Asynchronously changes what attributes of the UserSettings are being watch.

Namespace: ININ.IceLib.People
Assembly: ININ.IceLib.People (in ININ.IceLib.People.dll) Version: (


public void ChangeWatchedAttributesAsync(
	string[] attributeNamesToAdd,
	string[] attributeNamesToRemove,
	bool replaceExisting,
	AsyncCompletedEventHandler completedCallback,
	Object userState
Visual Basic
Public Sub ChangeWatchedAttributesAsync ( _
	attributeNamesToAdd As String(), _
	attributeNamesToRemove As String(), _
	replaceExisting As Boolean, _
	completedCallback As AsyncCompletedEventHandler, _
	userState As Object _


Type: array<System..::..String>[]()[][]
The attribute names to add. (Can be nullNothingnullptra null reference (Nothing in Visual Basic).)
Type: array<System..::..String>[]()[][]
The attribute names to remove. (Can be nullNothingnullptra null reference (Nothing in Visual Basic).)
Type: System..::..Boolean
if set to trueTruetruetrue (True in Visual Basic), replace the existing list.
Type: System.ComponentModel..::..AsyncCompletedEventHandler
The callback to invoke when the asynchronous operation completes.
Type: System..::..Object
An optional object that contains state information for this request. This object is a way for the caller to store context information which will be provided to the AsyncCompleted event. If no context information is desired then nullNothingnullptra null reference (Nothing in Visual Basic) may be supplied.


When completed, the completedCallback delegate is invoked on a thread appropriate to the application-model, such as the GUI thread in a UI application. The Error property of the AsyncCompletedEventArgs-derived object passed to the delegate will contain any exceptions thrown while executing the asynchronous task. See the synchronous version of this method for more detailed error information. For more information on async method calls, see How Async Calls Work.

Note: This method silently ignores attempts to add items already being watched or to remove items not being watched.

Derived classes have attribute classes which define the attributeNamesToAdd and attributeNamesToRemove strings each derived class can support. Custom strings may also be used for custom handlers. For a list of derived classes and their associated attribute classes see the StartWatching(array<String>[]()[][]) method.

For more information on watches see How Watches Work.


System..::..ArgumentNullExceptionA parameter is nullNothingnullptra null reference (Nothing in Visual Basic).

Version Information

Supported for IC Server version 2015 R1 and beyond.
For 4.0, supported for IC Server version 4.0 GA and beyond.
For 3.0, supported for IC Server version 3.0 GA and beyond.

See Also