OpenTable Method (RealtimeDatastore)

In This Topic

Gets a RealtimeTable or RealtimeFeatureClass instance associated with . This method must be called on the MCT. Use QueuedTask.Run.

Syntax

C#
Visual Basic (Declaration)

public Table OpenTable( 
   string name
)

Public Function OpenTable( _
   ByVal name As String _
) As Table

Parameters

name: The name of the dataset to open.

Return Value

A RealtimeTable or RealtimeFeatureClass instance.

Exceptions

Exception	Description
System.InvalidOperationException	No valid real-time datastore has been opened prior to calling this operation.
System.ArgumentException	A realtime datastore related exception has occurred. For example, the name is invalid.
ArcGIS.Core.CalledOnWrongThreadException	This method or property must be called within the lambda passed to QueuedTask.Run.
System.NotSupportedException	The data store does not support this operation.

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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