Aligning Toolbar Buttons

The following XAML shows how to align the toolbar buttons in the center of the group panel:

<c1:C1ToolbarGroup Header="Group" >

  <c1:C1ToolbarGroup.ItemsPanel>

   <ItemsPanelTemplate>

      <c1:C1ToolbarGroupPanel HorizontalAlignment="Center" />

    </ItemsPanelTemplate>

  </c1:C1ToolbarGroup.ItemsPanel>