EndQueryChatHistory Method
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Completes the asynchronous request initiated by BeginQueryChatHistory(ICollection<Uri>, ChatHistoryQueryOptions, AsyncCallback, Object) or BeginQueryChatHistory(ICollection<Uri>, String, Boolean, Boolean, AsyncCallback, Object).
Namespace: Microsoft.Rtc.Collaboration.GroupChat
Assembly: Microsoft.Rtc.Collaboration.GroupChat (in Microsoft.Rtc.Collaboration.GroupChat.dll)
Syntax
'Declaration
Public Function EndQueryChatHistory ( _
asyncResult As IAsyncResult _
) As ReadOnlyCollection(Of ChatHistoryResult)
'Usage
Dim instance As GroupChatServices
Dim asyncResult As IAsyncResult
Dim returnValue As ReadOnlyCollection(Of ChatHistoryResult)
returnValue = instance.EndQueryChatHistory(asyncResult)
public ReadOnlyCollection<ChatHistoryResult> EndQueryChatHistory(
IAsyncResult asyncResult
)
Parameters
- asyncResult
Type: System.IAsyncResult
The IAsyncResult that references this operation.
Return Value
Type: System.Collections.ObjectModel.ReadOnlyCollection<ChatHistoryResult>
A collection of ChatHistoryResult objects, one for each chat room that was queried, containing messages that match the query.
Exceptions
| Exception | Condition |
|---|---|
| [System.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. |