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The RichTextBox.Xaml Builder is a free tool that converts rich text, e.g. from a Microsoft Word document, to xml, where the xml document structure is compatible to Xaml. A xml file, produced with this tool, can be added to the Xaml property of a Silverlight 4 RichTextBox with a single line of code. You can download the tool at the Visual Studio Gallery, or as Click-Once-Install.

Additionally I crated the RichXamlViewer, a Silverlight4 UserControl, based on a RichTextBox, with some useful extra features. The RichXamlViewer has a property XamlSource, which takes the name of a xml file, created with the RichTextBox.Xaml Builder, as value. Set XamlSource and the rich text is displayed. The text inside the RichXamlViewer is zoomable at runtime using an (optional) integrated ZoomPad. Also, a context menu to copy selected text is integrated.

There is a screencast on how to easily create rich text to x(a)ml conversions with the RichTextBox.Xaml Builder and on how to use resulting xml files with a regular Silverlight 4 RichTextBox or with the RichXamlViewer. The video is in german language.

Mark has worked on the text aspects of Silverlight since the first version. Here are just a few of the areas that Mark covers:

1. Overview of RichTextBox vs. TextBlock and TextBox for rich content
2. Wire-up logic for applying formatting
3. Inline UI elements
4. Using text position to point for simple and complex operations [...]

As we all know, the build-in WPF RichTexbox doesn’t provide some features that we are looking for so if you are in need of using RichTexbox in WPF project, you should know that you will need to roll your own implementation (at least) a bit. In this post, I will brief you how to make WPF RichTextbox bindable, how to display the HTML in WPF, how to create a Rich Textbox Editor with toolbar.

ComponentOne released Studio Enterprise 2009 and new Silverlight controls have been added. Below is an overview of What’s New:

• DataGrid for Silverlight now supports Microsoft Outlook-style grouping and a DateTime column.
• RichTextBox for Silverlight now supports undo/redo and RTF import/export. 
• Renewed Gauges for Silverlight: New types of ranges, support for off mode, label format, and more. 
• Add style to your UI with built-in support for the most popular Microsoft Silverlight Toolkit themes, including ExpressionDark, ExpressionLight, WhistlerBlue, RainerOrange, ShinyBlue, and BureauBlack. Take a look at the Control Explorer, and navigate to Themes to see the supported controls.