Keys in Traditional Chinese On-screen Keyboard are duplicated.

Hello,

   We found a problem when using the radrichtextbox control. When radrichtextbox is enabled to cancel input, error will be reported using the sougou Chinese input method. This problem will not occur in the English input method. Please help solve it. Thank you very much.

With the current implementation, each change in a Table's structure invalidates the styling of all the cells in it when conditional styling is applied. This leads to re-rendering the whole table and affects the performance. If adding rows at the end of the table, only the new row can be styled. Another option is to expose API to allow the customers to disable the styling update while inserting rows and enable it after they are ready with the insertion.

Xaml exported in Net Core app cannot be imported with Net Framework app

This behavior is observed when copy and paste a Chinese text wrapped in a bookmark.

Steps to reproduce:
1. Import the attached document (testDocument.docx)

Use the attached project to reproduce:

- Click the first button so the image is changed

- Click the second button and examine the exported HTML

Expected: the Uri is exported

Actual: the Uri is not exported.

Workaround: 

p.Inlines.AddAfter(image, image2);
p.Inlines.Remove(image);

To reproduce:

- Select several words by holding the control key. 

- Paste some text. 

Result: the first word is replaced, the other are deleted

Expected: the text should be pasted in all selected places

Workaround:

private void RadRichTextBox_CommandExecuting(object sender, Telerik.Windows.Documents.RichTextBoxCommands.CommandExecutingEventArgs e)
{
    if (e.Command is PasteCommand)
    {
        var ranges = radRichTextBox.Document.Selection.Ranges.ToList();
        if (ranges.Count > 1)
        {
            e.Cancel = true;

            foreach (var range in ranges)
            {
                radRichTextBox.Document.Selection.Clear();
                radRichTextBox.Document.Selection.AddSelectionStart(range.StartPosition);
                radRichTextBox.Document.Selection.AddSelectionEnd(range.EndPosition);
                PasteNewText();
            }      
        }
    }
}
public void PasteNewText()
{
    DocumentFragment clipboardDocument = null;
    string clipboardText = null;
    bool clipboardContainsData = false;

    if (ClipboardEx.ContainsText(null))
    {
        clipboardText = ClipboardEx.GetText(null);
        clipboardContainsData = true;
    }

    if (!clipboardContainsData)
    {
        return;
    }

    if (clipboardDocument != null)
    {
        this.radRichTextBox.ActiveDocumentEditor.InsertFragment(clipboardDocument);
    }
    else if (!string.IsNullOrEmpty(clipboardText))
    {
        this.radRichTextBox.ActiveDocumentEditor.Insert(clipboardText);
    }
}

When the MEF catalog of RadRichTextBox is predefined, the PasteOptionsPopup is not automatically loaded and causes NullReferenceException in the presenter when the users press Ctrl or Esc.

Workaround: Add typeof(PasteOptionsPopup) to the catalog.

When a hyperlink uri contains a symbol that needs to be escaped (e.g. ')'), the exported document is corrupted.

Use Destination styles does not appear in the paste options popup control. It only appears in the RadRibbonDropDownButton.

Support should be implemented for importing height CSS property applied to HTML table cells.

RichTextBox: wrong content when pasting RTF with an encoding other than utf-8.

To reproduce: 

protected override void OnClosing(CancelEventArgs e)
{
    this.radRichTextBox.Document = null;
    base.OnClosing(e);
}

To reproduce:

• Create two lists one after another
• Select the second by using the keyboard 
• Press delete and then Ctrl+z (undo)

This works fine when the list is selected with the mouse. 

1. Open RadRichTextBox
2. Click to Home tab -> Paragraph group-> Multilevel list button
4. Click to "Define New List Style"
5. In "Apply formatting to" select 4th level. Don't select '1','2','3' beforehand, select '4' right after '1'st level.

Observed result: All text except the 4th level is bold.

Expected result: Only 4th level text is bold.

Currently, the address tag is not supported and everything within this tag is skipped on import.

RichTextBox: Replacing text in a hyperlink puts the text with a wrong start position. It starts from the second index.

When importing an HTML file which contains table should align table cell content left and middle. Instead, it aligns them left and top.

The document content is not measured properly, leading to incorrect selection ranges.

While typing, there are spaces added after the content, the caret is not positioned as expected.