| IMongoCollectionExtensionsWatchTDocument Method (IMongoCollectionTDocument, IClientSessionHandle, ChangeStreamOptions, CancellationToken) | 
 
            Watches changes on the collection.
            
 
    Namespace: 
   MongoDB.Driver
    Assembly:
   MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.11.0+cb27a82ea70620ad1acad8058809be8302ae4f2a
 Syntax
Syntaxpublic static IChangeStreamCursor<ChangeStreamDocument<TDocument>> Watch<TDocument>(
	this IMongoCollection<TDocument> collection,
	IClientSessionHandle session,
	ChangeStreamOptions options = null,
	CancellationToken cancellationToken = null
)
<ExtensionAttribute>
Public Shared Function Watch(Of TDocument) ( 
	collection As IMongoCollection(Of TDocument),
	session As IClientSessionHandle,
	Optional options As ChangeStreamOptions = Nothing,
	Optional cancellationToken As CancellationToken = Nothing
) As IChangeStreamCursor(Of ChangeStreamDocument(Of TDocument))
[<ExtensionAttribute>]
static member Watch : 
        collection : IMongoCollection<'TDocument> * 
        session : IClientSessionHandle * 
        ?options : ChangeStreamOptions * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _options = defaultArg options null
        let _cancellationToken = defaultArg cancellationToken null
*)
-> IChangeStreamCursor<ChangeStreamDocument<'TDocument>> 
Parameters
- collection
- Type: MongoDB.DriverIMongoCollectionTDocument
 The collection.
- session
- Type: MongoDB.DriverIClientSessionHandle
 The session.
- options (Optional)
- Type: MongoDB.DriverChangeStreamOptions
 The options.
- cancellationToken (Optional)
- Type: System.ThreadingCancellationToken
 The cancellation token.
Type Parameters
- TDocument
- The type of the document.
Return Value
Type: 
IChangeStreamCursorChangeStreamDocumentTDocument
            A change stream.
            
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type 
IMongoCollectionTDocument. When you use instance method syntax to call this method, omit the first parameter. For more information, see 
Extension Methods (Visual Basic) or 
Extension Methods (C# Programming Guide).
 See Also
See Also