Introduce gantt like series as in RadChart: http://docs.telerik.com/devtools/winforms/chart/understanding-radchart-types/gantt-charts 

How can I achieve the same behaviour as with the obsolete RadChart plotting the area between the maxima of a sine. 

I have use following code to use Both Scrollbar in RadChartView While Zoom.
but it not scroll my chart .

radchart1.HorizontalScroll.Enabled = true;
radchart1.HorizontalScroll.Visible = true;
radchart1.VerticalScroll.Enabled = true;
radchart1.VerticalScroll.Visible = true;
Please help me.

Hello Kalpesh,

Currently panning in RadChartView cannot be performed using the scrollbars. We have a feature request logged here: https://feedback.telerik.com/Project/154/Feedback/Details/111013-add-radchartview-add-a-scrollbar-that-controls-the-pan-and-zoom

Please subscribe to the item so that you be updated when its status changes. For the time being I can suggest using a RadRangeSelector control to zoom and pan the chart. More information is available here: https://docs.telerik.com/devtools/winforms/rangeselector/overview

Regards,
Hristo

https://demos.telerik.com/kendo-ui/radar-charts/radar-column

The attached proejct shows a sample implementation.

Workaround:
public class MyRadChartView : RadChartView
{
    public override string ThemeClassName
    {
        get
        {
            return typeof(RadChartView).FullName;
        }
    }

    protected override void Dispose(bool disposing)
    {
        base.Dispose(false);
    }
}

How to reproduce: check the attached project

Workaround: 
private void button1_Click(object sender, EventArgs e)
{
    this.radChartView1.DataSource = null;
    foreach (ChartSeries series in this.radChartView1.Series)
    {
        series.DataSource = null;
    }

    this.radChartView1.Series.Clear();
}

Use attached to reproduce. 
If you add 163 points the axis will start from 3. There should be an option to start from 0.

Use attached to reproduce.

Workaround:
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++)
        {
            LineSeriesDrawPart linePart = this.DrawParts[i] as LineSeriesDrawPart;
            if (linePart != null)
            {
                this.DrawParts[i] = new CustomLineSeriesDrawPart((LineSeries)linePart.Element, this);
            }
        }
    }

    
}
public class CustomLineSeriesDrawPart : LineSeriesDrawPart
{
    public CustomLineSeriesDrawPart(LineSeriesBase series, IChartRenderer renderer) : base(series, renderer)
    {
    }

    protected override PointF[] GetPointsPositionsArray()
    {
        List<DataPoint> points = new List<DataPoint>(this.Element.DataPoints);

        PointF[] result = new PointF[points.Count];

        for (int i = 0; i < points.Count; i++)
        {
            result[i] = new PointF(this.OffsetX + (float)points[i].LayoutSlot.X, this.OffsetY + (float)points[i].LayoutSlot.Y);
        }

        return result;
    }

}

To reproduce:
- Add a polar chart with a selection controller.
- Click near the bottom right corner of the point (10 pixels away)
- The point is selected.

Workaround:
private void Chart_CreateRenderer(object sender, ChartViewCreateRendererEventArgs e)
{
    e.Renderer = new MyPolarRenderer(e.Area as PolarArea);
}


class MyPolarRenderer : PolarRenderer
{
    public MyPolarRenderer(PolarArea area) : base(area)
    { }

    protected override void Initialize()
    {
        base.Initialize();
        for (int i = 0; i < this.DrawParts.Count; i++)
        {
            PolarPointSeriesDrawPart linePart = this.DrawParts[i] as PolarPointSeriesDrawPart;
            if (linePart != null)
            {
                this.DrawParts[i] = new MyDrawpart((PolarPointSeries)linePart.Element, this);
            }
        }
    }


}
class MyDrawpart : PolarPointSeriesDrawPart
{
    public MyDrawpart(PolarPointSeries series, IChartRenderer renderer) : base(series, renderer)
    { }
    public override DataPoint HitTest(Point location)
    {
        if (this.Element.PointSize.Width == 0 || this.Element.PointSize.Height == 0)
        {
            return null;
        }

        for (int i = 0; i < this.Element.DataPoints.Count; i++)
        {
            RadRect slot = this.Element.DataPoints[i].LayoutSlot;
            float pointHalfWidth = this.Element.PointSize.Width / 2;
            float pointHalfHeight = this.Element.PointSize.Height / 2;

            RectangleF dataPointBounds = new RectangleF((float)(slot.X - pointHalfWidth), (float)(slot.Y - pointHalfHeight), this.Element.PointSize.Width, this.Element.PointSize.Height);

            if (dataPointBounds.Contains(location.X, location.Y))
            {
                return this.Element.DataPoints[i];
            }
        }

        return null;
    }
}

To reproduce:
- The total amount should go bellow 0 with the last point:

var ws = new WaterfallSeries();
ws.ShowLabels = true;
ws.DataPoints.Add(new Telerik.Charting.WaterfallDataPoint(10.0, false, false));
ws.DataPoints.Add(new Telerik.Charting.WaterfallDataPoint(2.0, false, false));
ws.DataPoints.Add(new Telerik.Charting.WaterfallDataPoint(3.0, false, false));

ws.DataPoints.Add(new Telerik.Charting.WaterfallDataPoint(-20.0, false, false));

radChartView1.Series.Add(ws);

