How to fetch and populate data using ODataV4 in Xamarin.Forms DataGrid (SfDataGrid)?

public class ResultsPage : ContentPage
    {
        IEnumerable<Package> packages;
        SfDataGrid dataGrid;
        ActivityIndicator activityIndicator;
        public ResultsPage()
        {
            Title = "Search Results";
 
            NavigationPage.SetHasNavigationBar(this, true);
 
            var stackLayout = new StackLayout() { VerticalOptions = LayoutOptions.FillAndExpand };
 
            if (Device.OS == TargetPlatform.WinPhone)
            {
                // WinPhone doesn't have the title showing
                stackLayout.Children.Add(new Label { Text = Title, Font = Font.SystemFontOfSize(50) });
            }
 
            var searchButton = new Button() { Text = "Get Data" };
            searchButton.Clicked += async (sender, e) =>
            {
                try
                {
                    activityIndicator.IsVisible = true;
                    packages = await GetPackages();
                    if (packages != null)
                        SetSource();
                    activityIndicator.IsVisible = false;
                }
                catch(Exception)
                {
                    await DisplayAlert("Error","Connect to the internet and try again..!","OK");
                    activityIndicator.IsVisible = false;
                }
            };
 
            var grid = new Grid();
            activityIndicator = new ActivityIndicator();
            activityIndicator.HeightRequest = 100;
            activityIndicator.HorizontalOptions = LayoutOptions.Center;
            activityIndicator.VerticalOptions = LayoutOptions.Center;
            activityIndicator.IsEnabled = true;
            activityIndicator.IsRunning = true;
            activityIndicator.IsVisible = false;
 
            dataGrid = new SfDataGrid();
            dataGrid.ColumnSizer = ColumnSizer.Auto;
            dataGrid.GridTapped += (sender, e) =>
            {
                var package = (PackageViewModel)e.RowData;
                var detailsPage = new DetailsPage();
                detailsPage.BindingContext = package;
                Navigation.PushAsync(detailsPage);
            };
 
            grid.Children.Add(activityIndicator);
            grid.Children.Add(dataGrid);
            stackLayout.Children.Add(searchButton);
            stackLayout.Children.Add(grid);
 
            this.Content = stackLayout;
        }
 
        private void SetSource()
        {
            var results = packages.Select(x => new PackageViewModel(x));
            dataGrid.ItemsSource = results;
        }
 
        private async Task<IEnumerable<Package>>  GetPackages()
        {
            var odataClient = new ODataClient("https://nuget.org/api/v1");
            var command = odataClient
                .For<Package>("Packages")
                .OrderByDescending(x => x.DownloadCount)
                .Top(2);
 
            command.OrderBy(x => x.Id);
            command.Filter(x => x.Title.Contains("Xamarin") && x.IsLatestVersion);
            command.Select(x => new { x.Id, x.Title, x.Version, x.LastUpdated, x.DownloadCount, x.VersionDownloadCount, x.PackageSize, x.Authors, x.Dependencies });
 
            return await command.FindEntriesAsync();
        }
    }