xamarin.forms join query on azure sql database - sql

Question

I have created a Xamarin.Forms app in Visual Studio that connects to an Azure SQL Database via an Azure Mobile App. So far everything is working fine - I can do CRUD operations on the database from my Xamarin App.
However I have not yet been able to perform an inner join query on two or more tables.
I have created one such query in a View on the Database, and it works ok on the server, but my problem is that I do not know how to connect to this View from the Xamarin.Forms app.
I would really appreciate any help :-)
Thank you!
XAMARIN.FORMS SERVICE CLASS FOR A GENERIC AZURE TABLE:
public class service<T> : serviceBase<T> where T : irlm.azure.models.modelBase
{
public async Task<ObservableCollection<T>> get()
{
var items = await table.ToEnumerableAsync();
return new ObservableCollection<T>(items);
}
public async Task<T> update(T item)
{
if (item.Id == null)
await table.InsertAsync(item);
else
await table.UpdateAsync(item);
return item;
}
public async Task delete(T item)
{
await table.DeleteAsync(item);
}
}
public abstract class serviceBase<T>
{
MobileServiceClient dc;
public IMobileServiceTable<T> table;
public serviceBase()
{
dc = new MobileServiceClient(irlm.constants.appUrl);
table = dc.GetTable<T>();
}
}
XAMARIN.FORMS MODEL EXAMPLE
public abstract class modelBase
{
public string Id { get; set; }
}
public class golfClub : modelBase
{
public string name { get; set; }
}
public class golfCourse : modelBase
{
public string idClub { get; set; }
public string name { get; set; }
}
XAMARIN.FORMS VIEWMODEL:
public class viewModel<T> : INotifyPropertyChanged
{
private ObservableCollection<T> _items = new ObservableCollection<T>();
public ObservableCollection<T> items
{
get { return _items; }
set
{
_items = value;
OnPropertyChanged();
}
}
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
}
CONTENT PAGE:
irlm.azure.viewModels.viewModel<irlm.azure.models.golfClub> golfClubs = new azure.viewModels.viewModel<azure.models.golfClub>();
irlm.azure.services.service<irlm.azure.models.golfClub> dc = new azure.services.service<azure.models.golfClub>();
ListView list;
Entry txt = new Entry();
private async void BtnAdd_Clicked(object sender, EventArgs e)
{
var golfCourse = await dc.update(new irlm.azure.models.golfClub { name = txt.Text });
golfClubs.items.Add(golfCourse);
}
private async void BtnUpdate_Clicked(object sender, EventArgs e)
{
var index = golfClubs.items.IndexOf(list.SelectedItem as irlm.azure.models.golfClub);
var item = (irlm.azure.models.golfClub)list.SelectedItem;
item.name = txt.Text;
await dc.update(item);
golfClubs.items[index] = item;
}
private async void BtnRemove_Clicked(object sender, EventArgs e)
{
var item = (irlm.azure.models.golfClub)list.SelectedItem;
await dc.delete(item);
golfClubs.items.Remove((irlm.azure.models.golfClub)list.SelectedItem);
txt.Text = "";
}