Completed
Last Updated: 20 May 2026 11:37 by ADMIN
Release 2026.2.520 (2026 Q2)
Make the UpdateViewPort of the SelectionUILayer class virtual so it can be overridden, thus allowing customization of the selection rectangle drawn in the UI.
Unplanned
Last Updated: 03 May 2026 15:00 by James
ADMIN
Created by: Todor
Comments: 9
Category: RichTextBox
Type: Feature Request
9
Implement the export of notes (footnote, endnote) in the PdfFormatProvider of the RadRichTextBox.
Unplanned
Last Updated: 01 May 2026 07:43 by Martin Ivanov
Add keyboard navigation in the DropDownList and ComboBox SDT elements (content controls) of RadRichTextBox. 
Alt(or another modifier)+Down for drop down opening and Up and Down arrows for navigation in the items.
Unplanned
Last Updated: 28 Apr 2026 13:02 by Martin Ivanov
Created by: Martin Ivanov
Comments: 0
Category: RichTextBox
Type: Feature Request
0
Currently, the SdtProperties classes (ex: DateProperties) can be extended by overriding the GetBuilder() method. This allows you to implement custom ISdtBuilder that creates the document content of the SDT form. However, the custom properties are not taken into account during import/export. Consider adding some kind of custom information about the custom SdtProperties type during export and restore it during import. Or at the least provide API (like an event or method override) that can intercept the creation of the SdtProperties during import which will allow you to replace the default SdtProperties object.
Unplanned
Last Updated: 03 Apr 2026 15:54 by Martin Ivanov

Add protection mode that allows to make the document readonly, but allow forms editing. In MS Word this can be enabled via the "Restrict Editing" menu. The option is called "Filling in forms" and protects the document, but leaves the Sdt elements (the forms) editable.

Unplanned
Last Updated: 25 Mar 2026 10:00 by Martin Ivanov
Currently, when you insert a content control using TextProperties, CheckBoxProperties, etc., the applied font is the default one for the content controls. Instead, it should use the font of the associated span/paragraph where it was inserted. For example, if you type "Hello world" and set its font size to 36, then place the cursor between "Hello" and "world" and insert a textbox content control there, the font size of the textbox will be something like 10, instead of 36.

Synchronize the font properties and make sure that the content control uses same font as the existing paragraph/span.
Unplanned
Last Updated: 02 Mar 2026 12:48 by Luc
Currently, RadRichTextBox supports the import and export of shapes from and to Office Open XML (DOCX). When exporting to PDF, the shapes are converted to images. When exporting to other formats the shapes are lost.
Completed
Last Updated: 11 Feb 2026 09:14 by ADMIN
Release 2026.1.211 (2026 Q1)

FormatException is thrown during the import of a table coming from a docx document when the application culture is "sv-SE". This happens when the column width in the document is a floating point number (ex: 120.65). The Swedish culture uses "," as decimal separator and " " as the number group separator, which makes any invariant decimal value (like 120.65) invalid during standard parsing (ex: float.Parse("120.65")).

Stacktrace:

FormatException: The input string '4514.5' was not in the correct format.
at System.Single.Parse(String s)
Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.TableImporter.ImportTableGrid(Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Parsing.Style style)  Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.TableImporter.Import(Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Parsing.Style parentStyle)  Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.MainDocumentImporter.BuildTable(Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Parsing.Style parentStyle)  Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.MainDocumentImporter.BuildBody()  Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.MainDocumentImporter.BuildDocument()  Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.MainDocumentImporter.Import()Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.DocxImporter.ReadXmlContentFromPackage(Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.DocxPartImporterBase importer)  Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.DocxImporter.ReadXmlContentAndRelationsFromPackage(Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.DocxPartImporterBase importer)
Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.DocxImporter.Import()  Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.DocxFormatProvider.Import(System.IO.Stream input) 

To work this around, switch to InvariantCulture during the import and return the original culture after that.