Workaround:
Set the minimum:
var verticalAxis = radChartView1.Axes[1] as LinearAxis;
verticalAxis.Minimum = -10;

How to reproduce:
Check the attached project

Workaround:
Create a separate custom MACD indicator and add it to the chart, uncomment the commented code in the attached project

Friend Class MacdCustomIndicator
    Inherits MacdIndicator

    Private customBorderColor As Color
    Public Property BorderColor() As Color
        Get
            Return customBorderColor
        End Get
        Set(ByVal value As Color)
            customBorderColor = value
            Me.ChildIndicator.BorderColor = value
        End Set
    End Property

    Sub New()
        Dim customMacdInnerIndicator = New CustomMacdInnerIndicator(Me)
        Me.GetType().BaseType.GetField("childIndicator", BindingFlags.Instance Or BindingFlags.NonPublic).SetValue(Me, customMacdInnerIndicator)
    End Sub

End Class

Friend Class CustomMacdInnerIndicator
    Inherits MacdInnerIndicator
    Public Sub New(owner As MacdIndicator)
        MyBase.New(owner)
    End Sub

    Public Overrides Function GetProcessedValue(currentIndex As Integer) As Double

        Dim macd As Double = Me.CalculateMacdValue(currentIndex, LongPeriod, ShortPeriod)
        Me.Cache(macdValues).Add(currentIndex, macd)
        Return macd
    End Function
End Class

How to reproduce: the issue can be observed when opening a form with a RadChartView which is not visible located in RadScrollablePanel. The panel will scroll to the chart which is not desired

Workaround: 
public partial class RadForm1 : Telerik.WinControls.UI.RadForm
{
    public RadForm1()
    {
        InitializeComponent();

        this.radScrollablePanel1.AllowAutomaticScrollToControl = false;
    }

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

        this.radScrollablePanel1.HorizontalScrollbar.Value = 0;;
    }
}

Use attached to reproduce (comment the custom strategy).

Workaround: in the attched project. 
  

How to reproduce:
private void UpdateChart()
{
    this.radChartView1.Series.Clear();

    // Create two series for the bar chart.
    BarSeries requiredBarSeries = new BarSeries
    {
        ShowLabels = true,
        CombineMode = ChartSeriesCombineMode.Cluster,
        NumberOfColors = 2,
    };

    BarSeries actualBarSeries = new BarSeries
    {
        ShowLabels = true,
        CombineMode = ChartSeriesCombineMode.Cluster,
        NumberOfColors = 2,
    };
    
    // Add the data. 
    AddDataPoint(requiredBarSeries, .0333d, "Germany", "Required");
    AddDataPoint(actualBarSeries, .050d, "Germany", "Actual");
    AddDataPoint(requiredBarSeries, .0333d, "United States", "Required");
    AddDataPoint(actualBarSeries, .050d, "United States", "Actual");
    AddDataPoint(requiredBarSeries, .00d, "France", "Required");
    AddDataPoint(actualBarSeries, .050d, "France", "Actual");

    AddDataPoint(requiredBarSeries, 0.0d, "United Kingdom", "Required");
    AddDataPoint(actualBarSeries, .050d, "United Kingdom", "Actual");


    AddDataPoint(requiredBarSeries, 0.955d, "Russia", "Required");
    // Change the following value to .95d to see 
    // the issue.
    AddDataPoint(actualBarSeries, .15d, "Russia", "Actual");

    this.radChartView1.Series.Add(requiredBarSeries);
    this.radChartView1.Series.Add(actualBarSeries);

    CategoricalAxis horizontalAxis = radChartView1.Axes[0] as CategoricalAxis;
    horizontalAxis.LabelFitMode = AxisLabelFitMode.MultiLine;
}

private void AddDataPoint(BarSeries series, double val, string category, string label)
{
    series.DataPoints.Add(new CategoricalDataPoint
    {
        Value       = val,
        Label       = String.Format("{0}\n{1:P2}", label, val),
        Category    = category
    });
}

Workaround: create a custom SmartLabelsController
public RadForm1()
        {
            InitializeComponent();


            SmartLabelsController labelsController = new CustomSmartLabelsController();
            this.radChartView1.Controllers.Add(labelsController);
     
