i also got the following error "Unable to cast object of type 'Infragistics.UltraChart.Core.Primitives.GraphicsContext' to type 'Infragistics.UltraChart.Core.Primitives.Box'."

 Private Sub ucColumnChart_FillSceneGraph(ByVal sender As Object, ByVal e As Infragistics.UltraChart.Shared.Events.FillSceneGraphEventArgs) Handles ucCoulmnChart.FillSceneGraph
            Dim texts As New List(Of Text)()

            For Each prim As Primitive In e.SceneGraph

                'Dim box As Box = TryCast(prim, Box)
                Dim boxs As Box = Nothing
                boxs = CType(prim, Box)
                If boxs Is Nothing OrElse boxs.DataPoint Is Nothing Then
                    Continue For
                End If

                Dim text As New Text()
                text.labelStyle.HorizontalAlign = StringAlignment.Center
                text.labelStyle.VerticalAlign = StringAlignment.Center
                text.SetTextString(boxs.Value.ToString())
                text.bounds = boxs.rect
                texts.Add(text)
            Next
end sub

i need to include text labels in 3D column chart.

Hi,

I have two charts in page,  I filled chart 2 when the user clicked column bar of chart1.

The problem are width size of column bar chart2.

Thanks