Use the Search API subset of the RichEditControl to perform search and replace operations.

Implement a custom class with the IUriProvider interface to set the image's src attribute when a document is saved in HTML format.

Use Outlook Interop API to prepare a mail item based on the RichEditControl content.

Bind the RichEditControl to a data column and handle the content save and load operations.

Retrieve text from RichEditControl in available formats.

Traverse the document layout tree and paint document elements.

Handle the corresponding events to drag-and-drop data from ListBox to RichEditControl.

Use the Table API to display a DataTable Class instance content.

Use RichEditControl in a "Log Viewer"-like application.

Use the Rich Text Editor to view, accept, and reject revisions in the document.

Use RichEditControl's commands to determine the start and end positions of the current line.

Use the service substitution technique to change the actions performed when the built-in command is executed.

Implement an extension method for RichEditControl.Document to modify the entire document content in a single place.

Remove an empty space at the left side of the RichEditControl.

Use the RichEditControl.GetPositionFromPoint method to obtain the document position under the mouse pointer.

Customize the "Insert Merge Field" menu to group merge field names with identical prefixes into submenus.

Use WatermarkManager to insert image or text watermarks.

Add a hyphenation dictionary and enable hyphenation in Rich Text Editor

Use Visitor-Iterator pattern to export RichEditControl's document in a custom format.

Handle the ColumnView.ShownEditor event to manage active grid cell content with RepositoryItemRichTextEdit.