DatabaseAddChangeListener Method (TaskScheduler, EventHandlerDatabaseChangedEventArgs)

Adds a change listener for the changes that occur in this database. Signatures are the same as += style event handlers, but the callbacks will be called using the specified TaskScheduler. If the scheduler is null, the default task scheduler will be used (scheduled via thread pool).

Namespace: Couchbase.Lite
Assembly: Couchbase.Lite (in Couchbase.Lite.dll) Version: 2.0.0-b0713

Syntax

Copy

public ListenerToken AddChangeListener(
	TaskScheduler scheduler,
	EventHandler<DatabaseChangedEventArgs> handler
)

Parameters

scheduler: Type: System.Threading.TasksTaskScheduler
The scheduler to use when firing the change handler
handler: Type: SystemEventHandlerDatabaseChangedEventArgs
The handler to invoke

Return Value

Type: ListenerToken
A ListenerToken that can be used to remove the handler later

Exceptions

Exception	Condition
ArgumentNullException	Thrown if handler is null
InvalidOperationException	Thrown if this method is called after the database is closed

Reference

Database Class

AddChangeListener Overload

Couchbase.Lite Namespace