Append WPF resource strings

Question

I want to append two static strings for a single content or header of a WPF object. Something like this:

<MenuItem 
    Header="{x:Static properties:Resources.SEARCH_FOR_DAYS} + 
            {x:Static properties:Resources.ELLIPSES}" /> 

I've played around with ContentStringFormat and the like but can't get it to accept two resources.

Answer 1

<MenuItem>
    <MenuItem.Header>
        <StackPanel Orientation="Horizontal">
            <TextBlock Text="{x:Static properties:Resources.SEARCH_FOR_DAYS}" />
            <TextBlock Text="{x:Static properties:Resources.ELLIPSES}" />
        </StackPanel>
    </MenuItem.Header>
</MenuItem>

Alternatively (closer to what you requested):

<MenuItem>
    <MenuItem.Header>
        <MultiBinding StringFormat="{}{0}{1}">
            <Binding Path="{x:Static properties:Resources.SEARCH_FOR_DAYS}"/>
            <Binding Path="{x:Static properties:Resources.ELLIPSES}"/>
        </MultiBinding>
    </MenuItem.Header>
</MenuItem>