Over the past few months I have been working on more projects using Windows Presentation Foundation (WPF) and I have run into numerous fun "learning experiences". Of these recent ones prompted me to put up a "Quick Tip" posting. The quick tip in this posting is around the formatting of custom font structures within a WPF TextBlock. Specifically around sub-scripting, super-scripting, and internal font variants.
Standard Markup
Before I get into the specifics of the tip I want to show the types of text I was working with first. Take the following example.
<TextBlock>
The quick brown fox emits CO2 when running
</TextBlock>As you can be assured this would emit exactly as you see it here on the screen.
The desired result
What I was really shooting for in the end was this, The quick brown fox emits CO2 when running.
Searching through WPF documentation was not resulting in much help until I stumbled across the "Run" element that can be used inside of a textblock. Using this you can specify sub-formats for sections of your text. For example:
<TextBlock>
The quick brown fox emits
CO<Run BaselineAlignment="SubScript">2</Run>
when running
</TextBlock>With this, I get my desired effect. Using this you can do a lot more than sub and superscripting. You can make bold sections or many other custom combinations all within a single text block! I hope this was helpful!