            // Set up the chart
        }

public class CustomSmartLabelsController : SmartLabelsController
    {
        protected override SmartLabelsStrategyBase GetDefaultStrategy(ChartArea area)
        {
            SmartLabelsStrategyBase strategy = base.GetDefaultStrategy(area);

            if (strategy is VerticalAdjusmentLabelsStrategy)
            {
                strategy = new CustomVerticalAdjusmentLabelsStrategy();
                Dictionary<Type, List<Type>> strategies = typeof(SmartLabelsController).GetField("strategySeries", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic).GetValue(this) as Dictionary<Type, List<Type>>;
                strategies.Remove(typeof(VerticalAdjusmentLabelsStrategy));
                strategies.Add(typeof(CustomVerticalAdjusmentLabelsStrategy), new List<Type> { typeof(BarSeries), typeof(LineSeriesBase) });
            }

            return strategy;
        }
    }

    public class CustomVerticalAdjusmentLabelsStrategy : VerticalAdjusmentLabelsStrategy
    {
        public override void CalculateLocations(ChartSeriesCollection series, Rectangle plotArea)
        {
            if (series.Count == 0)
            {
                return;
            }

            List<LabelElement> labels = new List<LabelElement>();
            List<int> overlaps = new List<int>();

            foreach (ChartSeries chartSeries in series)
            {
                if (!chartSeries.ShowLabels || !chartSeries.IsVisible)
                {
                    continue;
                }

                foreach (DataPointElement point in chartSeries.Children)
                {
                    LabelElement label = (LabelElement)point.Children[0];
                    Rectangle labelRect = ChartRenderer.ToRectangle(label.GetLayoutSlot());
                    labelRect.X += (int)(series[0].View.Viewport.X + ((IChartView)series[0].View).PlotOriginX);
                    labelRect.Y += (int)(series[0].View.Viewport.Y + ((IChartView)series[0].View).PlotOriginY);

                    if (chartSeries.View.GetArea<CartesianArea>().Orientation == Orientation.Vertical)
                    {
                        labelRect.Y -= this.DistanceToLabel;
                    }
                    else
                    {
                        labelRect.X += this.DistanceToLabel;
                    }

                    labelRect.Inflate(0, this.DistanceBetweenLabels);

                    label.SmartRectangle = labelRect;
                    labels.Add(label);
                }
            }

            CartesianSeries cartesianSeries = (CartesianSeries)series[0];

            if (cartesianSeries != null)
            {
                this.RestrictWithinAxes(labels, cartesianSeries);
            }

            LabelElement labelToMove = this.GetElementWithMostOverlaps(labels, series);
            int counter = 0;

            while (labelToMove != null && counter < labels.Count)
            {
                Rectangle firstDirectionRect;
                Rectangle secondDirectionRect;
                int firstMoveCost;
                int secondMoveCost;

                Rectangle dataPointLayout = ChartRenderer.ToRectangle(labelToMove.DataPoint.LayoutSlot);
                dataPointLayout.X += (int)labelToMove.View.Viewport.X;
                dataPointLayout.Y += (int)labelToMove.View.Viewport.Y;

                if (cartesianSeries.View.GetArea<CartesianArea>().Orientation == System.Windows.Forms.Orientation.Vertical)
                {
                    firstDirectionRect = this.GetBestPositionInUpwardDirection(labels, labelToMove, cartesianSeries);
                    secondDirectionRect = this.GetBestPositionInDownwardDirection(labels, labelToMove, cartesianSeries);

                    firstMoveCost = Math.Abs(labelToMove.SmartRectangle.Y - firstDirectionRect.Y);
                    secondMoveCost = Math.Abs(labelToMove.SmartRectangle.Y - secondDirectionRect.Y);
                }
                else
                {
                    firstDirectionRect = this.GetBestPositionInLeftDirection(labels, labelToMove, cartesianSeries);
                    secondDirectionRect = this.GetBestPositionInRightDirection(labels, labelToMove, cartesianSeries);

                    firstMoveCost = Math.Abs(dataPointLayout.X - firstDirectionRect.X);
                    secondMoveCost = Math.Abs(dataPointLayout.X - secondDirectionRect.X);
                }

                if (!dataPointLayout.IntersectsWith(secondDirectionRect) && firstMoveCost > secondMoveCost)
                {
                    labelToMove.SmartRectangle = secondDirectionRect;
                }
                else
                {
                    labelToMove.SmartRectangle = firstDirectionRect;
                }

                labelToMove = this.GetElementWithMostOverlaps(labels, series);
                counter++;
            }

            this.FinalPositionsOptimization(labels);

            foreach (LabelElement label in labels)
            {
                Rectangle rect = label.SmartRectangle;
                rect.Inflate(0, -this.DistanceBetweenLabels);

                Rectangle dataPointLayout = ChartRenderer.ToRectangle(label.DataPoint.LayoutSlot);
                dataPointLayout.X += (int)cartesianSeries.View.Viewport.X;
                dataPointLayout.Y += (int)cartesianSeries.View.Viewport.Y;
                int delta = 1;

                if (dataPointLayout.Y > label.SmartRectangle.Y)
                {
                    delta = -1;
                }

                rect.Y += delta * this.DistanceToLabel;
                label.SmartRectangle = rect;
            }
        }
    }

Hi Team,

Can you please share sample or demo code for candlestick graph (C# winform).

Thanks

Use attached to reproduce. 

- Click at least 7 times.

Workaround: Crete new series instance each time.