private async Task RefreshShoppingLists()
{
var x = await appModelService.GetAllShoppingLists();
ShoppingLists = null;
ShoppingLists = x;
LoadMainState();
}
public async override void Init(object initData)
{
base.Init(initData);
ShoppingLists = new ObservableCollection <ShoppingList>();
ShoppingLists = await appModelService.GetAllShoppingLists();
ShoppingDetails = new ObservableCollection <ShoppingDetail>();
await RefreshList();
}