How can I ensure my ListView is refreshed in Xamarin? - xamarin

Question

I received some help yesterday. I am still new to c# and using Xamarin Forms with Prism as the MvvM Framework.
I pull data from an API and want to display it in a ListView, the api works and returns data correctly. If I return the data as a List and bind the list, I have to manually update the binding in the XAML (while running the application) in order to view the data in the rows.
I thought I may need to change to an ObservableCollection, but I didn't have much luck with it.
How can I correct this?
I will try to updated the OP with a gif showing my problem.
Here is my model:
public class OpenWorkOrder
{
public int ID { get; set; }
public string WOID { get; set; }
public string AssetNumber { get; set; }
public string WorkRequested { get; set; }
public Nullable<bool> Active { get; set; }
}
Here is the ViewModel:
private List<OpenWorkOrder> _openWO;
public List<OpenWorkOrder> OpenOrders
{
get { return _openWO; }
set { SetProperty(ref _openWO, value); }
}
private string selectedWO;
public string SelectedWO { get => selectedWO; set => SetProperty(ref selectedWO, value); }
private string wOID;
public string WOID { get => wOID; set => SetProperty(ref wOID, value); }
private string iD;
public string ID { get => iD; set => SetProperty(ref iD, value); }
private string workRequested;
public string WorkRequested { get => workRequested; set => SetProperty(ref workRequested, value); }
public async Task<List<OpenWorkOrder>> OpenWO()
{
var client = new RestClient("apiurl/");
var request = new RestRequest("Maint/GetOpenWorkOrders", Method.GET);
IRestResponse<List<OpenWorkOrder>> response = await client.ExecuteAsync<List<OpenWorkOrder>>(request);
if (response.StatusCode.ToString() == "OK")
{
return response.Data;
}
else
{
return null;
}
public async void OnNavigatedTo(INavigationParameters parameters)
{
try { OpenOrders = await OpenWO();
Console.WriteLine("Await Called!");
}
catch (Exception ex)
{
await _dialogService.DisplayAlertAsync("Exception Handled", ex.ToString(), "OK");
}
}
private List<OpenWorkOrder> _openWO;
public List<OpenWorkOrder> OpenOrders
{
get { return _openWO; }
set { SetProperty(ref _openWO, value); }
}
public async Task<List<OpenWorkOrder>> OpenWO()
{
var client = new RestClient("apiurl/");
var request = new RestRequest("Maint/GetOpenWorkOrders", Method.GET);
IRestResponse<List<OpenWorkOrder>> response = await client.ExecuteAsync<List<OpenWorkOrder>>(request);
if (response.StatusCode.ToString() == "OK")
{
return response.Data;
}
else
{
return null;
}
public async void OnNavigatedTo(INavigationParameters parameters)
{
try { OpenOrders = await OpenWO();
Console.WriteLine("Await Called!");
}
catch (Exception ex)
{
await _dialogService.DisplayAlertAsync("Exception Handled", ex.ToString(), "OK");
}
}
Here is the XAML:
<StackLayout Orientation="Horizontal">
<ListView x:Name="Data" ItemsSource="{Binding OpenOrders}"
GroupDisplayBinding="{Binding WOID}"
SelectionMode="Single">
<ListView.Behaviors>
</ListView.Behaviors>
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<StackLayout>
<Label Text="{Binding WorkRequested}" HorizontalOptions="Center"/>
<Label Text="{Binding WOID}"/>
</StackLayout>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</StackLayout>
EDIT: Attached gif here