private async void DeleteAllNotifications(object sender, EventArgs e)
{
var action = await DisplayActionSheet("Slett alle varsler", "Avbryt", null, "OK");
if (action != null && action == "OK")
{
DbNotification dbNotification = new DbNotification();
dbNotification.DeleteAllNotifications();
}
//Sort();
ExcecuteRefreshCommand();
}
