Location: BlogsRob Tuch
Posted by: RobTuch	1/10/2008 5:32 PM
You may encounter an unpleasant surprise when editing FlowDocument XAML (see http://msdn2.microsoft.com/en-us/library/aa970786.aspx for background on FlowDocument content). If in, the FlowDocument XAML that follows, you attempt to insert a TextBlock (or any element not inline-derived) between the Run-element lines (Line 1 Line 2) then Visual Studio will just vanish without warning.   Expression Blend does not quit, but it does not complain about a TextBlock as an invalid child of a Paragraph...    <Window x:Class="Window1"     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     Title="Window1" Height="300" Width="300">     <Grid>         <RichTextBox Margin="10,10,12,13" Name="RichTextBox1" >             <FlowDocument>                 <Paragraph>                     <Run>Line 1</Run>                     <Run>Line 2</Run>                 </Paragraph>                 <BlockUIContainer>                     <TextBlock></TextBlock>                 </BlockUIContainer>             </FlowDocument>         </RichTextBox>     </Grid> </Window>
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