This is my class:

public class tblProdLine : DBModel
{
    //==============================================================================

    [MaxLength(50)]
    public string? Name { get; set; }

    //==============================================================================

    [ForeignKey("Supervisor")]
    public int? SupervisorID { get; set; }

    public virtual tblUser? Supervisor { get; set; }
//==============================================================================
}

in my window, Prodline.SupervisorID is binded to a combobox so when user chooses a new Supervisor, its ID will be in SupervisorID:

    <select @bind="plineModel.SupervisorID" class="form-control">
        <option value="">Choose a user...</option>
        @foreach (var user in UserViewModel.Items)
        {
            <option value="@user.ID">@user.Name</option>
        }
    </select>
(doesn't support binding the Supervisor itself, it freaks out lol)

but as the Supervisor itself isn’t updated, Entity Framework saves the original Supervisor on “Update”.

I though about modifying the setter of the “SupervisorID” inside the Prodline class to update the “Supervisor”, but is that really the only way?