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Series starting with null value


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I get NullReferenceException when I bind an array of nullable intergers which starting with a null value. For instance:

 myChart.DataSourceSettings.DataSource = new ListProvider(new int?[] { null, 1, 2, 3, 4 }); // NullReferenceException thrown. 

Is there any way to walk around this problem? I do want that null value as a placeholder.


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The ListProvider does not support nullable value type at this point.

You will need to pass an array of doubles like this:

myChart.DataSourceSettings.DataSource = new ListProvider(new double[] { Chart.Hidden, 1, 2, 3, 4 });

Or you can use the Data API to pass the values one by one.

We will fix issue this in the next Service Pack.

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I thought ListProvider supports nullable values since it worked fine unless null value was placed at the head of the series.

Anyway, Chart.Hidden solved my problem. Thanks a lot, and I'm looking forward to the next service pack!


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