ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / StreamLayer Class / StartStreaming Method
Example Version

StartStreaming Method (StreamLayer)
Sets the stream layer to a state where it starts listening to broadcasts from a real-time data source.
Syntax
public void StartStreaming()
Exceptions
ExceptionDescription
This method or property must be called within the lambda passed to QueuedTask.Run.
Remarks
When you create a StreamLayer, it starts listening by default.
Example
Check the Stream Layer connection state
if (!streamLayer.IsStreamingConnectionOpen)
  //Must be on QueuedTask!
  streamLayer.StartStreaming();
Start and stop streaming
//Must be on QueuedTask!
//Start...
streamLayer.StartStreaming();
//Stop...
streamLayer.StopStreaming();
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also