When a document is imported from HTML, we set locally to the span elements Times New Roman nevertheless it is not declared anywhere. This breaks the document view if for example we decide to change the RadDocument's default font family or even the NormalWeb style's font. The same applies for the font size as well.

Workaround: Clear the FontFamily property after import

foreach (Span span in this.radRichTextBox.Document.EnumerateChildrenOfType<Span>())
{
    span.GetStyleProperty(Span.FontFamilyProperty).ClearValue();

   span.GetStyleProperty(Span.FontSizeProperty).ClearValue();

}

Steps to reproduce:

1. Import the following html:

this.radRichTextBox.Document = new HtmlFormatProvider().Import(@"<h1>Hello</h1><h2>World</h2><p>Lorem ipsum<p>");

2. Set the document's default font family to Comic Sans MS:

this.radRichTextBox.Document.Style.SpanProperties.FontFamily = new FontFamily("Comic Sans MS");

Observe: The font in the document is Times New Roman

Expected: The font should be Comic Sans MS

When changing the theme through ThemeResolutionService.ApplicationThemeName all the application gets changed. Except the ForeColor of the RadRichTextEditor does not get change. Hence the box displays black text on a dark background. Quite unreadable.

Assigning the theme directly in the designer makes everything renders ok.

Sample application attached.

Regrads,
Matthias

The ChangeFontStyle method does not work when setting Underline: 

radRichTextEditor1.ChangeFontStyle( FontStyle.Underline);

Workaround:

radRichTextEditor1.ToggleUnderline();

The default browser paragraph spacing is not preserved during HTML import-export. 

Workaround:

StyleDefinition normalStyle = this.radRichTextEditor1.Document.StyleRepository[RadDocumentDefaultStyles.NormalWebStyleName];
normalStyle.ParagraphProperties.SpacingAfter = 20;
normalStyle.ParagraphProperties.SpacingBefore = 20;

Importing this:

<p>This is a paragraph.</p>
<p>
	This is a paragraph.
</p>

should import two identical paragraphs, but it actually import it like this:

This is a paragraph.
 This is a paragraph.

It has a leading space before the second paragraph.

Pasting adds an additional paragraph that does not exist in the source(copy).

RadRichTextEditor: The paste options popup stays visible when the control is hidden

Workaround:

((MiniToolBarBase)this.radRichTextEditor1.RichTextBoxElement.PasteOptionsPopup).Hide();

The built-in Hyperlink style is not applied to hyperlinks imported from HTML (<a> tag). As a result, the hyperlinks in the document does not have the blue underline.