/// <summary>
/// Returns the event-weighted count of a <see cref="PIPoint"/> over the requested <see cref="AFTimeRange"/>.
/// </summary>
/// <param name="tag">A PIPoint</param>
/// <param name="timeRange">An AFTimeRange</param>
/// <returns>A scalar int of the events within the time range.</returns>
public static int GetEventCount(this PIPoint tag, AFTimeRange timeRange)
{
var summaries = tag.Summary(timeRange, AFSummaryTypes.Count, AFCalculationBasis.EventWeighted, AFTimestampCalculation.Auto);
AFValue summary;
if (summaries.TryGetValue(AFSummaryTypes.Count, out summary))
{
if (summary.IsGood)
{
// One day this may have to be an Int64 or long
return(Convert.ToInt32(summary.Value));
}
}
return(0);
}
}//DetermineHistoricalTimeRanges
private int FindEventCount(PIPoint point, AFTime startTime, AFTime endTime)
{
//This method returns the event count for the specified PI point over the specified time range
int eventCount = 0;
//Create time range
AFTimeRange timeRange = new AFTimeRange(startTime, endTime);
//Call the AFSDK PIPoint.Summary method for Count. This should return a dictionary which contains the event count.
var summaryResult = point.Summary(timeRange, OSIsoft.AF.Data.AFSummaryTypes.Count, OSIsoft.AF.Data.AFCalculationBasis.EventWeighted, OSIsoft.AF.Data.AFTimestampCalculation.Auto);
//Pull our desired summary type from the summary result dictionary as an integer
eventCount = summaryResult[OSIsoft.AF.Data.AFSummaryTypes.Count].ValueAsInt32();
return(eventCount);
}//FindEventCount
