[Solved] Binding to dictionary<int, ObservableCollection<T>>

[Jeremy]

I am trying to create a RadChart that has a line series for each collection contained in a dictionary.  I have looked at the "Binding to Nested Collections" example and tried setting the CollectionIndex of the SeriesMapping to the integer key used by dictionary but I get an ArgumentOutOfRange exception when I set the charts Itemsource.  I also tried just setting it to 0 when there is a single collection in the dictionary but no change.

This is what I am trying to bind to:

public Dictionary<int, ObservableCollection<PubSubServiceProxy.TimestampedDouble>> Data
        { get; set; }

This is the code that adds the series.  tagId is a key into the dictionary.

void AddSeries(string name, int tagId)
{
    try
    {
        var seriesMapping = new SeriesMapping();
        seriesMapping.SeriesDefinition = new LineSeriesDefinition();
        seriesMapping.SeriesDefinition.SeriesName = name;
        seriesMapping.SeriesDefinition.ShowItemLabels = false;
        seriesMapping.SeriesDefinition.ShowItemToolTips = false;
        seriesMapping.ItemMappings.Add(new ItemMapping("Timestamp", DataPointMember.XValue));
        seriesMapping.ItemMappings.Add(new ItemMapping("Value", DataPointMember.YValue));
        seriesMapping.CollectionIndex = tagId;
        chart.SeriesMappings.Add(seriesMapping);
        chart.DefaultView.ChartArea.AxisX.DefaultLabelFormat = "mm:ss.fff";
        chart.DefaultView.ChartArea.AxisX.LabelRotationAngle = 45;
        chart.ItemsSource = _viewModel.Data;
    }
    catch (Exception ex)
    {
        throw;
    }
}

Can someone tell me what I am doing wrong?  I'm still a trial user and would like to make sure that this works before I purchase the controls.  Thanks.

[Evgenia]

Hi Jeremy,

Your question was answered in the Support thread started from you (Ticket ID: 394656).
As a side note - please choose one of the threads(Forum or Support) so that it's easier for me and you to follow the correspondence.

Best wishes,
Evgenia
the Telerik team