将ChangeCollection类型更改为约会类型EWS

Question

I am doing syncing using Exchange server web services(EWS). TO do sync need to identify change items in Calendar after last sync. To do that this link help you a lot. While using that i need to take appointment start,end etc...

ChangeCollection<ItemChange> allExchEvents = service.SyncFolderItems(new FolderId(WellKnownFolderName.Calendar), PropertySet.FirstClassProperties, null, 512, SyncFolderItemsScope.NormalItems, sSyncState);   

How could i convert this change events to Appointment type ?

Answer 1

After looking at MSDN document and some blogs I found the answer.

 ChangeCollection<ItemChange> icc = service.SyncFolderItems(new FolderId(WellKnownFolderName.Calendar), PropertySet.FirstClassProperties, null, 512, SyncFolderItemsScope.NormalItems, sSyncState);
 sSyncState = icc.SyncState;

 if (icc.Count == 0)
 {
   Console.WriteLine("There are no item changes to synchronize.");
 }
 else
 {        
   foreach (ItemChange ic in icc)
   {
     **Appointment ap = (Appointment)ic.Item;**
   }
 }

Use "ap" object to retrieve appointment inner properties.