/// <summary>
/// Returns <paramref name="propertyDefinition"/> property value from Exchange storage <paramref name="item"/>.
/// If property value not reachable, returns default <paramref name="propertyDefinition"/> value.
/// </summary>
/// <typeparam name="T">Return value type.</typeparam>
/// <param name="item"><see cref="Exchange.Item"/> instance.</param>
/// <param name="propertyDefinition"><see cref="Exchange.PropertyDefinition"/> instance.</param>
/// <returns><paramref name="propertyDefinition"/> value from <paramref name="item"/> if value reachable,
/// dafault <paramref name="propertyDefinition"/> value otherwise.</returns>
public static T SafeGetValue <T>(this Exchange.Item item, Exchange.PropertyDefinition propertyDefinition)
{
T value;
item.TryGetProperty(propertyDefinition, out value);
return(value);
}
/// <summary>
/// Returns activity instance.
/// </summary>
/// <param name="context">Synchronization context.</param>
/// <param name="exchangeItem">Sync element in external storage.</param>
/// <param name="localItem">Sync element in local storage.</param>
protected Entity GetActivity(SyncContext context, Exchange.Item exchangeItem, ref LocalItem localItem)
{
Entity instance;
Object localId;
if (exchangeItem.TryGetProperty(ExchangeUtilityImpl.LocalIdProperty, out localId))
{
context.LogInfo(SyncAction.None, SyncDirection.DownloadAndUpload,
"GetActivity use localId action {0} for {1}",
Action, GetDisplayName());
instance = GetSyncedActivityWithChangedRemoteId(context, exchangeItem, Guid.Parse(localId.ToString()), localItem);
}
else
{
context.LogInfo(SyncAction.None, SyncDirection.DownloadAndUpload,
"GetActivity not use localId action {0} for {1}",
Action, GetDisplayName());
instance = GetEntityInstance <Entity>(context, localItem, "Activity");
}
return(instance);
}