Point.Empty;
                }

                this.Result.ShouldInvalidate = true;
                return this.Result;
            }
        }
Completed
Last Updated: 25 May 2017 13:24 by ADMIN
How to reproduce: explicitly set the border color of the series

Workaround:
public partial class Form1 : Form
{
    private RangeSelectorViewElement chartElement;

    public Form1()
    {
        InitializeComponent();

        LineSeries lineSeries = new LineSeries();
        lineSeries.Name = "Line";
        lineSeries.BorderColor = Color.Green;
        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);

        this.chartElement = this.radRangeSelector1.RangeSelectorElement.AssociatedElement as RangeSelectorViewElement;
        this.chartElement.SeriesInitialized += ChartElement_SeriesInitialized;
    }

    private void ChartElement_SeriesInitialized(object sender, SeriesInitializedEventArgs e)
    {
        if (e.Series.Name == "Line")
        {
            e.Series.BorderColor = this.radChartView1.Series.Where(s => s.Name == "Line").First().BorderColor;
        }
    }
}
Completed
Last Updated: 09 Nov 2016 08:18 by ADMIN
How to reproduce:
Dim table As New DataTable()
table.Columns.Add("Name", GetType(String))
table.Columns.Add("X", GetType(Integer))
 
For i As Integer = 0 To 99
    table.Rows.Add($"User {i}", i)
Next
 
Dim series As New BarSeries()
series.DataSource = table
series.CategoryMember = "Name"
series.ValueMember = "X"
 
RadChartView1.Series.Add(series)
 
CType(RadChartView1.Area, CartesianArea).Orientation = Orientation.Horizontal
         
Dim panZoomController As New ChartPanZoomController()
panZoomController.PanZoomMode = ChartPanZoomMode.Vertical
RadChartView1.Controllers.Add(panZoomController)
 
RadChartView1.Zoom(1, 8)

Workaround: create a custom ChartPanZoomController
Dim panZoomController As New MyChartPanZoomController()
panZoomController.PanZoomMode = ChartPanZoomMode.Vertical
RadChartView1.Controllers.Add(panZoomController)

Public Class MyChartPanZoomController
    Inherits ChartPanZoomController

    Protected Overrides Function OnMouseMove(e As MouseEventArgs) As ActionResult

        Dim cartesianArea As CartesianArea = TryCast(Me.Area, CartesianArea)
        If cartesianArea Is Nothing Then
            Return MyBase.OnMouseMove(e)
        End If

        Dim panPoint As Point? = Me.GetType().BaseType.GetField("panPoint", BindingFlags.Instance Or BindingFlags.NonPublic).GetValue(Me)

        If e.Button = MouseButtons.Left AndAlso panPoint.HasValue Then
            Dim offsetX As Double = Me.GetType().BaseType.GetField("offsetX", BindingFlags.Instance Or BindingFlags.NonPublic).GetValue(Me)

            Dim currentOffsetX As Double = offsetX
            Dim defaultAxis As Axis = If(cartesianArea.Orientation = Orientation.Horizontal,
                                         Me.Area.GetType().GetMethod("GetDefaultFirstAxis", BindingFlags.Instance Or BindingFlags.NonPublic).Invoke(Me.Area, New Object() {}),
                                         Me.Area.GetType().GetMethod("GetDefaultSecondAxis", BindingFlags.Instance Or BindingFlags.NonPublic).Invoke(Me.Area, New Object() {}))

            If Me.PanZoomMode = ChartPanZoomMode.Horizontal OrElse Me.PanZoomMode = ChartPanZoomMode.Both Then
                currentOffsetX += (panPoint.Value.X - e.Location.X) * -1

                If currentOffsetX > 0 Then
                    currentOffsetX = 0
                End If

                If currentOffsetX < defaultAxis.Model.LayoutSlot.Width * (DirectCast(cartesianArea.View, IChartView).ZoomWidth - 1) Then
                    currentOffsetX = -defaultAxis.Model.LayoutSlot.Width * (DirectCast(cartesianArea.View, IChartView).ZoomWidth - 1)
                End If
            End If

            Dim offsetY As Double = Me.GetType().BaseType.GetField("offsetY", BindingFlags.Instance Or BindingFlags.NonPublic).GetValue(Me)
            Dim currentOffsetY As Double = offsetY
            If Me.PanZoomMode = ChartPanZoomMode.Vertical OrElse Me.PanZoomMode = ChartPanZoomMode.Both Then
                currentOffsetY += (panPoint.Value.Y - e.Location.Y) * -1

                If currentOffsetY > 0 Then
                    currentOffsetY = 0
                End If

