Reference Manual
Commands
U

U

Underline text.

Child elements

A, Action, B, Br, CopyOf, HTML, I, Ol, Span, U, Ul, Value

Parent elements

A, B, I, Li, Paragraph, Span, U

Attributes

class (text, optional)
CSS class for this element.
id (text, optional)
CSS id for this element.
style (text, optional)
CSS style for this element.

Example 

<TextBlock>
  <Paragraph>
    <U><Value>underlined text</Value></U>
  </Paragraph>
</TextBlock>

See also

TraceUl