 var cultureCache = Thread.CurrentThread.CurrentCulture;
 Thread.CurrentThread.CurrentCulture = System.Globalization.CultureInfo.InvariantCulture;
 Thread.CurrentThread.CurrentUICulture = System.Globalization.CultureInfo.InvariantCulture;
 var provider= new DocxFormatProvider();
 rtb.Document = provider.Import(stream);
 Thread.CurrentThread.CurrentCulture = cultureCache;
 Thread.CurrentThread.CurrentUICulture = cultureCache;

Completed
Last Updated: 21 Jan 2026 12:28 by ADMIN
Release Telerik UI for WPF 2025.4.1321
 Unify the keyboard selection in tables with the arrow keys to match MS Word.
Completed
Last Updated: 21 Jan 2026 12:28 by ADMIN
Release Telerik UI for WPF 2025.4.1321
Created by: Iva
Comments: 4
Category: RichTextBox
Type: Feature Request
6
Currently, the only customization that can be performed is using HyperlinkToolTipFormatString property of RadRichTextBox, which sets the format for all hyperlinks in the document of the control. It would be nice if it were possible to be able to set different tooltips. 
Unplanned
Last Updated: 19 Jan 2026 09:15 by Stenly
Created by: Stenly
Comments: 0
Category: RichTextBox
Type: Feature Request
1
Currently, the RadRichTextBox control does not support selecting multiple images as MS Word does when the Wrap Text option is not set to In Line with Text.
Unplanned
Last Updated: 24 Dec 2025 08:36 by Martin Ivanov
Created by: Martin Ivanov
Comments: 0
Category: RichTextBox
Type: Feature Request
1
Improve the performance of the document import. Currently, large documents take a lot of time to get imported with the DocxFormatProvider, even if not assigned to the RadRichTextBox control. 
Unplanned
Last Updated: 31 Oct 2025 11:38 by Martin Ivanov
Created by: Martin Ivanov
Comments: 0
Category: RichTextBox
Type: Feature Request
1
Currently, if you have img element in the HTML content which points to a link with an SVG image, the SVG is not imported. Instead, the missing image placeholder is displayed. Add support for importing SVG images. 
Unplanned
Last Updated: 17 Oct 2025 08:36 by ADMIN
Created by: Swapnil
Comments: 1
Category: RichTextBox
Type: Feature Request
0

Bold/Italic does not work for some font styles.

This might be a framework limitation in WPF: https://www.telerik.com/forums/some-fonts-are-not-able-to-bold-italic

Sample fonts list:

