Setting a style on a single element

Question

Hello all,

I am trying to apply a style to a single element (in this case, context menu items) but it is not working, I can make the code work for the entire project but just not for the single ContextMenuItems that I want it to apply to:

Please could you tell me where I am going wrong - this code displays 'System.Windows.Style' in my context menu for some reason.

Thanks for any help

    <ContextMenu x:Key="SysTrayMenu">

        <Style TargetType="TextBlock">

            <Style.Triggers>

                <Trigger Property="IsEnabled" Value="False">

                    <Setter Property="TextDecorations" Value="Strikethrough"/>

                </Trigger>

            </Style.Triggers>

        </Style>

        <MenuItem Header="Show Window" Command="{Binding ShowWindowCommand}" />

        <MenuItem Header="Hide Window" Command="{Binding HideWindowCommand}"/>

        <MenuItem Header="Exit" Command="{Binding ExitApplicationCommand}" />

    </ContextMenu>