How to use WPF RichTextBoxAdv control in Windows Forms application?
The RichTextBoxAdv control allows you to view, edit, and print rich text contents, and also import and export the Html, Xaml, Text files and Word documents (".doc", ".docx"). If you need to add rich user experience as like Windows Presentation Foundation (WPF) to your existing application is in Windows Forms, then it is more effective to embed one or more feature rich WPF controls to your existing Windows Forms application. You can host the Syncfusion WPF RichTextBoxAdv control to your existing Windows Forms application using ElementHost in Windows Forms.
The below sample demonstrates how to host Syncfusion WPF RichTextBoxAdv control in Windows Forms application.
Please do refer the below MSDN reference link for more information about hosting a WPF control in Windows Forms application.