Begins an asynchronous operation to unsubscribe to a target.

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

Syntax

Visual Basic (Declaration) 
Public 
Function 
BeginRemoveTarget ( _
	
uri 
As 
String, _
	
userCallback 
As 
AsyncCallback, _
	
state 
As 
Object _
) 
As 
IAsyncResult
C# 
public 
IAsyncResult 
BeginRemoveTarget(
	
string 
uri,
	
AsyncCallback 
userCallback,
	
Object 
state
)
Visual C++ 
public:
IAsyncResult^ 
BeginRemoveTarget(
	
String^ 
uri, 
	
AsyncCallback^ 
userCallback, 
	
Object^ 
state
)
JavaScript 
function 
beginRemoveTarget(
uri, 
userCallback, 
state);

Parameters

uri
Type: String
The URI of the target to remove.
userCallback
Type: AsyncCallback
The method to be called when the asynchronous operation is completed.
state
Type: Object
A user-provided object that distinguishes this particular asynchronous operation from other asynchronous operations.

Return Value

An IAsyncResult that references the asynchronous operation.

Exceptions

Exception Condition
ArgumentNullException Thrown when uriis null.
ArgumentException Thrown when uriis an invalid sip URI or a subscription does not exist for this target.

See Also