3D Charts will be a nice addition to the WinForms suite

If one sets the LabelFormat property of LinearAxis it will not be respected in most cases.
Steps to reproduce:
1. Add a LineSeries to a chart
2. Set the VerticalAxis.LabelFormat to "{0:F2}"
3. Run the project
You will see that the labels are not formatted.

Steps to reproduce:
1. Add a pie series to a chart 
2. add three data points with values 19,20 and 61
3. Set the series LabelsOffsetFromCenter property to 0.2d
4. Run the project and start reducing the size of the chart. At some point you will see that the position of the label 20% will be incorrect.

Second scenario:
Add a pie chart and populate it with PieDataPoints, one of which is with value 0:

        Me.RadChartView1.AreaType = ChartAreaType.Pie
        Dim series As New PieSeries()
        series.DataPoints.Add(New PieDataPoint(50, "Germany"))
        series.DataPoints.Add(New PieDataPoint(70, "United States"))
        series.DataPoints.Add(New PieDataPoint(40, "France"))
        series.DataPoints.Add(New PieDataPoint(25, "United Kingdom"))
        series.DataPoints.Add(New PieDataPoint(0, "Italy"))
        series.ShowLabels = True
        Me.RadChartView1.Series.Add(series)

If one removes the trackball controller while the trackball info element is visible it will remain on the chart.
Steps to reproduce:
1. Add a chart to a form
2. Add series and data points 
3. Subscribe for the chart MouseClick event 
4. In the event handler change the value of the chart ShowTrackball property (from false to true or vice versa)
Start the project and click several times on the chart. You will see that trackball info elements will remain on the chart.

Steps to reproduce:
1. Add a chart to a form
2. Add a PanZoomController with ChartPanZoomMode set to Both
3. Add a series with some data
4. Set the LabelFitMode of the horizontal axis to Rotate
5. Run the project and zoom in on the chart and then pan.
You will see that when you pan vertically the labels of the horizontal axis will move in the wrong direction.

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).

Add Scatter area series support for RadChartView.

Add print functionality

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.

Currently RadChartView does not support null values.

One should be able to add annotations at certain positions within RadChartView.

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.

Currently, ScatterSeries are able to use NumericAxes only. A good improvement will be to allow using DateTimeContinuousAxes as well.

HeightAspectRatio affects the height of BarSeries even when the area has a horizontal orientation

Add null value support for RadChartView

Introduce mechanism that will allow the vertical axis to appear at a certain position regardless of the size of its labels. For reference see Stock Series \ Indicators example.

Add Scatter Line Series Support to RadChartView

If one sets the LabelsOffsetFromCenter property to any value there will be no change in the series labels on the chart.

Add Three Line Break Series to RadChartView

Add Point and Figure Series to RadChartView