private async Task LoadAllAsync(HttpQueryDispatcher dispatcher, HttpQueryDispatcher.Next next, ListUserProperty listAll)
{
models.Clear();
if (!serverConnection.IsAvailable)
{
var items = await localStorage.LoadAsync();
if (items != null)
{
models.AddRange(items);
return;
}
}
if (dispatcher != null)
{
await dispatcher.QueryAsync(listAll);
}
else
{
models.AddRange((List <UserPropertyModel>) await next(listAll));
await localStorage.SaveAsync(models);
}
}
private async Task EnsureListAsync(HttpQueryDispatcher dispatcher, HttpQueryDispatcher.Next next, ListUserProperty listAll)
{
if (models.Count == 0)
{
if (listAllTask == null)
{
listAllTask = LoadAllAsync(dispatcher, next, listAll);
}
try
{
await listAllTask;
}
finally
{
listAllTask = null;
}
}
}
