public async Task UpdateAsync(MessageItem messageItem)
{
var target = (from m in _messageItems
where m.ID == messageItem.ID
select m).FirstOrDefault();
if (target != null)
{
int idx = _messageItems.IndexOf(target);
_messageItems.Remove(target);
_messageItems.Insert(idx, messageItem);
}
await PersistAsync();
}
private void DeliverToast(MessageItem msgItem)
{
// Send the Toast Notification informing the user of a new message
ToastTemplateType toastTemplate = ToastTemplateType.ToastImageAndText01;
XmlDocument toastXml = ToastNotificationManager.GetTemplateContent(toastTemplate);
XmlNodeList toastTextElements = toastXml.GetElementsByTagName("text");
toastTextElements[0].AppendChild(toastXml.CreateTextNode(msgItem.Title));
IXmlNode toastNode = toastXml.SelectSingleNode("/toast");
((XmlElement)toastNode).SetAttribute("launch", "{\"type\":\"toast\",\"param1\":\"" + msgItem.ID + "\",\"param2\":\"0\"}");
ToastNotification toast = new ToastNotification(toastXml);
// Tag the Toast with the data item ID
// Note that Toasts sent from servers set the Tag through an HTTP Header
toast.Tag = msgItem.ID;
ToastNotificationManager.CreateToastNotifier().Show(toast);
}
public async Task AddAsync(MessageItem messageItem)
{
_messageItems.Add(messageItem);
await PersistAsync();
}