title: ScrollViewer XAML : MouseWheel Not Working
body: <p>I'm developing an application for a small business and I have a problem with the Horizontal Scroll Viewer.</p>
  
  <p>Horizontal ScrollViewer appears on the screen but the mouse wheel doesn't work.</p>
  
  <p>I Have this XAML Code:</p>
  
  <pre><code>&lt;ScrollViewer ScrollViewer.ZoomMode="Disabled" HorizontalScrollMode="Auto" HorizontalScrollBarVisibility="Auto" ScrollViewer.IsHorizontalScrollChainingEnabled="True" VerticalScrollBarVisibility="Disabled" Margin="0,130,0,0" VerticalContentAlignment="Stretch" ManipulationMode="All"&gt;
         &lt;Grid Width="1000" HorizontalAlignment="Left" &gt;
             &lt;Grid.ColumnDefinitions&gt;
                 &lt;ColumnDefinition Width="250*" &gt;&lt;/ColumnDefinition&gt;
                 &lt;ColumnDefinition Width="250*"/&gt;
                 &lt;ColumnDefinition Width="250*"/&gt;
                 &lt;ColumnDefinition Width="250*"/&gt;
             &lt;/Grid.ColumnDefinitions&gt;
             &lt;Grid.RowDefinitions&gt;
                 &lt;RowDefinition Height="65*" /&gt;
                 &lt;RowDefinition Height="45*"/&gt;
                 &lt;RowDefinition Height="45*"/&gt;
                 &lt;RowDefinition Height="45*"/&gt;
                 &lt;RowDefinition Height="45*"/&gt;
                 &lt;RowDefinition Height="45*"/&gt;
                 &lt;RowDefinition Height="45*"/&gt;
                 &lt;RowDefinition Height="45*"/&gt;
                 &lt;RowDefinition Height="45*"/&gt;
                 &lt;RowDefinition Height="45*"/&gt;
                 &lt;RowDefinition Height="45*"/&gt;
                 &lt;RowDefinition Height="45*"/&gt;
                 &lt;RowDefinition Height="45*"/&gt;
             &lt;/Grid.RowDefinitions&gt;
             &lt;TextBlock Grid.Column="0" Grid.Row="0" Grid.ColumnSpan="2" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="20,0,0,0" Text="Στοιχεία Πελάτη" FontSize="50"&gt;&lt;/TextBlock&gt;
             &lt;TextBlock Grid.Column="0" Grid.Row="1" HorizontalAlignment="Right" VerticalAlignment="Center" Text="Όνομα :" FontSize="30"&gt;&lt;/TextBlock&gt;
             &lt;TextBlock Grid.Column="0" Grid.Row="2" HorizontalAlignment="Right" VerticalAlignment="Center" Text="Επώνυμο :" FontSize="30"&gt;&lt;/TextBlock&gt;
             &lt;TextBlock Grid.Column="0" Grid.Row="3" HorizontalAlignment="Right" VerticalAlignment="Center" Text="Τηλέφωνο :" FontSize="30"&gt;&lt;/TextBlock&gt;
             &lt;TextBlock Grid.Column="0" Grid.Row="4" HorizontalAlignment="Right" VerticalAlignment="Center" Text="Κινητό :" FontSize="30"&gt;&lt;/TextBlock&gt;
             &lt;TextBlock Grid.Column="0" Grid.Row="5" HorizontalAlignment="Right" VerticalAlignment="Center" Text="Διεύθυνση :" FontSize="30"&gt;&lt;/TextBlock&gt;
             &lt;TextBlock Grid.Column="0" Grid.Row="6" HorizontalAlignment="Right" VerticalAlignment="Center" Text="Πόλη :" FontSize="30"&gt;&lt;/TextBlock&gt;
             &lt;TextBlock Grid.Column="2" Grid.Row="1" HorizontalAlignment="Right" VerticalAlignment="Center" Text="Χώρα :" FontSize="30"&gt;&lt;/TextBlock&gt;
             &lt;TextBlock Grid.Column="2" Grid.Row="2" HorizontalAlignment="Right" VerticalAlignment="Center" Text="Email :" FontSize="30"&gt;&lt;/TextBlock&gt;
             &lt;TextBlock Grid.Column="2" Grid.Row="3" HorizontalAlignment="Right" VerticalAlignment="Center" Text="Α.Φ.Μ :" FontSize="30"&gt;&lt;/TextBlock&gt;
             &lt;TextBlock Grid.Column="2" Grid.Row="4" HorizontalAlignment="Right" VerticalAlignment="Center" Text="ΔΟΥ:" FontSize="30"&gt;&lt;/TextBlock&gt;
             &lt;TextBlock Grid.Column="2" Grid.Row="5" HorizontalAlignment="Right" VerticalAlignment="Center" Text="Περιγραφή:" FontSize="30"&gt;&lt;/TextBlock&gt;
             &lt;TextBox Grid.Column="1" Grid.Row="1" Height="30"&gt;&lt;/TextBox&gt;
             &lt;TextBox Grid.Column="1" Grid.Row="2" Height="30"&gt;&lt;/TextBox&gt;
             &lt;TextBox Grid.Column="1" Grid.Row="3" Height="30"&gt;&lt;/TextBox&gt;
             &lt;TextBox Grid.Column="1" Grid.Row="4" Height="30"&gt;&lt;/TextBox&gt;
             &lt;TextBox Grid.Column="1" Grid.Row="5" Height="30"&gt;&lt;/TextBox&gt;
             &lt;TextBox Grid.Column="1" Grid.Row="6" Height="30"&gt;&lt;/TextBox&gt;
             &lt;TextBox Grid.Column="3" Grid.Row="1" Height="30"&gt;&lt;/TextBox&gt;
             &lt;TextBox Grid.Column="3" Grid.Row="2" Height="30"&gt;&lt;/TextBox&gt;
             &lt;TextBox Grid.Column="3" Grid.Row="3" Height="30"&gt;&lt;/TextBox&gt;
             &lt;TextBox Grid.Column="3" Grid.Row="4" Height="30" VerticalAlignment="Center"&gt;&lt;/TextBox&gt;
             &lt;TextBox Grid.Column="3" Grid.Row="5" Grid.RowSpan="4" AcceptsReturn="True" TextWrapping="Wrap" ScrollViewer.VerticalScrollBarVisibility="Visible"/&gt;
             &lt;Button Grid.Column="3" Grid.Row="9" Content="Αποθήκευση" FontSize="22" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"&gt;&lt;/Button&gt;
        &lt;/Grid&gt;
     &lt;/ScrollViewer&gt;
  </code></pre>
  
  <p>What could be wrong?</p>