WPF automatic resize font until it fits within parent control

Question

I have a user control who\'s root element is a Grid.

I also have have a ContentControl that serves as a placeholder for some text that is filled when data is loaded. Thi

Answer 1

Wrapping your ContentControl in a Viewbox set to only scale down will do this for you:

<Viewbox StretchDirection="DownOnly" Stretch="Uniform">
    <ContentControl Content="Some Text"/>
</Viewbox>