Event handler to notify about changes in the state of the underlying subscription.

Namespace:  Microsoft.Rtc.Collaboration.ContactsGroups
Assembly:  Microsoft.Rtc.Collaboration(in Microsoft.Rtc.Collaboration.dll)

Syntax

Visual Basic (Declaration)
Public Event 
SubscriptionStateChange 
As 
EventHandler(
Of 

PresenceSubscriptionStateChangedEventArgs)
C#
public event 
EventHandler<

PresenceSubscriptionStateChangedEventArgs> 
SubscriptionStateChange
Visual C++
public:
 
event 
EventHandler<

PresenceSubscriptionStateChangedEventArgs^>^ 
SubscriptionStateChange {
	
void 
add (
EventHandler<

PresenceSubscriptionStateChangedEventArgs^>^ 
value);
	
void 
remove (
EventHandler<

PresenceSubscriptionStateChangedEventArgs^>^ 
value);
}
JavaScript
function add_
subscriptionStateChange(
value);
function remove_
subscriptionStateChange(
value);

See Also