ContextMenu in Windows Phone project does not appear

Question

I have problem with contextMenu in Windows Phone. It does not appear even in the project which I have downloaded from: http://www.geekchamp.com/articles/wp7-contextmenu-in-depth--part1-key-concepts-and-api When I click the button from the project above nothing happens.

I was searching for the solution but I have not found. Any ideas?

Code sample which doesn't work:

           <Button Content="OpenContextMenu" Height="100" Width="270">
            <toolkit:ContextMenuService.ContextMenu>
                <toolkit:ContextMenu  VerticalOffset="50.0" IsZoomEnabled="True"  x:Name="menu">
                    <toolkit:MenuItem Header="Add"  Click="MenuItem_Click"/>
                    <toolkit:MenuItem Header="Update"  Click="MenuItem_Click"/>
                    <toolkit:MenuItem Header="Delete"  Click="MenuItem_Click"/>
                </toolkit:ContextMenu>
            </toolkit:ContextMenuService.ContextMenu>
        </Button>

Answer 1

正如MatDev8所建议的那样，您需要“按住”以显示上下文菜单。