Problem changing legend panel orientation

[Nuno Ferreira]

I think there's a problem to change legend panel orientation when RadChart control starts with that panel visibility collapsed.

I have a project with two RadChart controls with same data. First control starts with legend panel visible, the second starts with panel collapsed.
I have a button for each control to change orientation. For the first chart, changing orientation works fine, for the other doesn't.

I'm using RadControls for Silverlight v2010.1.422.

sample XAML:

 

<Grid x:Name="LayoutRoot">
        <StackPanel Orientation="Vertical">
            <telerik:RadChart x:Name="rChart1" Width="300" Height="200"/>
            <Button Content="Orientation" Click="Orientation1_Click" Margin="10" Width="80"/>
            <telerik:RadChart x:Name="rChart2" Width="300" Height="200" Margin="50,0,0,0"/>
            <Button Content="Orientation" Click="Orientation2_Click" Margin="10" Width="80"/>
        </StackPanel>
    </Grid>

 

 

Code-Behind:

public MainPage()
        {
            InitializeComponent();

            List<ChartData> data = new List<ChartData>();
            data.Add(new ChartData { Name = "A", Value = 1 });
            data.Add(new ChartData { Name = "B", Value = 2 });
            data.Add(new ChartData { Name = "C", Value = 3 });
            data.Add(new ChartData { Name = "D", Value = 4 });

            SeriesMapping sm = new SeriesMapping();
            sm.ItemMappings.Add(new ItemMapping("Name", DataPointMember.XCategory));
            sm.ItemMappings.Add(new ItemMapping("Value", DataPointMember.YValue));
            sm.ItemMappings.Add(new ItemMapping("Name", DataPointMember.LegendLabel));

            rChart1.ItemsSource = data;
            rChart1.DefaultSeriesDefinition = new PieSeriesDefinition();
            rChart1.SeriesMappings.Add(sm);
            rChart1.DefaultView.ChartArea.Legend.ItemsPanelOrientation = Orientation.Vertical;

            rChart2.ItemsSource = data;
            rChart2.DefaultSeriesDefinition = new PieSeriesDefinition();
            rChart2.SeriesMappings.Add(sm);
            rChart2.DefaultView.ChartLegend.Visibility = Visibility.Collapsed;
        }

        private void Orientation1_Click(object sender, RoutedEventArgs e)
        {
            Orientation o = rChart1.DefaultView.ChartArea.Legend.ItemsPanelOrientation;
            if (o.Equals(Orientation.Horizontal)) rChart1.DefaultView.ChartArea.Legend.ItemsPanelOrientation = Orientation.Vertical;
            else rChart1.DefaultView.ChartArea.Legend.ItemsPanelOrientation = Orientation.Horizontal;
        }

        private void Orientation2_Click(object sender, RoutedEventArgs e)
        {
            Visibility v = rChart2.DefaultView.ChartLegend.Visibility;
            if (v.Equals(Visibility.Collapsed)) rChart2.DefaultView.ChartLegend.Visibility = Visibility.Visible;

            Orientation o = rChart2.DefaultView.ChartArea.Legend.ItemsPanelOrientation;
            if (o.Equals(Orientation.Horizontal)) rChart2.DefaultView.ChartArea.Legend.ItemsPanelOrientation = Orientation.Vertical;
            else rChart2.DefaultView.ChartArea.Legend.ItemsPanelOrientation = Orientation.Horizontal;
        }

 
ChartData is a separate class file with two automatic properties: Name and Value

[Ves]

Hello Nuno,

Thanks for the details. I was able to reproduce the issue and I have notified our developers of it. The fix will be available in the next version of the control. I have updated your Telerik points.

Best regards,
Ves
the Telerik team