Question

This is probably a really stupid question but I can’t figure this out.

I have a page with a MergeDictionary defined:

  <navigation:Page.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="../Assets/TourneySetupStyles.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </navigation:Page.Resources>

and I reference the styles in TourneySetupStyles.xaml in my XAML like this with no problem:

<TextBlock Text="Tourney Name:" Style="{StaticResource TourneySetupTextStyle}" />

However, now I need to add another page resource like this:

But the designer now throws a warning:
“The designer does not support loading dictionaries that mix ‘ResourceDictionary’ items without a key and other items in the same collection. Please ensure that the ‘Resources’ property does not contain ‘ResourceDictionary’ items without a key, or that the ‘ResourceDictionary’ item is the only element in the collection.”

So I add a key to my ResourceDictionary like this:

   <navigation:Page.Resources>
         <local:Tournament x:Key="tournament" />
        <ResourceDictionary x:Key="whatever">
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="../Assets/TourneySetupStyles.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>

    </navigation:Page.Resources>

and the warning goes away. BUT now my reference to the style in TourneySetupStyles no longer works:

“Cannot find a Resource with the Name/Key TourneySetupTextStyle”

So I guess the question is: How do I access the style now that the ResourceDictionary is keyed?

Answer 1

sigh it seems that the order of the declarations is important, as soon as I move the first resource down it now works:

<navigation:Page.Resources>
    <ResourceDictionary x:Key="TourneySetupStyles">
            <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary Source="../Assets/TourneySetupStyles.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    <local:Tournament x:Key="tourneySetupViewModel" />
</navigation:Page.Resources>

If anyone can explain why it would be great for future reference…