how to underline a character of ribbonbutton label?

Question

Is there any way to make a character of ribbon button's label property to underline(underscore) in c# in order to show the access key without using the key tip property.

Eg: If it's a save button then the ribbon button label must be like Save with an underscore or underline below S.

Answer 1

You can use Underline in a TextBlock :

<TextBlock Name="textBlockSave">
  <Underline>S</Underline>ave
</TextBlock>

or,

textBlockSave.Inlines.Add(new Underline(new Run("S")));
textBlockSave.Inlines.Add(new Run("ave"));

Add this textblock textBlockSave as Button Content.