How to populate the items dynamically in suggestionlist in SfAutoComplete

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
          xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
          xmlns:local="clr-namespace:AutoComplete"
          xmlns:auto="clr-namespace:Syncfusion.SfAutoComplete.XForms;assembly=Syncfusion.SfAutoComplete.XForms"
          x:Class="AutoComplete.MainPage">
 
    <ContentPage.Content>
        <StackLayout>
            <autocomplete:SfAutoComplete x:Name="AutoComplete" 
                                     DataSource="{Binding AutoCompleteItems,Mode=TwoWay}" 
                                     SelectionChanged="AutoComplete_OnSelectionChanged" 
                                     DisplayMemberPath="Label" 
                                     SelectedValuePath="Id"
                                     ValueChanged="AutoComplete_OnValueChanged" 
                                     Watermark="test"/>
        </StackLayout>
    </ContentPage.Content>
</ContentPage>
 

namespace AutoComplete
{
public class AutoCompleteItem
{
    public int Id { get; set; }
    public string Label { get; set; }
}
 
public partial class MainPage : ContentPage
{
    private SfAutoCompletePageViewModel context;
    public MainPage()
    {
        InitializeComponent();
        context = new SfAutoCompletePageViewModel();
        BindingContext = context;
    }
 
    private void AutoComplete_OnSelectionChanged(object sender, Syncfusion.SfAutoComplete.XForms.SelectionChangedEventArgs e)
    {
        var value = (e?.Value as AutoCompleteItem)?.Label;
        if (string.IsNullOrEmpty(value)) return;
    }
 
    private void AutoComplete_OnValueChanged(object sender, Syncfusion.SfAutoComplete.XForms.ValueChangedEventArgs e)
    {
        var text = e?.Value;
        if (string.IsNullOrEmpty(text)) return;
 
        context?.RefreshAutoCompleteDataSourceItems(text);
    }
}
}

namespace AutoComplete
{
public class SfAutoCompletePageViewModel : INotifyPropertyChanged
{
    #region INotifyPropertyChanged Implementation
 
    public event PropertyChangedEventHandler PropertyChanged;
 
    void OnPropertyChanged([CallerMemberName] string propertyName = "")
    {
        if (PropertyChanged == null) return;
 
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }
 
    #endregion
 
    private ObservableCollection<AutoCompleteItem> autoCompleteItems;
 
    public ObservableCollection<AutoCompleteItem> AutoCompleteItems { get { return autoCompleteItems; } set { autoCompleteItems = value; OnPropertyChanged(); } }
 
    public SfAutoCompletePageViewModel()
    {
        AutoCompleteItems = new ObservableCollection<AutoCompleteItem>()
        {
            new AutoCompleteItem()
            {
                Id = 1,
                Label = "salut"
            }
        };
    }
 
    public async Task RefreshAutoCompleteDataSourceItems(string text)
    {
        var items = new ObservableCollection<AutoCompleteItem>();
        for (int i = 0; i < 10; i++)
        {
            items.Add(new AutoCompleteItem()
            {
                Id = i,
                Label = text + i
            });
        }
 
        AutoCompleteItems = items;
    }
}
}