More information: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/tt .

Note: this element is obsolete, and has the same meaning as <code>.

Add support for inset borders for tables and table cells (Inset Line Border in OOXML).

Currently ignored words are marked only in-memory using internal properties of the document model. Make them persist, similar to what MS Word do.

Note: In the DOCX format, the document is marked as "clear" (doesn't contain spell check errors) and all misspelled words are enclosed with an errProof annotation.

The word is temporary marked as correct and when another word is added to the dictionary, the ignored one is highlighted again. As a workaround could be used the Ignore All option.

When the paragraph formatting symbol has a formatting, different than the one of the spans in this paragraph, the bullet is not aligned to the baseline of the text

When a list associated with list style is copied from a document (source document), and is pasted in another document (target document), and the target document contains list style with the same name, the the list style from source is added to the target, which creates two list styles with the same name in the target document.

In the same scenario, MS Word uses the list style from the target, and do not add the list style from the source.

Currently when the text contains consecutive non-space symbols like "~!@#$%^&*()_+=-`[]{};:'"/\|., ", each character is detected as a separate word. Instead, they should be considered one word, including all the subsequent space characters.

The following functionalities should respect this grouping:
- Caret navigation by words (CTRL + left/right arrow), MoveCaret UI command and the corresponding DocumentPosition methods.
- Selecting word by double clicking.

When caret is just after list bullet/numbering and Backspace is pressed, left indent is cleared. Instead, only the bullet should be deleted, and the indent should be kept as it is set.

An useful option would be to export the text without the bullets in it.

When the caret is positioned at the beginning of a paragraph with hanging indent and the user press Backspace, the left indent is set to a negative value, the text goes out of the bounds of the document. 

Workaround:
Use the editor's method instead of the command:

private void RadRichTextBox_CommandExecuting(object sender, CommandExecutingEventArgs e)
{
    bool? parameter = e.CommandParameter as bool?;
    if (parameter != null && parameter == true)
    {
        DeleteCommand command = e.Command as DeleteCommand;
        if (command != null)
        {
            e.Cancel = true;
            this.radRichTextBox.Delete(true);
        }
    }
}

Currently, an ArgumentException is thrown when trying to import an image with negative dimensions. In this scenario, we could import the document and skip the image, or read the size of the content.

NullReferenceException is thrown when trying to import a nested hyperlink, e.g. the following OOXML:

<w:hyperlink r:id="rId4" w:history="1">
  <w:hyperlink r:id="rId5" w:history="1">
    <w:r>
      <w:rPr>
        <w:rStyle w:val="Hyperlink"/>
        <w:rFonts w:eastAsia="Times New Roman"/>
      </w:rPr>
      <w:t>google</w:t>
    </w:r>
  </w:hyperlink>
</w:hyperlink>

Characters defined with their unicode codes in HTML won't be imported as symbols, but instead of their codes, for example:

<span>&#26009;</span>
<span>&#36039;</span>

Some of these characters are often used, for example for umlauts (Ä, Ö, Ü) and CJK characters.

The hexadecimal code for Zero Width Space character is split into two parts:
<span>&#x200b;</span> results in Ȁb;

Introduce the support for the border property (with type, size, color...) for a span elements.

In OOXML, this looks like:

<w:r>
  <w:rPr>
    <w:rFonts w:eastAsia="Times New Roman"/>
    <w:sz w:val="45"/>
    <w:szCs w:val="45"/>
    <w:bdr w:val="single" w:sz="12" w:space="0" w:color="000000" w:frame="1"/>
  </w:rPr>
  <w:t>Div with border for Telerik</w:t>
</w:r>
<w:r>

Creating deep copy using CreateDeepCopy method of an empty Section (without paragraphs or with one empty paragraph) adds empty string Span which leads to ArgumentOutOfRangeException. 

Workaround: clear the empty string Spans before measuring:

foreach (Span span in sectionClone.EnumerateChildrenOfType<Span>().ToList())
{
    if (string.IsNullOrEmpty(span.Text))
    {
        ((Paragraph)span.Parent).Inlines.Remove(span);
    }
}




Steps to reproduce:

1. Execute the following code-snippet:

RadDocument document = new RadDocument();
Section section = new Section();
section.Blocks.Add(new Paragraph());
document.Sections.Add(section);

RadDocument documentClone = (RadDocument)document.CreateDeepCopy();
Section sectionClone = (Section)section.CreateDeepCopy();
documentClone.Sections.Clear();
documentClone.Sections.Add(sectionClone);
documentClone.EnsureDocumentMeasuredAndArranged();

2. Set the documentClone to a RadRichTextBox instance to visualize it.

3. Try to click in the document.

Observe: ArgumentOutOfRangeException is thrown.

Inserting DocumentFragment into RadDocument leads to loss of style definitions from the fragment which names are the same as some of the styles in the RadDocument's style repository. This causes loss of formatting of the text in the document fragment.

For example if in the fragment there is a style with style name "Style_1" and in the RadDocument exists a style with the same name, that style will be omitted during the insertion of the fragment into the document.

Workaround: Styles in the fragment could be renamed to avoid naming conflict with styles in the main document. For example, add the following code snippet right after the importing of the document and before the creation of the fragment:

                string styleSuffix = "_1";
                foreach (var importedStyle in rtfDoc.StyleRepository)
                {
                    importedStyle.Name = string.Concat(importedStyle.Name, styleSuffix);
                }

This will automatically change the styles of all elements with the renamed styles.

Loading/editing document with large lists (with 1561 or more items) throws IndexOutOfRangeException when incorrectly tries to convert numbering to letters.

Workaround: Change list type to one which does not include letter NumberingFormat in any of its levels, for example Numbered Hierarchical or custom one.

Pressing Tab/Shift+Tab when caret position is at the beginning of a paragraph should change current paragraph FirstLineIndent instead of LeftIndent.

First line indent should be changed with Document.DefaultTabWidth step.

Workaround (using PreviewEditorKeyDown): in the attached file.

This scenario is not valid according to the HTML specification, but exception shouldn't be thrown.

Steps to reproduce:
- Try to import the following HTML:

<html>
<body>
<p style="font-size = 9px">Simple Test</p>
</body>
</html>

Observed: A NullReferenceException is thrown.

Provide the ability to enter custom values (not listed in the drop-down) in Font size combo box.