GetTableNames Method (RealtimeDatastore)

In This Topic

Gets the name of all the tables that exist in the currently opened realtime data store. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

C#
Visual Basic (Declaration)

public IReadOnlyList<string> GetTableNames()

Public Function GetTableNames() As IReadOnlyList(Of String)

Return Value

The name of all the tables that exist in the currently opened realtime data store.

Exceptions

Exception	Description
ArcGIS.Core.Data.Exceptions.GeodatabaseException	A geodatabase-related exception has occurred.
ArcGIS.Core.CalledOnWrongThreadException	This method or property must be called within the lambda passed to QueuedTask.Run.
System.InvalidOperationException	Please make sure a valid data store has been opened first.
System.NotSupportedException	The data store does not support this operation.

Remarks

For stream service there is always only one table per datastore.

Example

Connect to a real-time feature class from a real-time datastore

var url = "https://geoeventsample1.esri.com:6443/arcgis/rest/services/AirportTraffics/StreamServer";
     
await QueuedTask.Run(() =>
{
  var realtimeServiceConProp = new RealtimeServiceConnectionProperties(
                                   new Uri(url),
                                   RealtimeDatastoreType.StreamService
                                );
  using (var realtimeDatastore = new RealtimeDatastore(realtimeServiceConProp))
  {
    //A Realtime data store only contains **one** Realtime feature class (or table)
    var name = realtimeDatastore.GetTableNames().First();
    using (var realtimeFeatureClass = realtimeDatastore.OpenTable(name) as RealtimeFeatureClass)
    {
      //feature class, by default, is not streaming (opposite of the stream layer)
      realtimeFeatureClass.StartStreaming();
      //TODO use the feature class
      //...
    }
  }

});

Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

Reference

RealtimeDatastore Class
RealtimeDatastore Members

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