Change Series Definitionat runtime?

[Albert]

Is it possible to change like a Line chart to a Bar chart without having to rebind the data?

[Vladimir Milev]

Hi Albert,

Unfortunately it is not currently possible to do this. We will try to make the necessary improvements in RadChart so that this will work.

Kind regards,
Vladimir Milev
the Telerik team

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[Albert]

Thanks, but i already found a way to do it

[James]

Hi Albert, how did you do?
thank you in advance

[James]

I found a way to change chart data series definition at runtime - you just need to create a new DataSeries object and populate it with your list of DataPoint:

Private Sub BuildChart(ByVal type As ChartType)
        chart.DefaultView.ChartArea.DataSeries.Clear()
        Dim dataSerie As New DataSeries()
        Select Case type
            Case ChartType.Bar2D
                dataSerie.Definition = New BarSeriesDefinition()
            Case ChartType.Line2D
                dataSerie.Definition = New LineSeriesDefinition()
            Case ChartType.StackedArea3D
                dataSerie.Definition = New Area3DSeriesDefinition()
        End Select
        For Each data As ChartDataViewModel In Model.ChartElementDataList
            dataSerie.Add(New DataPoint() With {.XCategory = data.ChartXY.X.ToString(), .YValue = CDbl(data.ChartXY.Y)})
        Next
        chart.DefaultView.ChartArea.DataSeries.Add(dataSerie)       
    End Sub

[Nuno Ferreira]

It's already possible? I'm using RadControls for Silverlight v. 2010.1.309, but can't find a way to change chart type at runtime.

[Tim]

Any news on this?

Tim