This suggestion is based upon the discussion in report ASPxEditors - The client-side SetCaretPosition method doesn't work under Safari
Proposed Solution:
Describe in the documentation that, in WebKit browsers, it's necessary to call the SetCaretPosition method via a short-delay timer, from within the control's OnFocus event handler.
Ticket
S35305
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Implementation Details:
WebKit-based browsers do not support the setting caret position functionality.
The information about this behavior has been added to the ASPxClientTextEdit.SetCaretPosition Method topic.
Thanks,
DevExpress ASP.NET Team