SilverLight RichTextBox rendering

SilverLight RichTextBox rendering

Well

I made Custom Control(richtextbox)

problem is that can not render in xaml after saving, somthing like this displayed (xaml code)

<Section xml:space="preserve" HasTrailingParagraphBreakOnPaste="False" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"><Paragraph FontSize="11" FontFamily="/NRA.ClientLibrary;component/Fonts/Fonts.zip#BPG Glaho" Foreground="#FF000000" FontWeight="Normal" FontStyle="Normal" FontStretch="Normal" CharacterSpacing="0" Typography.AnnotationAlternates="0" ........  

that my RichTextBox look like this ...

        <ComboBox SelectionChanged="cmbFontSizes_SelectionChanged"  Width="45">             <ComboBoxItem Content="8" Tag="8"/>             <ComboBoxItem Content="9" Tag="9"/>             <ComboBoxItem Content="10" Tag="10"/>             <ComboBoxItem Content="11" Tag="11" IsSelected="True"/>             <ComboBoxItem Content="12" Tag="12"/>             <ComboBoxItem Content="14" Tag="14"/>             <ComboBoxItem Content="16" Tag="16"/>             <ComboBoxItem Content="18" Tag="18"/>             <ComboBoxItem Content="20" Tag="20"/>             <ComboBoxItem Content="22" Tag="22"/>             <ComboBoxItem Content="24" Tag="24"/>             <ComboBoxItem Content="26" Tag="26"/>             <ComboBoxItem Content="28" Tag="28"/>             <ComboBoxItem Content="36" Tag="36"/>             <ComboBoxItem Content="48" Tag="48"/>             <ComboBoxItem Content="72" Tag="72"/>         </ComboBox>          <ComboBox SelectedIndex="0" SelectionChanged="cmbFontColors_SelectionChanged" Width="55">             <ComboBoxItem Tag="FFFF0000">                 <Rectangle Width="22" Height="14" Fill="Red" Margin="2,0,0,0" />             </ComboBoxItem>             <ComboBoxItem Tag="FF008000">                 <Rectangle Width="22" Height="14" Fill="Green" Margin="2,0,0,0" />             </ComboBoxItem>             <ComboBoxItem Tag="FF0000FF">                 <Rectangle Width="22" Height="14" Fill="Blue" Margin="2,0,0,0" />             </ComboBoxItem>             <ComboBoxItem Tag="FFFFFF00">                 <Rectangle Width="22" Height="14" Fill="Yellow" Margin="2,0,0,0" />             </ComboBoxItem>             <ComboBoxItem Tag="FF000000" IsSelected="True">                 <Rectangle Width="22" Height="14" Fill="Black" Margin="2,0,0,0" />             </ComboBoxItem>         </ComboBox>          <StackPanel Orientation="Horizontal">              <!--Font Formatting Buttons-->             <Button x:Name="btnBold" Padding="5 0" Click="btnBold_Click">                 <TextBlock Text="B" FontWeight="Bold" FontFamily="Georgia" FontSize="14" />             </Button>              <Button x:Name="btnItalic" Padding="5 0" Click="btnItalic_Click">                 <TextBlock Text="I" FontWeight="Bold" FontFamily="Georgia" FontSize="14" FontStyle="Italic" />             </Button>              <Button x:Name="btnUnderline" Padding="5 0" Click="btnUnderline_Click">                 <TextBlock Text="U" FontWeight="Bold" FontFamily="Georgia"  FontSize="14" TextDecorations="Underline" />             </Button>         </StackPanel>     </StackPanel>      <ScrollViewer x:Name="scrollViewer" VerticalScrollBarVisibility="Auto" Padding="0">         <RichTextBox x:Name="richTextBox" ContentChanged="richTextBox_ContentChanged" AcceptsReturn="True" TextWrapping="Wrap" Height="75" Background="Transparent" BorderThickness="0"/>     </ScrollViewer> </StackPanel> 

Code Behind

public string Text {     get { return (string)GetValue(TextProperty); }     set { SetValue(TextProperty, value); } }  public static readonly DependencyProperty TextProperty =     DependencyProperty.Register("Text", typeof(string), typeof(RichTextBoxEditor), new PropertyMetadata(null, OnTextPropertyChanged));  private static void OnTextPropertyChanged(DependencyObject re, DependencyPropertyChangedEventArgs e) {     RichTextBoxEditor richEdit = (RichTextBoxEditor)re;      if (richEdit.richTextBox.Xaml != (string)e.NewValue)     {         try         {             richEdit.richTextBox.Blocks.Clear();              if (string.IsNullOrEmpty((string)e.NewValue) == false)             {                 richEdit.richTextBox.Xaml = (string)e.NewValue; **here throws Exception: ArgumentException was caught ' value '**             }         }         catch         {             richEdit.richTextBox.Blocks.Clear();              if (string.IsNullOrEmpty((string)e.NewValue) == false)             {                 richEdit.richTextBox.Selection.Text = (string)e.NewValue;             }         }     } }   private void richTextBox_ContentChanged(object sender, ContentChangedEventArgs e)         {             Text = richTextBox.Xaml;         } 

did anyone have this kind of problem??

Answers & Comments...

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