diff --git a/samples/Avalonia.Labs.Catalog/ViewModels/QrViewModel.cs b/samples/Avalonia.Labs.Catalog/ViewModels/QrViewModel.cs
index cf43861..adc8c92 100644
--- a/samples/Avalonia.Labs.Catalog/ViewModels/QrViewModel.cs
+++ b/samples/Avalonia.Labs.Catalog/ViewModels/QrViewModel.cs
@@ -4,6 +4,8 @@
 using Avalonia.Media;
 using Avalonia.Labs.Qr;
 using ReactiveUI;
+using System.Collections.ObjectModel;
+using static Avalonia.Labs.Qr.QrCode;
 
 namespace Avalonia.Labs.Catalog.ViewModels
 {
@@ -80,6 +82,8 @@ public Color QrCodeBackgroundColor2
             set => this.RaiseAndSetIfChanged(ref _qrCodeBackgroundColor2, value);
         }
 
+        public ObservableCollection<EccLevel> Levels { get; }
+
         static QrViewModel()
         {
             ViewLocator.Register(typeof(QrViewModel), () => new QrView());
@@ -89,6 +93,8 @@ public QrViewModel()
         {
             ResetQrCode();
             Title = "Qr Generator";
+
+            Levels = new ObservableCollection<EccLevel>(Enum.GetValues<EccLevel>());
         }
 
         public void UpdateQrCode(string text)
@@ -113,9 +119,14 @@ public void RandomizeColors()
 
             QrCodeBackgroundColor1 = Color.FromRgb(newColors[6], newColors[7], newColors[8]);
             QrCodeBackgroundColor2 = Color.FromRgb(newColors[9], newColors[10], newColors[11]);
+
+            var cuurentCode = QrCodeString;
+            QrCodeString = string.Empty;
+
+            UpdateQrCode(cuurentCode);
         }
 
-        private void ResetQrCode()
+        public void ResetQrCode()
         {
             QrCodeEccLevel = QrCode.EccLevel.Medium;
 
diff --git a/samples/Avalonia.Labs.Catalog/Views/QrView.axaml b/samples/Avalonia.Labs.Catalog/Views/QrView.axaml
index f873bc1..e586096 100644
--- a/samples/Avalonia.Labs.Catalog/Views/QrView.axaml
+++ b/samples/Avalonia.Labs.Catalog/Views/QrView.axaml
@@ -60,6 +60,7 @@
                VerticalAlignment="Center"/>
         <ComboBox Name="EccLevelComboBox"
                   Width="{Binding QrCodeSize}"
+                  ItemsSource="{Binding Levels}"
                   SelectedItem="{Binding QrCodeEccLevel, Mode=TwoWay}" />
       </StackPanel>
 
@@ -67,14 +68,14 @@
                   Orientation="Horizontal"
                   Spacing="10">
         <Button Content="Randomize Data"
-                Command="{Binding RandomizeDataCommand}" />
+                Command="{Binding RandomizeData}" />
         <Button Content="Randomize Colors"
-                Command="{Binding RandomizeColorsCommand}" />
+                Command="{Binding RandomizeColors}" />
       </StackPanel>
 
       <Button Content="Reset QRCode"
               HorizontalAlignment="Center"
-              Command="{Binding ResetQrCodeCommand}" />
+              Command="{Binding ResetQrCode}" />
     </StackPanel>
   </Panel>
 </UserControl>