                If currentOffsetY < -defaultAxis.Model.LayoutSlot.Height * (DirectCast(cartesianArea.View, IChartView).ZoomHeight - 1) Then
                    currentOffsetY = -defaultAxis.Model.LayoutSlot.Height * (DirectCast(cartesianArea.View, IChartView).ZoomHeight - 1)
                End If
            End If

            cartesianArea.View.Pan(currentOffsetX, currentOffsetY)
        End If

        Return Controller.Empty

    End Function

End Class
Completed
Last Updated: 03 Jan 2017 12:58 by ADMIN
To reproduce:

private void RadChartView1_LabelFormatting(object sender, ChartViewLabelFormattingEventArgs e)
{
    var dataPoint = e.LabelElement.DataPoint as CategoricalDataPoint;
    if (dataPoint != null)
    {
         e.LabelElement.IsVisible = false;
    }
}

Workaround:
private void RadChartView1_LabelFormatting(object sender, ChartViewLabelFormattingEventArgs e)
{
    var dataPoint = e.LabelElement.DataPoint as CategoricalDataPoint;
    if (dataPoint != null)
    {
        e.LabelElement.Text = "";
    
    }
}


Completed
Last Updated: 23 Nov 2018 11:34 by Dimitar
To reproduce:
            WaterfallSeries series = new WaterfallSeries();
            series.ShowLabels = true;

            series.DataPoints.Add(new WaterfallDataPoint(50000, false, false, "Beginning\nBalance"));
            series.DataPoints.Add(new WaterfallDataPoint(17000, false, false, "Jan"));
            series.DataPoints.Add(new WaterfallDataPoint(14000, false, false, "Feb"));
            series.DataPoints.Add(new WaterfallDataPoint(-12000, false, false, "Mar"));
            series.DataPoints.Add(new WaterfallDataPoint(69000, true, false, "Q1"));
            series.DataPoints.Add(new WaterfallDataPoint(-22000, false, false, "Apr"));
            series.DataPoints.Add(new WaterfallDataPoint(-18000, false, false, "May"));
            series.DataPoints.Add(new WaterfallDataPoint(500, false, false, "Jun"));
            series.DataPoints.Add(new WaterfallDataPoint(-30000, true, false, "Q2"));
            series.DataPoints.Add(new WaterfallDataPoint(39000, false, true, "Ending\nBalance"));
            this.radChartView1.Series.Add(series);

            CartesianGridLineAnnotation annotation1 = new CartesianGridLineAnnotation();
            annotation1.Label = "Annotation";
            annotation1.ForeColor = Color.Lime;
            annotation1.BackColor = Color.Black;
            this.radChartView1.Annotations.Add(annotation1);

Workaround:

        public RadForm1()
        {
            InitializeComponent();
            this.radChartView1.CreateRenderer += radChartView1_CreateRenderer;

            WaterfallSeries series = new WaterfallSeries();
            series.ShowLabels = true;
     
            series.DataPoints.Add(new WaterfallDataPoint(50000, false, false, "Beginning\nBalance"));
            series.DataPoints.Add(new WaterfallDataPoint(17000, false, false, "Jan"));
            series.DataPoints.Add(new WaterfallDataPoint(14000, false, false, "Feb"));
            series.DataPoints.Add(new WaterfallDataPoint(-12000, false, false, "Mar"));
            series.DataPoints.Add(new WaterfallDataPoint(69000, true, false, "Q1"));
            series.DataPoints.Add(new WaterfallDataPoint(-22000, false, false, "Apr"));
            series.DataPoints.Add(new WaterfallDataPoint(-18000, false, false, "May"));
            series.DataPoints.Add(new WaterfallDataPoint(500, false, false, "Jun"));
            series.DataPoints.Add(new WaterfallDataPoint(-30000, true, false, "Q2"));
            series.DataPoints.Add(new WaterfallDataPoint(39000, false, true, "Ending\nBalance"));
            this.radChartView1.Series.Add(series);
 
            CartesianGridLineAnnotation annotation1 = new CartesianGridLineAnnotation();
            annotation1.Label = "Annotation";
            annotation1.ForeColor = Color.Lime;
            annotation1.BackColor = Color.Black;
            annotation1.PositonOffset = new SizeF(0, -20);
            annotation1.Axis = this.radChartView1.Axes[1] as CartesianAxis;
            annotation1.Value = 70000;
            annotation1.BorderColor = Color.Red;
            annotation1.BorderDashStyle = DashStyle.Solid;
            annotation1.BorderWidth = 1;
            this.radChartView1.Annotations.Add(annotation1);
        }

        private void radChartView1_CreateRenderer(object sender, ChartViewCreateRendererEventArgs e)
        {
            e.Renderer = new CustomCartesianRenderer(e.Area as CartesianArea);
        }
 
        public class CustomCartesianRenderer : CartesianRenderer
        {
            public CustomCartesianRenderer(CartesianArea area) : base(area)
            {
            }
 
