Xaml binding isnt working....

Hi,
When i create graph in XAML, then binding to observable collection - it isn't working.
Why?

        <oxy:Plot Margin="10">
            <oxy:LineSeries x:Name="OxyPlotLine"
                            Width="Auto"
                            Height="Auto" ItemsSource="{Binding Mode=OneWay, Source={StaticResource ChartPoints}}" />
        </oxy:Plot>

            for (double i = 0; i <= stopValue; i++)
            {
                ii =+ i;
                CPColl.Add(new ChartPoint(i, CPColl.Count););             
            }

    class ChartPoint
    {
        private double _X;
        private double _Y;

        public ChartPoint(double X, double Y)
        {
            _X = X;
            _Y = Y;
        }

        public double X
        { get { return _X; } set { _X = value; } }

        public double Y
        { get { return _Y; } set { _Y = value; } }
    }

    class ChartPointsCollection: ObservableCollection<ChartPoint>
    {
        public ChartPointsCollection() : base()
        {  }
    }

OxyPlot is not automatically refreshing the plot when the collection changes (this was a design choice and I know it is different from normal WPF control behaviour). You need to trig the Invalidate or Refresh method on the Plot control yourself. I'll consider again if the OxyPlot.Wpf.ItemsSeries should listen to collection changes (and item property changes...)

Thank your for answer

Can your write a sample?

Can i use observable collections?

Yes, you can use any collection. See the examples in Source\Examples\Wpf