EF core get data that updated out of the dbcontext

See more:

C#

SQL

WinForms

entity-framework

I have this code in my "Department Form"

private readonly SIMContext _SIMContext;
private Department model;
public Frm_Department(SIMContext SIMContext)
{
    InitializeComponent();
    _SIMContext = SIMContext;
}

And this is the method that get data from database I added to load event
I have BindingSource component "dataBindingSource" that assign to gridControl DataSource

private async Task LoadDataAsync()
{
        // Call the LoadAsync method to asynchronously get the data for the given DbSet from the database.
        await _SIMContext.Departments.LoadAsync().ContinueWith(loadTask =>
        {
            // Bind data to control when loading complete
            dataBindingSource.DataSource = _SIMContext.Departments.Local.ToBindingList();
        }, TaskScheduler.FromCurrentSynchronizationContext());

}

all my CRUD operations work fine (using DbContext).
Now to the problem:
If I add records directly(Manually) to the database (not using DbContext) and if I call LoadDataAsync method I get all records without any problem.
But when I edit or remove any record(Manually) (not using DbContext) and then call LoadDataAsync method I get old values not updated one.
How can I resolve this problem?.
I am using EF Core 3.1.15 with .Net 4.7.2

Update:
This is my DbContext class

public partial class SIMContext : DbContext
    {
        public SIMContext()
        {
        }
        public SIMContext(DbContextOptions<SIMContext> options)
            : base(options)
        {
        }
        public virtual DbSet<Department> Departments { get; set; }
        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            optionsBuilder.UseSqlServer(ConfigurationManager.ConnectionStrings["SIMContext"].ConnectionString);
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);
            modelBuilder.ApplyConfiguration(new DepartmentConfiguration());
        }

       
    }

and this is how I inject DbContext using AutoFac

static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        public static IContainer Container;
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Container = Configure();
            Application.Run(new XtraMain(Container.Resolve<SIMContext>()));
        }
        static IContainer Configure()
        {
            var builder = new ContainerBuilder();
            builder.RegisterType<SIMContext>().AsSelf();
            builder.RegisterType<XtraMain>();
            return builder.Build();
        }
    }

And This is the main form:

public partial class XtraMain : DevExpress.XtraBars.Ribbon.RibbonForm
    {
        private readonly SIMContext _SIMContext;
        public XtraMain(SIMContext SIMContext) 
        {
            InitializeComponent();
            _SIMContext = SIMContext;
        }
        private void bbtnDepartment_ItemClick(object sender, ItemClickEventArgs e)
        {
            Frm_Department frme = new(_SIMContext)
            {
                Name = "Frm_Department"

            };
            ViewChildForm(frme);
        }
    }

What I have tried:

dataBindingSource.ResetBindings(false);

var state = _SIMContext.Entry(model).State;
state = EntityState.Modified;