            protected override void Initialize()
            {
                base.Initialize();
                for (int i = 0; i <= this.DrawParts.Count - 1; i++)
                {
                    CartesianGridLineAnnotationDrawPart annotationPart = this.DrawParts[i] as CartesianGridLineAnnotationDrawPart;
                    if (annotationPart != null)
                    {
                        this.DrawParts[i] = new CustomCartesianGridLineAnnotationDrawPart((CartesianGridLineAnnotation)annotationPart.Element, this);
                    }
                }
            }
        }

        public class CustomCartesianGridLineAnnotationDrawPart : CartesianGridLineAnnotationDrawPart
        {
            public CustomCartesianGridLineAnnotationDrawPart(CartesianGridLineAnnotation element, CartesianRenderer renderer) : base(element, renderer)
            {
            }

            public override void Draw()
            {
                FieldInfo fi = typeof(CartesianGridLineAnnotation).GetField("model", BindingFlags.NonPublic | BindingFlags.Instance);
                ChartAnnotationModel model = fi.GetValue(this.Element) as ChartAnnotationModel;
                RectangleF
                rect = ChartRenderer.ToRectangleF(model.LayoutSlot);
                rect.Offset(this.ViewportOffsetX, this.ViewportOffsetY);

                Graphics graphics = this.Renderer.Surface as Graphics;
                RadGdiGraphics radGraphics = new RadGdiGraphics(graphics);

                Rectangle clipRect = ChartRenderer.ToRectangle(this.Element.View.GetArea<CartesianArea>().AreaModel.PlotArea.LayoutSlot);
                clipRect.Offset((int)this.ViewportOffsetX, (int)this.ViewportOffsetY);
                graphics.SetClip(clipRect);

                GraphicsPath path = new GraphicsPath();
                path.AddLine(rect.Location, new PointF(rect.Right, rect.Bottom));

                BorderPrimitiveImpl border = new BorderPrimitiveImpl(this.Element, null);
                border.PaintBorder(radGraphics, null, path, rect);

                rect.Size = graphics.MeasureString(this.Element.Label, this.Element.Font);
                rect.Offset(this.Element.PositonOffset.Width + 1, this.Element.PositonOffset.Height + 1);

                TextParams tp = new TextParams();
                tp.font = this.Element.Font;
                tp.foreColor = this.Element.ForeColor;
                tp.paintingRectangle = rect;
                tp.text = this.Element.Label;

                FillPrimitiveImpl fill = new FillPrimitiveImpl(this.Element, null);
                fill.PaintFill(radGraphics, null, rect);
            
                TextPrimitiveHtmlImpl text = new TextPrimitiveHtmlImpl();
                text.PaintPrimitive(radGraphics, 0f, new SizeF(1f, 1f), tp);
            }
        }
Completed
Last Updated: 12 Jun 2014 11:35 by Chris Ward
To reproduce:

Have a RadButton and a RadChartView on a form. On button click use the following code:
private void GenerateSeries()
{
    LineSeries lineSeries = new LineSeries();
    lineSeries.DataPoints.Add(new CategoricalDataPoint(20, "Jan") { Label = "January" });
    lineSeries.DataPoints.Add(new CategoricalDataPoint(22, "Apr"));
    lineSeries.DataPoints.Add(new CategoricalDataPoint(12, "Jul"));
    lineSeries.DataPoints.Add(new CategoricalDataPoint(19, "Oct"));
    lineSeries.LegendTitle = "Line 1 ";
    this.Chart.Series.Add(lineSeries);
    lineSeries.BackColor = Color.Black;
    lineSeries.PointSize = new SizeF(15, 15);

    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"));

    lineSeries2.LegendTitle = "Line 2 ";
    this.Chart.Series.Add(lineSeries2);
}

void RadButton_Click(object sender, EventArgs e)
{
    this.Chart.Series.Clear();
    this.GenerateSeries();
}


You will notice that the memory will not decrease after a few presses of the button.

Workaround:

Set the Provider of the LegendElement to null:

private void GenerateSeries()
{
    this.Chart.ChartElement.LegendElement.Provider = null;


    LineSeries lineSeries = new LineSeries();
    lineSeries.DataPoints.Add(new CategoricalDataPoint(20, "Jan") { Label = "January" });
    lineSeries.DataPoints.Add(new CategoricalDataPoint(22, "Apr"));
    lineSeries.DataPoints.Add(new CategoricalDataPoint(12, "Jul"));
    lineSeries.DataPoints.Add(new CategoricalDataPoint(19, "Oct"));
    lineSeries.LegendTitle = "Line 1 ";
    this.Chart.Series.Add(lineSeries);
    lineSeries.BackColor = Color.Black;
    lineSeries.PointSize = new SizeF(15, 15);

    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"));

    lineSeries2.LegendTitle = "Line 2 ";
    this.Chart.Series.Add(lineSeries2);
}

void Button_Click(object sender, EventArgs e)
{
    this.Chart.Series.Clear();
    this.GenerateSeries();
}
Completed
Last Updated: 21 Mar 2016 09:12 by ADMIN
When trying to drill down PieChart on RadChartView the code throws exception.

