I want to use a formula attribute to get time-series data - Simple arithmetic on values
This works fine with PIpoint attribute inputs - I can bring up the “timeseries data” dialog in system explorer and get the archive/interpolated values of “sinusoid+cdt158” or whatever.
However if I use an attribute with a custom DR as an input it only returns a single “current” value.
In the “time series data” dialog in system explorer it says “input attribute X.... does not support time context” - it does support time context!
To rules our programming errors on my part, I verified this using the OSI example “rollup” DR as an input to a formula attribute – which does exactly the same.
Why does the fromula DR insist that these Custom DR do not support time context ? In both cases The "SupportedContexts" property is returning "“AFDataReferenceContext.All”
Is there some other checking going on? (AF 2.5 BTW)