How to set the 'em' or '%' based font size for flowdocument in wpf

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Hi,

I am using flowdocument Reader to view html. Html have em based font size. I am getting an error while parsing it in xaml. Please let me know how to set the set the 'em' or '%' based font size for flowdocument.

Please help.

Thanks and Regards,
Jaya Joshi

Posted 21-Mar-12 2:20am

jaya_11

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Shahin Khorshidnia · Answer 1 · 2012-03-21T02:39:00

Solution 1

if the code doesn't work:

C#

System.Windows.Markup.XamlReader.Parse();

Then try this one:

http://blogs.msdn.com/b/wpfsdk/archive/2006/05/25/606317.aspx[^]

Posted 21-Mar-12 2:39am

Shahin Khorshidnia

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jaya_11 21-Mar-12 8:49am

Thanks for the Reply Shahin.

I am already using the htmltoxaml convertor class. But i am getting the parse exception in this line:

flowDocument = (FlowDocument)XamlReader.Parse(xaml)

Error is: Failed to create fontsize '1.35 em'

Shahin Khorshidnia 21-Mar-12 16:11pm

But it worked for me!
What's your Xaml code?

jaya_11 22-Mar-12 0:21am

The xaml is:

"<flowdocument xml:space="preserve" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
<Paragraph><run fontsize="1.38em">Introduction</Paragraph>
<Paragraph />
<Paragraph>Introduction</Paragraph>
<Paragraph>
Whether you’re a money management novice<run>The Wall<Paragraph />
<flowdocument>"

and getting error:

'Failed to create a 'FontSize' from the text '1.38em'.'

Shahin Khorshidnia 22-Mar-12 7:36am

Wrong code or not complite: Because it's not XAML! It seems a html code.

The parameter of "XamlReader.Parse(..." should be in XAML.
And, If all of the Xaml code is it, then the excpetion can not be "Failed to create fontsize '1.35 em", the exception is "The tag 'Paragraph' does not exist in XML namespace" because there is not any "1.35em" in your code.

jaya_11 22-Mar-12 8:47am

I tried to copy the xaml(converted html to xaml), but its not showing complete xaml. Actually, the line in xaml which throws error is like:

Font size value inside Run tag(in xaml) is 1.35em.

Shahin Khorshidnia 22-Mar-12 9:45am

Ok. Try to Improve your Question and copy the XAML code under your question.

jaya_11 23-Mar-12 0:07am

Hi Shahin,

I tried to copy paste the xaml code but when i submit its not showing complete xaml.

Please try this at your end.

1) Convert any html in which fontsize is 'em' based. like <P style="fontsize: 2.5em;".

2) Convert it to xaml. You will get the same error.

Thanks,
Jaya joshi

Shahin Khorshidnia 23-Mar-12 4:35am

Click on "Improve Question"

Paste your code under the question.

Mark the code.

On menubar, click on code

Select "HTML/XML/ASP"

Then it's showing completly.