DatabaseAddDocumentChangeListener Method (String, TaskScheduler, EventHandlerDocumentChangedEventArgs)

Adds a document change listener for the document with the given ID and the TaskScheduler that will be used to invoke the callback. If the scheduler is not specified, then the default 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 AddDocumentChangeListener(
	string id,
	TaskScheduler scheduler,
	EventHandler<DocumentChangedEventArgs> handler
)

Parameters

id: Type: SystemString
The document ID
scheduler: Type: System.Threading.TasksTaskScheduler
The scheduler to use when firing the event handler
handler: Type: SystemEventHandlerDocumentChangedEventArgs
The logic to handle the event

Return Value

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

Exceptions

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

Reference

Database Class

AddDocumentChangeListener Overload

Couchbase.Lite Namespace