Workaround: private void radChartView_Drill(object sender, DrillEventArgs e){    e.View.Parent = this.radChartViewUsers.ChartElement.Wrapper;    e.View.AreaType = ChartAreaType.Pie;    //do drill logic}
Completed
Last Updated: 18 Apr 2013 11:17 by ADMIN
Steps to reproduce:
1. Create an instance of any chart series
2. Set the Palette property to a new/existing PaletteEntry instance with any colors 

Run the project and you will see an exception.
Completed
Last Updated: 27 Feb 2014 12:48 by ADMIN
ADMIN
Created by: Georgi I. Georgiev
Comments: 0
Category: ChartView
Type: Bug Report
2
To reproduce:
Add Series and Axes to a RadChartView and a ChartPanZoomController. Zoom and pan a little, then clear all the series and axes and add new ones. Try to pan now.
Completed
Last Updated: 23 Oct 2013 05:02 by ADMIN
ADMIN
Created by: Georgi I. Georgiev
Comments: 0
Category: ChartView
Type: Bug Report
1
To reproduce:
Add a RadChartView and add some LineSeries and data points. Set the ShowTrackBall property to true. In some cases KeyNotFound exception occurs.

Workaround:
Use the following class:
public class MyController : ChartTrackballController
{
    protected override string GetTrackballText(List<DataPointInfo> points)
    {
        StringBuilder result = new StringBuilder("<html>");

        SortedDictionary<ChartSeries, List<DataPoint>> visiblePoints = new SortedDictionary<ChartSeries, List<DataPoint>>(new ChartSeriesComparer());

        foreach (DataPointInfo pointInfo in points)
        {
            if (visiblePoints.ContainsKey(pointInfo.Series))
            {
                visiblePoints[pointInfo.Series].Add(pointInfo.DataPoint);
            }
            else
            {
                visiblePoints.Add(pointInfo.Series, new List<DataPoint>() { pointInfo.DataPoint });
            }
        }

        int counter = 0;
        foreach (ChartSeries series in visiblePoints.Keys)
        {
            for (int i = 0; i < visiblePoints[series].Count; i++)
            {
                Color pointColor = this.GetColorForDataPoint(series, visiblePoints[series][i]);
                string color = string.Format("{0},{1},{2},{3}", pointColor.A, pointColor.R, pointColor.G, pointColor.B);
                result.AppendFormat("<color={0}>{1}", color, this.GetPointText(visiblePoints[series][i]));

                if (i < visiblePoints[series].Count)
                {
                    result.Append(" ");
                }
            }

            counter++;

            if (counter < visiblePoints.Keys.Count)
            {
                result.Append("\n");
            }
        }

        result.Append("</html>");

        return result.ToString();
    }

    class ChartSeriesComparer : IComparer<ChartSeries>
    {
        public ChartSeriesComparer()
        {
        }

        public int Compare(ChartSeries x, ChartSeries y)
        {
            if (!(x is IndicatorBase) && y is IndicatorBase)
            {
                return -1;
            }
            else if (x is IndicatorBase && !(y is IndicatorBase))
            {
                return 1;
            }

            return x.GetHashCode().CompareTo(y.GetHashCode());
        }
    }
}

Replace the old controller as follows:
for (int i = 0; i < this.radChartView1.Controllers.Count; i++)
{
    if (this.radChartView1.Controllers[i] is ChartTrackballController)
    {
        this.radChartView1.Controllers[i] = new MyController();
        break;
    }
}

Note that the controller must be replaced before any data is added to the chart
Completed
Last Updated: 28 Jan 2015 13:33 by ADMIN
Create a chart with a LinesSeries with a DateTimeContinuousAxis axis and set the following properties:
DateTimeContinuousAxis horizontalAxis = new DateTimeContinuousAxis();
horizontalAxis.Title = tupleItem.HorizontalAxis;
horizontalAxis.AxisType = AxisType.First;
horizontalAxis.VerticalLocation = AxisVerticalLocation.Bottom;
horizontalAxis.AutomaticBorderColor = false;
horizontalAxis.MaximumTicks = 10;
horizontalAxis.LabelFormat = "{0:HH:mm:ss.fff}";

You will see that there are less labels than ticks.

When the chart is zoomed the labels also disappear from the ticks.
Completed
Last Updated: 29 Jan 2013 01:17 by ADMIN
Steps to reproduce:
1. Set up a pie chart with several segments
2. Set ShowTrackBall property to true
3. Run the project and hover a segment An ArgumentOutOfRange exception will be thrown.
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