SparrowChart with multiple ColumnSeries

Mar 16, 2014 at 10:56 PM
Edited Mar 16, 2014 at 10:57 PM
Hi, I have this xaml:
                       <sparrow:SparrowChart Name="chartTransazioni" Height="220" Margin="10" Theme="Custom">
                                <sparrow:SparrowChart.Legend>
                                    <sparrow:Legend LegendPosition="Outside" Dock="Top"/>
                                </sparrow:SparrowChart.Legend>
                                <sparrow:SparrowChart.XAxis>
                                    <sparrow:CategoryXAxis Interval="1" LabelAngle="0"/>                                         
                                </sparrow:SparrowChart.XAxis>
                                <sparrow:SparrowChart.YAxis>
                                    <sparrow:LinearYAxis/>
                                </sparrow:SparrowChart.YAxis>                                    
                                <sparrow:ColumnSeries Stroke="Green" Fill="Green" Label="Entrate" Name="SerieEntrate"              PointsSource="{Binding SerieEntrate}" XPath="X" YPath="Y"/>
                                <sparrow:ColumnSeries Stroke="Red" Fill="Red" Label="Uscite" Name="SerieUscite"  PointsSource="{Binding SerieUscite}" XPath="X" YPath="Y"/>                                                                            
                            </sparrow:SparrowChart>
it's not work well. The first green column and last red column is not visible. Can you help me?