ConferenceSession.BeginModifyRole Method (ConversationParticipant, ConferencingRole, AsyncCallback, Object)
Modifies the role of a participant in the conference.
Namespace: Microsoft.Rtc.Collaboration
Assembly: Microsoft.Rtc.Collaboration (in Microsoft.Rtc.Collaboration.dll)
Syntax
'Declaration
Public Function BeginModifyRole ( _
participant As ConversationParticipant, _
role As ConferencingRole, _
userCallback As AsyncCallback, _
state As Object _
) As IAsyncResult
'Usage
Dim instance As ConferenceSession
Dim participant As ConversationParticipant
Dim role As ConferencingRole
Dim userCallback As AsyncCallback
Dim state As Object
Dim returnValue As IAsyncResult
returnValue = instance.BeginModifyRole(participant, _
role, userCallback, state)
public IAsyncResult BeginModifyRole(
ConversationParticipant participant,
ConferencingRole role,
AsyncCallback userCallback,
Object 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: System.AsyncCallback
The method to be called when the asynchronous operation is completed.
- state
Type: System.Object
A user-provided object that distinguishes this particular asynchronous operation from other asynchronous operations.
Return Value
Type: System.IAsyncResult
An IAsyncResult that references the asynchronous operation.
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. |
Remarks
This operation is allowed by the server for conference leaders only.