ds.Set( ds[1] + <new value>)
The problem is initialization -- ds[1] will not be valid the first time. How do I check whether or not ds[1] will be valid? I tried ds.ContainsValue(1), but that gets an "object reference not set" error. I do not see a ds.Length property.
Do I really have to keep my own Boolean flag, rather than checking something about the DataSeries itself?
Thanks,
EV
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