Use the BeginSendInitialContext and BeginSendContextData methods to send and update data in existing conversations. For more information, see the topic Send and Update Context in an Existing Conversation .

On the receiver side, use the InitialContextReceived event to access data. See the following sample code.

Copy Code

public void OnInitialContextReceived(Microsoft.Lync.Model.Conversation.Conversation eventSource, Microsoft.Lync.Model.Conversation.ContextEventArgs eventData) { try { string appId = eventData.ApplicationId; string appData = eventData.ApplicationData; Log(Color.Blue, string.Format( "ContextualConversation_OnContextReceived AppId={0}, AppData={1}", appId, appData )); } catch (Exception ex) { Log(ex); } }

On the sender side, use the InitialContextSent event to access data. See the following sample code.

Copy Code

public void OnInitialContextSent(Microsoft.Lync.Model.Conversation.Conversation eventSource, Microsoft.Lync.Model.Conversation.ContextEventArgs eventData) { try { string appId = eventData.ApplicationId; string appData = eventData.ApplicationData; Log(Color.Blue, string.Format( "ContextualConversation_OnContextSent AppId={0}, AppData={1}", appId, appData )); string sourceAppData = eventSource.GetApplicationData(appId); } catch (Exception ex) { Log(ex); } }

Use the GetApplicationData method on the Conversation object to access the most recent initial context. The most recent initial context is what the user has just sent or received using the BeginSendInitialData or BeginStartConversation methods. GetApplicationData does not return any subsequent context sent or received via BeginSendContextData .

Each launch link has data embedded in the launch URL. Clicking the link launches the application with the corresponding application data and fires the ConversationContextLinkClicked event. The LaunchLink appears in the conversation history when a user sends or receives a contextual conversation tied to a contextual application whose registration data contains a Path value. Clicking on the link executes the Path+Parameters values. If there is a %AppData% parameter in the Parameters value it will be replaced with the data embedded in the LaunchLink. The click also fires the LinkClicked event which delivers the application data to the application if it is running, If the application is not running the event will be missed. See the following example.

	Copy Code
public void OnConversationContextLinkClicked(uc.Conversation eventSource, uc.ContextEventData eventData) { try { Log(Color.Blue, string.Format("ContextualConversation_OnLAunchLinkClicked AppId={0}, AppData={1}", eventData.ApplicationId, eventData.ApplicationData )); } catch (Exception ex) { Log(ex); } }