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[Solved] Problem changing legend panel orientation

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Nuno Ferreira asked on 24 Jun 2010, 05:42 PM

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

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