Preserving whitespace in Run element

Question

When formatting a paragraph as so -
<RichTextBlock><Paragraph xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'>
<Run></Run>
<InlineUIContainer><TextBlock >Words here</TextBlock></InlineUIContainer>
<Run xml:space="preserve"> </Run>
<InlineUIContainer><TextBlock>More words here</TextBlock></InlineUIContainer>
<Run xml:space="preserve"> Lastly some words here</Run>
</Paragraph>
</RichTextBlock>
The <Run> element containing a single space is never displayed and ignore the space=preserve property. However the last run with a leading space is displayed correctly.
How can I get a run containing a single space to display ?

Answer 1

Hi BradStevenson,
You can see the whitespace working principle in XAML from
http://msdn.microsoft.com/en-us/library/windows/apps/xaml/hh758290.aspx.
As we can see, “A space immediately following the start tag is deleted.”
it should be removed by the system. But when we add whitespace before other characters, I think it is used as a string, because “If the type of the property is Object, then the inner text is parsed as a single String. If there are intervening element
tags, this results in a XAML parser error, because the Object type implies a single object (String or otherwise).” When whitespace in inner text. You can find these explanation from the above link.
So if you want to preserve the whitespace, use whitespace in string and make the system considering it as inner text.
Feel free to let me know if you have any concerns.
Regards,
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