[Solved] Adding UIElementContainer to RadRichTextBox

[Joseph]

Telerik.Windows.Documents.Model.InlineUIContainer cont = new Telerik.Windows.Documents.Model.InlineUIContainer();

Telerik.Windows.Documents.Model.Span block = new Telerik.Windows.Documents.Model.Span();

 

block.Text = "Hello World";

 

cont.Children.Add(block);

Telerik.Windows.Documents.Model.Section s = new Telerik.Windows.Documents.Model.Section();

Telerik.Windows.Documents.Model.Paragraph p = new Telerik.Windows.Documents.Model.Paragraph();

 

p.Children.Add(cont);

 

s.Children.Add(p);

 

rt.RadRichTextBox1.Document.Sections.Add(s);

 

this.LayoutRoot.Children.Add(rt);



I am getting the following error : 
Unable to cast object of type 'Telerik.Windows.Documents.DocumentStructure.BoxNode' to type 'Telerik.Windows.Documents.DocumentStructure.BoxStartNode'.

[Iva Toteva]

Hello Joseph,

 InlineUIContainers are used when you want to embed UIElements in RadRichTextBox. Spans are not UIElements and there is no reason to use InlineUIContainers to add a Span to the document. You can do that like this:

Section section = new Section();

Paragraph paragraph = new Paragraph();
section.Blocks.Add(paragraph);

Span span = new Span("Hello World");
paragraph.Inlines.Add(span);

this.RadRichTextBox1.Document.Sections.Add(section);

If you have any other questions, do not hesitate to contact us again.

Kind regards,
Iva
the Telerik team