BeginFindUsersOrGroupsForRole Method

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Finds users or user groups who are eligible for the given role on the specified chat room. The searchString matches against the Name of the user or user group. To be eligible for Member or Manager roles, a user or user group must be in scope on the category. To be eligible for Presenter, the principal must already be a member of the chat room.

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


Public Function BeginFindUsersOrGroupsForRole ( _
    role As ChatRoomRole, _
    chatRoomUri As Uri, _
    searchString As String, _
    userCallback As AsyncCallback, _
    state As Object _
) As IAsyncResult
Dim instance As ChatRoomManagementServices
Dim role As ChatRoomRole
Dim chatRoomUri As Uri
Dim searchString As String
Dim userCallback As AsyncCallback
Dim state As Object
Dim returnValue As IAsyncResult

returnValue = instance.BeginFindUsersOrGroupsForRole(role, _
    chatRoomUri, searchString, userCallback, _
public IAsyncResult BeginFindUsersOrGroupsForRole(
    ChatRoomRole role,
    Uri chatRoomUri,
    string searchString,
    AsyncCallback userCallback,
    Object state


  • searchString
    Type: System.String
    The search string by which eligible users will be filtered.
  • userCallback
    Type: System.AsyncCallback
    The method to be invoked when this asynchronous operation completes.
  • state
    Type: System.Object
    An object to be passed back to the callback.

Return Value

Type: System.IAsyncResult
An IAsyncResult that references this operation.


Exception Condition

Thrown when invalid arguments are passed.


Thrown when the GroupChatEndpoint is not established.


Thrown when the chat server connection is not in a valid state to send the command.


Thrown when the GroupChatEndpoint encounters an error communicating with the group chat server.


This request will be processed asynchronously. See EndFindUsersOrGroupsForRole(IAsyncResult) to complete this asynchronous operation.

See Also


ChatRoomManagementServices Class

ChatRoomManagementServices Members

Microsoft.Rtc.Collaboration.GroupChat.Management Namespace