Unconditional Delivery Listeners¶
The where clause
argument in the addDeleteListener
method is optional. When it is not provided, the real-time database will deliver any object which is being deleted from the database's table:
var orderEventHandler = Backendless.Data.Of( "Order" ).RT(); orderEventHandler.AddDeleteListener( deletedOrder => { Console.WriteLine( $"an Order object has been deleted from the database. Object ID - {deletedOrder[ "objectId" ]}" ); } );
var orderEventHandler = Backendless.Data.Of<Order>().RT(); orderEventHandler.AddDeleteListener( deletedOrder => { Console.WriteLine( $"an Order object has been deleted from the database. Object ID - {deletedOrder.ObjectId}"); } );