When exporting a document in a Silverlight project using the XamlFormatProvider an exception is thrown.

RTF documents that do not define the appropriate style types in the style definitions are not processable in RTB. While this is a deviation from the standard, MS Word manages to fix them and then open them.

- When exporting Docx to Binary,  non-breaking spaces are being replaced by a normal space. 

When importing an html file and the color of the text is marked as windowtext, the text is transparent.

When the user control contains more than one RadRichTextBox instances, an "Element is already the child of another element" error is thrown design time.

Fix available in LIB Version 2017.2.710.

When RichTextBox is added to the project, the following exception is thrown in the designer:

XamlParseException: Cannot find a Resource with the Name/Key thumbResizeMargin [Line: 26 Position: 49]. 

Fix available in LIB Version 2017.2.619.

Steps to reproduce.
1. Open the ManageStylesDialog dialog.
2. Hover the Normal style item.
3. Scroll the dialog using mouse wheel. - An UnhandledException in Silverlight will be throw

When the user opens a dialog in RadRichTextBox, after closing this dialog, the focus is lost.

When a hyperlink is copy/pasted from MS Word to RadRichTextBox, only the display name is pasted and the hyperlink is lost.

The textblocks in PageSetup dropdowns in PageLayout tab have black foreground, when Expression_Dark theme is applied. The foreground color should be white.

When entering header, the focus is moved to the footer. When entering footer, focus goes to the main document editor, comment editor (if comment is present), or footnotes/endnotes editor (if footnotes/endnotes are present). Sometimes the focus is moved to the Font combo box in the Ribbon UI.

When inserting symbols in the header, some of them are inserted in the footer.

RadRichTextBox does not import correctly value set to auto for paragraph, table or table cell background. The imported color is white.

Possible workaround is to set the background color to specific value or to clear the value.

I am using a HtmlFormatProvider control to display html memo. But there is an issue that this control will display nothing if the wrong color number in html. Ex, if you set html like below, the control display empty. it should ignore the error and display rest of message. Thanks
previewControl.htmlDataProvider.Html = "<table >\r\n<tbody>\r\n<tr>\r\n<td align=\"left\" valign=\"middle\" height=\"30px\" bgcolor=\"#cccccc\" style=\"height:30px;font-size:12px;padding-left:3px;bgcolor=#cccccc;font-weight:bold;color:#00001;border-bottom:1px solid #000001;\">\r\nItem number</td>\r\n</tr>\r\n</tbody>\r\n</table>" 

The exception can be observed when printing document containing images with unsupported formats, or images with empty source (RawData = "").

The exception is with the following call stack:

   at Telerik.Windows.Documents.UI.HeaderFooterContainer.UpdateUI(SectionLayoutBox sectionBox, Boolean delayed)
   at Telerik.Windows.Documents.UI.HeaderFooterContainer.UpdateUI(SectionLayoutBox sectionBox)
   at Telerik.Windows.Documents.UI.DocumentPrintPresenter.MeasureOverride(Size availableSize)
   at System.Windows.FrameworkElement.MeasureOverride(IntPtr nativeTarget, Single inWidth, Single inHeight, Single& outWidth, Single& outHeight)


Workarounds:

If you click on print preview and print the document from the preview it is working;
     2. Use the following code

        this.radRichTextBox .PrintStarted += Rtb_PrintStarted;

        private void Rtb_PrintStarted(object sender, EventArgs e)
        {
            RadRichTextBox rtb = (RadRichTextBox)sender;
            foreach (var floatingImage in rtb.Document.EnumerateChildrenOfType<FloatingImageBlock>()
                                                      .Where(fi => !this.IsSupportedImageFormat(fi.ImageInline.Extension))
                                                      .ToList())
            {
                floatingImage.Parent.Children.Remove(floatingImage);
            }

            foreach (var inlineImage in rtb.Document.EnumerateChildrenOfType<ImageInline>()
                                                    .Where(i => !this.IsSupportedImageFormat(i.Extension))
                                                    .ToList())
            {
                inlineImage.Parent.Children.Remove(inlineImage);
            }
        }

        private bool IsSupportedImageFormat(string format)
        {
            return (format == "jpg") ||
                   (format == "jpeg") ||
                   (format == "png") ||
                   (format == "bmp");
        }   

The calculation of the left and hanging indent is incorrect for paragraph in list when the left and hanging indents are with the same value.

The borders of a row spanned (merged) cell are not correctly imported if the borders are applied before the merge.

The fix is available in our latest LIB release (v. 2015.1.0316).