Changes the role of a participant in the conference.

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

Syntax

Visual Basic (Declaration) 
Public 
Function 
BeginModifyRole ( _
	
participant 
As 

ConversationParticipant, _
	
role 
As 

ConferencingRole, _
	
userCallback 
As 
AsyncCallback, _
	
state 
As 
Object _
) 
As 
IAsyncResult
C# 
public 
IAsyncResult 
BeginModifyRole(
	

ConversationParticipant 
participant,
	

ConferencingRole 
role,
	
AsyncCallback 
userCallback,
	
Object 
state
)
Visual C++ 
public:
IAsyncResult^ 
BeginModifyRole(
	

ConversationParticipant^ 
participant, 
	

ConferencingRole 
role, 
	
AsyncCallback^ 
userCallback, 
	
Object^ 
state
)
JavaScript 
function 
beginModifyRole(
participant, 
role, 
userCallback, 
state);

Parameters

participant
Type: Microsoft.Rtc.Collaboration . . :: . ConversationParticipant
The participant for which the role should be changed.
role
Type: Microsoft.Rtc.Collaboration . . :: . ConferencingRole
The desired role for the participant.
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.

Remarks

This operation is allowed by the server for conference leaders only.

Exceptions

Exception Condition
InvalidOperationException Thrown when the operation is not valid at the given conference session state.
ArgumentNullException Thrown when the participant argument was null.

See Also