Completes the asynchronous request initiated by BeginGetRecentChatHistory(Int32, AsyncCallback, Object) .

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

Syntax

Visual Basic (Declaration) 
Public 
Function 
EndGetRecentChatHistory ( _
	
asyncResult 
As 
IAsyncResult _
) 
As 
ReadOnlyCollection(
Of 
ChatMessage)
Visual Basic (Usage) 
Dim 
instance 
As 

ChatRoomSession
Dim 
asyncResult 
As 
IAsyncResult
Dim 
returnValue 
As 
ReadOnlyCollection(
Of 
ChatMessage)

returnValue = instance.
EndGetRecentChatHistory(
asyncResult)
C# 
public 
ReadOnlyCollection<

ChatMessage> 
EndGetRecentChatHistory(
	
IAsyncResult 
asyncResult
)

Parameters

asyncResult
Type: System . . :: . . 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
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.

See Also