Public Overloads Function ExecuteQueryAsync( _
   ByVal query As IEntityQuery, _
   Optional ByVal userCallback As Action(Of EntityQueryOperation), _
   Optional ByVal userState As Object _
) As EntityQueryOperation

Dim instance As EntityManager
Dim query As IEntityQuery
Dim userCallback As Action(Of EntityQueryOperation)
Dim userState As Object
Dim value As EntityQueryOperation
 
value = instance.ExecuteQueryAsync(query, userCallback, userState)

public EntityQueryOperation ExecuteQueryAsync( 
   IEntityQuery query,
   Action<EntityQueryOperation> userCallback,
   object userState
)

public:
EntityQueryOperation^ ExecuteQueryAsync( 
   IEntityQuery^ query,
   Action<EntityQueryOperation^>^ userCallback,
   Object^ userState
) 

private void SampleAsynchQuery() {
  DomainModelEntityManager mgr = new DomainModelEntityManager();

  // Build a query and ask mgr to run it asynchronously.
  var query = mgr.Customers.Where(c => c.CompanyName.StartsWith("C"));
  int token = 1;
  mgr.ExecuteQueryAsync(query, AsyncQueryCompleted, token);
}

void AsyncQueryCompleted(EntityQueryOperation<Customer> e) {
  if (e.Error != null) {
    System.Diagnostics.Debug.WriteLine(e.Error.Message);
    return;
  }
  System.Diagnostics.Debug.WriteLine("queryid = " + e.UserState.ToString());
  System.Diagnostics.Debug.WriteLine("customers retrieved = " + e.Results.Count().ToString());
}