Completes the asynchronous request initiated by BeginGetRecentChatHistory(Int32, AsyncCallback, Object) .
Assembly: Microsoft.Rtc.Collaboration.GroupChat(in Microsoft.Rtc.Collaboration.GroupChat.dll)
Syntax
Visual Basic (Declaration) |
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Public Function EndGetRecentChatHistory ( _ asyncResult As IAsyncResult _ ) As ReadOnlyCollection( Of ChatMessage) |
Visual Basic (Usage) |
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Dim instance As ChatRoomSession Dim asyncResult As IAsyncResult Dim returnValue As ReadOnlyCollection( Of ChatMessage) returnValue = instance. EndGetRecentChatHistory( asyncResult) |
C# |
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public ReadOnlyCollection< ChatMessage> EndGetRecentChatHistory( IAsyncResult asyncResult ) |
Parameters
- asyncResult
- Type:
System
.
.
::
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.
IAsyncResult
The IAsyncResult that references this operation.
Return Value
Type: System.Collections.ObjectModel . . :: . . ReadOnlyCollection < (Of < ( <' ChatMessage > ) > ) >A collection of the most recent chat messages from the chat room to which this session is joined.
Exceptions
Exception | Condition |
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ArgumentException |
Thrown when invalid arguments are passed. |
[Microsoft.Rtc.Collaboration.GroupChat.CommandFailedException] |
Thrown when the chat server encountered an error processing the request. |
[RealTimeException] |
Thrown when the GroupChatEndpoint encounters an error communicating with the group chat server. |
[System.InvalidOperationException] |
Thrown when invoked multiple times with the same asyncResult. |