Lync Development

by Michael Greenlee

• About Michael

9 Comments on “UCMA 4.0 Async Extension Methods”

1. 
   1 Raufan said at 2:49 pm on October 27th, 2012:

   Hi Michael, finally i found the others that researching in UCMA 4.0.

   I need your help, any advice you give to me i will very appreciate it 🙂

   I want to ask you about persistent chat sdk. I have problem with adding users as member to a chat room. I had a user that has creator role on a category. I succeeded on creating a new chat room. An exception is thrown stated “Unknown error occurred on the server” while i adding other users as a member to a chat room.

   I had googled and binged the problem but no solution et all.

   Please help me 🙁

   Thank you before 🙂

2. 
   2 Michael said at 10:32 am on October 29th, 2012:

   Could you explain what your code does or post some of it? Is there any inner exception or are there any details in the exception?

3. 3 Lync MVP Article Roundup: October 2012 - NextHop - Site Home - TechNet Blogs said at 4:50 pm on October 30th, 2012:

   […] UCMA 4.0 Async Extension Methods […]

4. 
   4 Raufan said at 2:24 pm on November 2nd, 2012:

   Thanks for the response. Finally i found the solutions and i posted here http://social.msdn.microsoft.com/Forums/en-US/lyncpersistentcssdk/thread/d63caa15-52ee-465f-9dc5-03d9c055202b.

   Thank you for your response 🙂

   by the way, I created the code for creating persistent chat room and want to add members dynamically. The problem is private chat room doesn’t allow me to add members dynamically.

5. 
   5 duncan said at 6:02 am on December 12th, 2012:

   Ran into a little problem using this code, the function “ApplicationEndpoint.EstablishAsync” does not call Begin/EndEstablish, it calls Begin/EndDrain. I have modified the function to call the correct methods, and changed it from Task to Task of SipResponse:

   public static Task<SipResponseData> EstablishAsync(this ApplicationEndpoint endpoint)
   {
   return Task.Factory.FromAsync<SipResponseData>(
   endpoint.BeginEstablish,
   endpoint.EndEstablish, null);
   }

6. 
   6 Michael said at 8:53 am on December 12th, 2012:

   Thanks for catching that. It’s actually supposed to be the DrainAsync method. EstablishAsync is in LocalEndpointMethods.cs.
   I uploaded a fix.

7. 
   7 Shannon McCoy said at 8:18 am on December 21st, 2012:

   Hey Michael,
   I noticed that you had commented out the overload for

   //public static Task ModifyConferenceConfigurationAsync(this ConferenceSession session,
   // ConferenceAccessLevel accessLevel, LobbyBypass lobbyBypass,
   // AutomaticLeaderAssignment automaticLeaderAssignment,
   // ModifyConferenceConfigurationOptions options)
   //{
   // return Task.Factory.FromAsync(session.BeginModifyConferenceConfiguration,
   // session.EndModifyConferenceConfiguration, accessLevel, lobbyBypass,
   // automaticLeaderAssignment, options, null);
   //}

   This fails because FromAsync only had max 3 possible args in the generic overloads but you can still call more than 3 by using this notation

   public static Task ModifyConferenceConfigurationAsync(this ConferenceSession session,
   ConferenceAccessLevel accessLevel, LobbyBypass lobbyBypass,
   AutomaticLeaderAssignment automaticLeaderAssignment,
   ModifyConferenceConfigurationOptions options)
   {
   return Task.Factory.FromAsync(
   (callback, state) => session.BeginModifyConferenceConfiguration(
   accessLevel, lobbyBypass,
   automaticLeaderAssignment, options, callback, state), session.EndModifyConferenceConfiguration, null);
   }

   Found a nice little article that explains it…

   http://connect.microsoft.com/VisualStudio/feedback/details/734104/method-system-threading-tasks-task-factory-fromasync-has-insufficient-number-of-overloads

   Thanks for the hard work. Cheers.
   Shannon McCoy

8. 8 Lync Development and Asynchronous Programming - what you need to know | thoughtstuff | Tom Morgan said at 1:31 pm on July 29th, 2014:

   […] even better is that Michael Greenlee has put together a whole collection of extension methods for Lync which you can use. The most […]

9. 9 Connecting IFTTT to Lync - getting IMs when stuff happens | thoughtstuff | Tom Morgan said at 8:23 am on January 31st, 2015:

   […] supports Tasks for asynchronous methods, although they’re not written into the UCMA SDK. Michael Greenlee has written a bunch of the more common Tasks as extension methods though and hosted them on […]

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