[Solved] RadRichText and RadTreeView

[Kate]

Hello!
I have a problem with using a UserControl that contains RadRichTextBox in RadTreeView HierarchicalDataTemplate.
The error text is: 

Строка: 56
Ошибка: Unhandled Error in Silverlight Application
Code: 4004   
Category: ManagedRuntimeError      
Message: System.NullReferenceException: В экземпляре объекта не задана ссылка на объект.
   в Telerik.Windows.Documents.UI.DocumentPresenterBase.get_CaretPosition()
   в Telerik.Windows.Documents.UI.DocumentPresenterBase.DoOnCaretLocationChanged()
   в Telerik.Windows.Documents.UI.DocumentPresenterBase.<DoOnDocumentChanged>b__1()    

It occurs, when I try to set RadRichTextBox Document property:

public partial class SilverlightControl1 : UserControl
   {
       private RadDocument Document;
       public SilverlightControl1()
       {
           InitializeComponent();
           Loaded += SilverlightControl1_Loaded;
       }
       void SilverlightControl1_Loaded(object sender, RoutedEventArgs e)
       {
           this.LoadSampleDocument();
       }
       private void LoadSampleDocument()
       {
           if (this.Document == null)
           {
               this.Document = CreateFormattedDocument("gjfdgldjfgkldfjg");
           }
           radRichTextBox.Document = this.Document;
           radRichTextBox.UpdateEditorLayout();
       }
       private RadDocument CreateFormattedDocument(string text)
       {
           RadDocument document = new RadDocument();
           document.LayoutMode = DocumentLayoutMode.Flow;
           document.SectionDefaultPageMargin = new Padding(25);
           Telerik.Windows.Documents.Model.Section section = new Telerik.Windows.Documents.Model.Section();
           document.Sections.Add(section);
           Telerik.Windows.Documents.Model.Paragraph currentParagraph = new Telerik.Windows.Documents.Model.Paragraph();
           currentParagraph.SpacingAfter = 0;
           section.Paragraphs.Add(currentParagraph);
           string line = text;
           if (!string.IsNullOrEmpty(line))
           {
               Telerik.Windows.Documents.Model.Span span = new Telerik.Windows.Documents.Model.Span(line);
               currentParagraph.Inlines.Add(span);
           }
           return document;
       }
   }

Where is my mistake?

Thanks!

[Vesko]

Hi Kate,

Thanks for this question.
I was able to reproduce the problem. Fortunately we  were able to fix this issues with in our latest internal build (from last week). This fix will be included in the SP1 which is scheduled for the next week.  If you need this fix earlier, you can temporary use the assemblies from the latest internal build.

If you have any further questions, please don't hesitate to ask.

Kind regards,
Vesko
the Telerik team

[Kate]

Thanks a lot! I've just tried the assemblies from your latest internal build and it works well.
We are waiting for SP1.