  1. Tw Cen MT Condensed Extra Bold (bold/italic)
  2. Tw Cen MT Condensed (bold/italic)
  3. Sitka Text Semibold (italic)
  4. Sitka Subheading Semibold (italic)
  5. Sitka Small Semibold (italic)
  6. Sitka Heading Semibold (italic)
  7. Sitka Display Semibold (italic)
  8. Sitka Banner Semibold (italic)
  9. Segoe UI Variable Text Semibold (italic)
  10. Segoe UI Variable Text Light (bold/italic)
  11. Segoe UI Variable Display Light (bold/italic)
  12. Segoe UI Semilight (bold/italic)
  13. Segoe UI Semibold (bold/italic)
  14. Segoe UI Light (bold/italic)
  15. Segoe UI Black (italic)
  16. Script MT Bold (bold/italic)
  17. Rockwell Condensed (bold/italic)
  18. Rockwell Extra Bold (italic)
  19. Rage Italic (bold/italic)
  20. OCR A Extended (bold/italic)
  21. Nirmala UI Semilight (bold/italic)
  22. Microsoft YaHei UI Light (bold/italic)
  23. Microsoft YaHei Light (bold/italic)
  24. Microsoft JhengHei UI Light (bold/italic)
  25. Microsoft JhengHei Light (bold/italic)
  26. Malgun Gothic Semilight (bold/italic)
  27. Leelawadee UI Semilight (bold/italic)
  28. Gloucester MT Extra Condensed (bold/italic)
  29. Gill Sans Ultra Bold Condensed (bold/italic)
  30. Gill Sans Ultra Bold (bold/italic)
  31. Gill Sans MT Ext Condensed Bold (bold/italic)
  32. Gill Sans MT Condensed (bold/italic)
  33. Franklin Gothic Medium Cond (bold/italic)
  34. Franklin Gothic Heavy (bold/italic)
  35. Franklin Gothic Medium (bold/italic)
  36. Franklin Gothic Demi (bold/italic)
  37. Franklin Gothic Demi Cond (bold/italic)
  38. Franklin Gothic Book (bold/italic)
  39. Dubai Medium (bold/italic)
  40. Dubai Light (bold/italic)
  41. Corbel Light (bold/italic)
  42. Copperplate Gothic Light (bold/italic)
  43. Copperplate Gothic Bold (bold/italic)
  44. Cooper Black (bold/italic)
  45. Cascadia Mono SemiLight (bold/italic)
  46. Cascadia Mono SemiBold (italic)
  47. Cascadia Mono Light (bold/italic)
  48. Cascadia Code SemiLight (bold/italic)
  49. Cascadia Mono ExtraLight (bold/italic)
  50. Cascadia Code SemiBold (italic)
  51. Cascadia Code Light (bold/italic)
  52. Cascadia Code ExtraLight (bold/italic)
  53. Candara Light (bold/italic)
  54. Calibri Light (bold/italic)
  55. Britannic Bold (bold/italic)
  56. Bodoni MT Condensed (bold/italic)
  57. Bodoni MT Black (italic)
  58. Bernard MT Condensed (bold/italic)
  59. Bahnschrift SemiLight Condensed (bold/italic)
  60. Bahnschrift SemiLight SemiConde (bold/italic)
  61. Bahnschrift SemiLight (bold/italic)
  62. Bahnschrift SemiBold (bold/italic)
  63. Bahnschrift SemiBold SemiConden (bold/italic)
  64. Bahnschrift SemiCondensed (bold/italic)
  65. Bahnschrift SemiBold Condensed (bold/italic)
  66. Bahnschrift Light Condensed (bold/italic)
  67. Bahnschrift Light  (bold/italic)
  68. Bahnschrift Condensed (bold/italic)
  69. Arial Rounded MT Bold (bold/italic)
  70. Arial Narrow (bold/italic)
  71. Arial Black (italic)

 

Unplanned
Last Updated: 15 Oct 2025 11:25 by Martin Ivanov
Currently, when you write down a web address (e.g. https://www.google.com) and move the caret outside of the address text (usually by pressing Space or Enter), the text is automatically wrapped in a hyperlink. Any further updates on the text won't update the underlying hyperlink address.

Add an option to auto-detect changes in the hyperlink text. This is valid only when the text matches the underlying link.
Unplanned
Last Updated: 17 Sep 2025 14:55 by Martin Ivanov
Add support for export and import of the TextWrapping setting of the FloatingImageBlock to HTML. 
Unplanned
Last Updated: 04 Jun 2025 14:42 by Stenly
Created by: Stenly
Comments: 0
Category: RichTextBox
Type: Feature Request
1
Currently, the RadRichTextBox supports only the MS Pinyin. We could add support for QQ Pinyin.
Completed
Last Updated: 21 May 2025 07:52 by ADMIN
Release 2025.2.521 (2025 Q2)
Having a table, for example, with empty cells, executing the TabBackwardsCommand does not move the caret to the previous cell of the row.
Unplanned
Last Updated: 03 Mar 2025 14:30 by Martin Ivanov
Many document elements (like Footer, Header, Note, Comments, etc.) have their own RadDocument instance that serves as their body. These child documents are part of the main RadDocument assigned as the Document of RadRichTextBox.

Currently, to access the child RadDocument elements, you should iterate each different element of the main RadDocument and collect its Body property value.

Add a method to easily collect the child RadDocuments, similar to how the EnumerateChildrenOfType<T> method works. Currently the EnumerateChildrenOfType<T> method doesn't work for searching RadDocument, so you can consider extending this already existing API.
Unplanned
Last Updated: 27 Feb 2025 14:30 by Martin Ivanov
Created by: Martin Ivanov
Comments: 0
Category: RichTextBox
Type: Feature Request
2
Add localization strings that can be used with the RadRichTextBoxRibbonUI control. Also, add the localization resources in the demos.
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