Not displaying items from Cosmos db - xamarin.forms

Question

I have issuse with my display method. I have been following tutorial on MSToDo items for xamarin. https://github.com/Azure-Samples/azure-cosmos-db-sql-xamarin-getting-started
I am able to insert in the database so i know it works but cant get anything out of the database. Can you help me please?
this is my get method
static DocumentClient docClient = null;
static readonly string databaseName = "xxxxx";
static readonly string collectionName = "xxxxx";
static bool Initialize() //connection
{
if (docClient != null)
return true;
try
{
docClient = new DocumentClient(new Uri(AppConstants.CosmosEndpointUrl), AppConstants.CosmosAuthKey);
}
catch (Exception ex)
{
Debug.WriteLine(ex);
docClient = null;
return false;
}
return true;
}
public async static Task<List<Post>> GetPosts()
{
var posts = new List<Post>();
if (! Initialize())
return posts;
var postQuery = docClient.CreateDocumentQuery<Post>(
UriFactory.CreateDocumentCollectionUri(databaseName, collectionName),
new FeedOptions { MaxItemCount = 1, EnableCrossPartitionQuery = true })
.OrderBy(i => i.Date)
.AsDocumentQuery();
while (postQuery.HasMoreResults)
{
var queryResults = await postQuery.ExecuteNextAsync<Post>();
posts.AddRange(queryResults);
}
return posts;
}
public class PostViewModel : BaseViewModel
{
List<Post> posts;
public PostViewModel()
{
Posts = new List<Post>();
RefreshCommand = new Command(async () => await ExecuteRefreshCommand());
}
private PostViewModel _selectedAd;
//private ObservableCollection<Post> _posts;
public List<Post> Posts { get => posts; set { posts = value; OnPropertyChanged(); } }
public ICommand RefreshCommand { get; }
async Task ExecuteRefreshCommand()
{
if (IsBusy) return;
IsBusy = true;
try
{
Posts = await AdService.GetPosts();
}
finally
{
IsBusy = false;
}
}
}
HOmePage
PostViewModel postViewModel;
public HomePage()
{
InitializeComponent();
postViewModel = new PostViewModel();
BindingContext = postViewModel;
}
protected override void OnAppearing()
{
base.OnAppearing();
postViewModel.RefreshCommand.Execute(null);
}
And my xaml
<ListView
ItemsSource="{Binding Posts}" x:Name="AdLogListView"
ItemTemplate="{StaticResource HomePageTemplate}"
SelectionMode="Single" Margin="12,0">

Answer 1

The Binding Source Path should be Posts and not Post. Your modified xaml would be:-
<ListView
ItemsSource="{Binding Posts}" x:Name="AdLogListView"
ItemTemplate="{StaticResource HomePageTemplate}"
SelectionMode="Single" Margin="12,0">