How to data bind an embedded object with C# Markup

I have an Embedded Model:

 public  class Address: EmbeddedObject
{
    public string Locality { get; set; }
    public string Pin { get; set; }
    public string PostOffice { get; set; }
    public string District { get; set; }
    public string City { get; set; }
    public string State { get; set; }
}

Another RealmObject Model Which have Address Model as a Property:

public class MilkMan : RealmObject
{
[PrimaryKey]
[MapTo(“_partition”)]
public ObjectId MilkManId { get; set; } = ObjectId.GenerateNewId();
public string PreferredLanguage { get; set; } = “English”;
public string Name { get; set; }
public DateTimeOffset DateOfBirth { get; set; }
public string Sex { get; set; } = “Male”;
public Address Address { get; set; }
public IList Incomes { get; set; }
}

Than I initialize the MilkMan Model like this :

MilkManProfile = realm.All().FirstOrDefault();
if (MilkManProfile == null)
{
MilkManProfile = realm.Write(() =>
{
var address = new Address();
var profile = new MilkMan (){ Address=address};
// set properties if necessary
return realm.Add(profile);
});
}

The issue is that Address property of the MilkManProfile remain null even after initializing it.

The Link to the sample project. I noticed that when I bind the Values with XAML it works. But the UI in my app is build with C# markup and causing this issue.

I believe I don’t need to enter the write block . I am binding the Realm Model directly with UI. The MilkManProfile object properties are persisted without write block., except Address Than Address should also save itself without write block as it is a part of MilkManProfile. I am binding the UI like this:

 new Entry{}.Bind(Entry.TextProperty,$"{nameof(vm.MilkManProfile.Address)}.{nameof(vm.MilkManProfile.Address.Locality)}")

As I didn’t define any property in the ViewModel. I don’t have any thing to assign in the write block.

In my sample project I already initialize the Address on MainViewModel:

if (MilkManProfile == null)
        {
            MilkManProfile = realm.Write(() =>
            {
                var address = new Address { };
                var profile = new Profile() { Address = address };
                // set properties if necessary
                return realm.Add(profile);
            });
        }

In the above code block the Address object is already created. Now on SeondViewModel it should update the properties from the UI.

Please show me how to accomplish the persistence of Address. I don’t want a write block but want to update the database directly from the UI.

I added the check on my first ViewModel.

if (MilkManProfile.Address == null)
{
realm.Write(() =>
{
MilkManProfile.Address = new Address() { Locality=“”,Pin=“”};
});
}

Than this line

var place = MilkManProfile.Address;

When I hover the cursor over Address in the above line I get this expression:

I don’t know why Address remain null even after initializing it.But after continuing on from the above line when I hover over the place variable I get this expression:

Is it possible for you to make the necessary changes in the sample project. Then post the correct code over here.

Please go through the below steps:
On MainPage → Click navigation button and navigate to SeondPage → Fill in the Locality and Pin values-> Press BackButton and come back to MainPage. Now when I again go back to SecondPage The locality and pin values are not persisted. Whereas they should persist because the Address is already initialized and both the values are data bound with the Realm Model.

I was binding it incorrectly. I am grateful to you for your patience and support. The correct binding syntax is

Bind(Entry.TextProperty,$"{nameof(vm.MilkManProfile)}.{nameof(vm.MilkManProfile.Address)}.{nameof(vm.MilkManProfile.Address.Locality)}")