RadCartesianChart Event

[Lee]

Hi.

Additionally, I have a question.

It is event about RadCartesianChart.

I want to occur event when data of chart is changed.

example code part. 

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chart.xaml
<telerik:RadCartesianChart.SeriesProvider>
                <telerik:ChartSeriesProvider Source="{Binding Series}">
                    <telerik:ChartSeriesProvider.SeriesDescriptors>
                        <telerik:CategoricalSeriesDescriptor ItemsSourcePath="Data" ValuePath="Value" CategoryPath="LocalTime" >


chartViewModel.cs
Series type is ObservableCollection<TrendSeries>

    public class TrendSeries
    {
        public string Name { get; set; }
        public ObservableCollection<TrendData> Data { get; set; }
        public string Unit { get; set; }
        public short Place { get; set; }
    }

    public class TrendData
    {
        public double Value { get; set; }
        public short Place { get; set; }
        public string LineName { get; set; }
        public string Time { get; set; }
        public string Color { get; set; }
        public DateTime LocalTime { get; set; }
    }

in timer event(tick)

........
ObservableCollection<TrendData> data = Series[i].Data;

data.Add(....)

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Finally, when 'data' is changed, some event occur.

What should I do for it?

[Pavel R. Pavlov]

Hi,

Your custom TrendSeries class should implement the INotifyPropertyChanged interface. You can find guidelines on the matter in this article. Another way would be to take advantage of our ViewModelBase class. It implements the interface and you need to subclass it only.

I hope this information will get you started.

Regards,
Pavel R. Pavlov
Telerik