void OnLasted_StateChanged(object sender, Syncfusion.XForms.Buttons.StateChangedEventArgs e)
 {
     if (lastedProducts.IsChecked == true)
     {
         ProductFilters.Instance.SortingType = SortingType.Lasted;
         SendMessage();
     }
 }
 void OnProductCodeDescending_StateChanged(object sender, Syncfusion.XForms.Buttons.StateChangedEventArgs e)
 {
     if (productCodeDescending.IsChecked == true)
     {
         ProductFilters.Instance.SortingType = SortingType.ProductCodeDescending;
         SendMessage();
     }
 }