Author Topic: ChartBySampling Questions  (Read 499 times)

jweiss1992

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ChartBySampling Questions
« on: August 24, 2020, 01:39:47 PM »
Hello,

I am using a ChartBySampling control to trend several tags from my PLC.  I'm unsure how to do the following with this -

  • I'd like to be able to have the user set the x-axis time span, in hours.  Not sure which property in my chart to change... I think it has something to do with the Chart Area property -> into the X-Axis property, then it's based off the Interval and IntervalType properties... so if my operator types in 2 hours, and i have interval set to 0.5 and interval type as seconds, the number I would need is 2 hours * 60 min/hr = 120 min * 60 sec/min = 7200 sec * 2 (0.5 second intervals) = 14400... but I'm not sure where to put this number.
  • The YAxisMin and YAxisMax properties are doubles... so I can set those to a number and it works fine.  But how do I set those properties to Auto from my code?