ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.Data.Realtime Namespace / RealtimeFeatureClassDefinition Class / HasTrackIDField Method
Example Version

HasTrackIDField Method (RealtimeFeatureClassDefinition)
Gets a value indicating whether this feature class has a field whose values are used to group features in tracks. This method must be called on the MCT. Use QueuedTask.Run.
Syntax
public bool HasTrackIDField()

Return Value

true if this table has a field containing track ids; otherwise, false.
Exceptions
ExceptionDescription
This method or property must be called within the lambda passed to QueuedTask.Run.
Remarks

If the table has a TrackID field, then you can renderer previous observations with different symbology and/or draw lines by connecting those observation locations.

Also refer to ArcGIS.Deskop.Mapping.StreamLayer.SetPreviousObservationsRenderer and ArcGIS.Deskop.Mapping.StreamLayer.SetTrackLinesRenderer for more details.

Example
Check the Realtime Feature Class is Track Aware
using (var rfc = streamLayer.GetFeatureClass())
using (var rfc_def = rfc.GetDefinition())
{
  if (rfc_def.HasTrackIDField())
  {
    //Track aware
  }
}
Get the Track Id Field from the Realtime Feature class
//Must be on QueuedTask
using (var rfc = streamLayer.GetFeatureClass())
using (var rfc_def = rfc.GetDefinition())
{
  if (rfc_def.HasTrackIDField())
  {
    var fld_name = rfc_def.GetTrackIDField();

  }
}
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also