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[Solved] Pie chart is not showing different colors

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kalyan gupta asked on 26 Aug 2010, 10:58 AM

Hi @

I am developing an application using SL 4, VS 2010. I am using Telerik Silverlight Chart controls in the application.

I am displaying Pie chart.

I have to show count of Employees in each organisation in Pie chart with Organisation in Legend positions.

I am getting correct chart but all the organisations in same color.
Please let me know i am doing something wrong in following code snippet.

/// <summary>

/// Load pie chart

/// </summary>

/// <param name="selectionData">FilterResult list</param>

private void LoadPieChart(FilterResult[] selectionData)

{

Binding binding = new Binding("DefaultView.ChartLegendPosition");

binding.Mode = BindingMode.TwoWay;

LegendPosition.DataContext = trcRadPieChart;

LegendPosition.SetBinding(RadComboBox.SelectedValueProperty, binding);

Binding binding2 = new Binding("DefaultView.ChartLegend.LegendItemMarkerShape");

binding2.Mode = BindingMode.TwoWay;

LegendItemMarkerShape.DataContext = trcRadPieChart;

LegendItemMarkerShape.SetBinding(RadComboBox.SelectedValueProperty, binding2);

this.trcRadPieChart.DefaultView.ChartTitle.Content = "Employee per Organisation";

this.trcRadPieChart.DefaultView.ChartArea.LabelFormatBehavior = LabelFormatBehavior.None;

this.SetMappings(this.trcRadPieChart);

this.trcRadPieChart.ItemsSource = selectionData;

isPieChartSeriesMappingAdded = true;

this.trcRadPieChart.DefaultView.ChartLegend.LegendItemMarkerShape = MarkerShape.Circle;

}

/// <summary>

/// Set the mapping

/// </summary>

/// <param name="chart">RadChart</param>

private void SetMappings(RadChart chart)

{

SeriesMapping seriesMapping = new SeriesMapping();

seriesMapping.SeriesDefinition = new PieSeriesDefinition();

seriesMapping.GroupingSettings.GroupDescriptors.Add(new ChartGroupDescriptor("ORGANISATION"));

seriesMapping.GroupingSettings.ShouldCreateSeriesForLastGroup = true;

ItemMapping itemMapping = new ItemMapping("EMPLOYEE", DataPointMember.YValue);

seriesMapping.ItemMappings.Add(itemMapping);

itemMapping = new ItemMapping("ORGANISATION", DataPointMember.LegendLabel);

seriesMapping.ItemMappings.Add(itemMapping);

chart.SeriesMappings.Clear();

chart.SeriesMappings.Add(seriesMapping);

}

[Solved] Pie chart is not showing different colors

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