WPF XAML string interpolation - wpf

Question

I'm struggling to achieve string interpolation in Setter of the TextBlock in XAML.
I have a string with a {0} inside and want this "tag" to be replaced by some text. I'd use Multibinding and break my message into parts, but my app should be translated to other languages. For example, I have message like "Das Verzeichnis {0} wurde nicht gefunden" which due to semantics of different languages may look different, for example "The following path could nont been found: {0}". Sure, in this case I still can paraphrase it and then break into 3 parts to give a proper StringFormat to the Multibinding, but there is no guarantee it will work, let's say in Japanese. I also can't use multiple Runs, since Setter only receives one value.
Is there a way to get something similar to string.Format() in XAML?
UPD: Code:
<DataTrigger Binding="{Binding State}" Value="{x:Static vm:StatesEnum.UnknownError}">
<Setter Property="Visibility" Value="Visible" />
<Setter Property="Text" Value="{Binding to resource string}" />
</DataTrigger>
UPD2: I wrote a simple converter, that makes all that stuff with string formatting. However, Binding seems to be tricky. XAML code below illustrates my problem. I need to bind to the whole DataContext of it, because State from the DataTrigger (first listing) is not sufficient for the text I want, I need some other fields from the bound object.
<Style x:Key="ImageErrorTextStyle" TargetType="{x:Type TextBlock}">
<Setter Property="Text" Value="{Binding Path=???, Converter={StaticResource ImageToError}}" />
</Style>
However, as I found out, use of converter does not allow use of {Binding} (without Path=some_field). Leaving Path empty is allowed, but in this case Convert is only called once (probably creation or initialization of DataContext). The problem is, that the DataContext is declared in code behind and lies in collection, which is not bound to anything, so I have to apply this converter either in code behind or via setters in style. How can I bind Converter to the {Binding} or maybe there is another way of accessing the whole bound object?

Answer 1

Maybe you can try this :)
<DataTrigger Binding="{Binding State}" Value="{x:Static vm:StatesEnum.UnknownError}">
<Setter Property="Visibility" Value="Visible" />
<Setter Property="Text">
<Setter.Value>
<MultiBinding StringFormat="{}{0}{1}">
<Binding Path="" Converter=""/>
<Binding Path="" Converter=""/>
</MultiBinding>
</Setter.Value>
</Setter>
</DataTrigger>