Hi,

In my ViewModel I have an ObservableCollection of ObervableCollection<DataEntry>. Each DataEntry is a point that has a Date (X axis) and Value (for its Y axis). I want a common Date X axis on the chart, and each collection of DataEntries can use a shared Y axis.

Any ideas how to bind this in XAML,or in code?

In my Model:

public partial class DataEntry
{
public int DataEntryId { get; set; }
public System.DateTime Date { get; set; }
public double Value { get; set; }
public int CoreId { get; set; }

public virtual Core Core { get; set; }
}

In my ViewModel, the property I want to bind too:

private ObservableCollection<ObservableCollection<DataEntry>> _sensorData;
public ObservableCollection<ObservableCollection<DataEntry>> SensorData
{
get { return _sensorData; }
set { _sensorData = value; NotifyPropertyChanged("SensorData"); }
}

Each collection should have its own ScatterLineSeries right?

If I add a new collection, or remove one from the SensorData collection I would like the chart to automatically update to show it. They're populated from a BackgroundWorker thread.

Thanks

Chunda