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White space is not wrapping in Flow Layout Mode

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RichTextBox

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Michael asked on 02 Dec 2010, 08:05 PM

So while testing my code, I noticed that if I type a random string of characters into the text box, it wraps as it should, but if I type just white space it will continue on the same line indefinitely, until I type some non whitespace character, which then wraps to the other side. After doing so, I also loose all my default page margins. I replicated the issue in a small solution. It's below.

The Xaml

<UserControl x:Class="RichTextBoxTest.MainPage"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:Controls="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Documents" xmlns:telerikNavigation="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Navigation" xmlns:dHTML="clr-namespace:Telerik.Windows.Documents.FormatProviders.Html;assembly=Telerik.Windows.Documents.FormatProviders.Html" mc:Ignorable="d"

d:DesignHeight="300" d:DesignWidth="400">

<UserControl.Resources>

<dHTML:HtmlDataProvider x:Key="xamlDataProvider"

RichTextBox="{Binding ElementName=_rrtbMessage}"

SetupDocument="SetupMessage"/>

</UserControl.Resources>

<Controls:RadRichTextBox x:Name="_rrtbMessage" HorizontalAlignment="Stretch" Margin="200,100,200,100" VerticalAlignment="Stretch" BorderThickness="1" Background="White" IsSelectionMiniToolBarEnabled="False" DocumentInheritsDefaultStyleSettings="True" FontSize="11" BorderBrush="Black" />

</Grid>

</UserControl>

<UserControl x:Class="RichTextBoxTest.MainPage"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

d:DesignHeight="300" d:DesignWidth="400">

<UserControl.Resources>

<dHTML:HtmlDataProvider x:Key="xamlDataProvider"

RichTextBox="{Binding ElementName=_rrtbMessage}"

SetupDocument="SetupMessage"/>

</UserControl.Resources>

</Grid>

</UserControl>

<UserControl x:Class="RichTextBoxTest.MainPage"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

d:DesignHeight="300" d:DesignWidth="400">

<UserControl.Resources>

<dHTML:HtmlDataProvider x:Key="xamlDataProvider"

RichTextBox="{Binding ElementName=_rrtbMessage}"

SetupDocument="SetupMessage"/>

</UserControl.Resources>

</Grid>

</UserControl>

<UserControl x:Class="RichTextBoxTest.MainPage"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:Controls="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Documents" xmlns:telerikNavigation="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Navigation" xmlns:dHTML="clr-namespace:Telerik.Windows.Documents.FormatProviders.Html;assembly=Telerik.Windows.Documents.FormatProviders.Html" mc:Ignorable="d"

d:DesignHeight="300" d:DesignWidth="400">

<UserControl.Resources>

<!-- This is necessary for binding the RadRichTextBox to the MessageHtml Property.  Do not remove, even if marked as never used.-->

<dHTML:HtmlDataProvider x:Key="xamlDataProvider"

RichTextBox="{Binding ElementName=_rrtbMessage}"

SetupDocument="SetupMessage"/>

</UserControl.Resources>

<Grid x:Name="LayoutRoot" Background="White">

<Controls:RadRichTextBox x:Name="_rrtbMessage" HorizontalAlignment="Stretch" Margin="200,100,200,100" VerticalAlignment="Stretch" BorderThickness="1" Background="White" IsSelectionMiniToolBarEnabled="False" DocumentInheritsDefaultStyleSettings="True" FontSize="11" BorderBrush="Black" />

</Grid>

</UserControl>

The C#

using System.Windows.Controls;

using Telerik.Windows.Documents.FormatProviders;

using Telerik.Windows.Documents.Layout;

using Telerik.Windows.Documents.Model;

namespace RichTextBoxTest

{

public partial class MainPage : UserControl

{

public MainPage()

{

InitializeComponent();

}

private void SetupMessage(object sender, SetupDocumentEventArgs e)

{

e.Document.LayoutMode = DocumentLayoutMode.Flow;

e.Document.ParagraphDefaultSpacingAfter = 0;

e.Document.SectionDefaultPageMargin = new Padding(5, 3, 3, 5);

}

Is there anything I can do to prevent this? In my original program I've also had a problem with the text being shifted to the left past the boarder of the text box sometimes when I select all, but not always. I think this problem may be related, but I'm not sure and I wasn't able to replicate it so I'll keep trying there.

Thanks,
Michael

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