Hi Fabrizio,
Thanks for your interest in Syncfusion Products.
The internal TextEdit/RichTextEdit will be activated when we double click on TextNode/RichTextNode by default. Also currently we don't have support for binding custom RichTextEdit/TextEdit to RichTextNode/TextNode externally and this is suspected to be a feature.Please create an DT incident for your query so that we can update with the fix for this issue.
You can create the DT incident from the following link.
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http://www.syncfusion.com/account/dashboard>In the interests of maintaining confidentiality, we have a policy of not sharing patches or otherwise proprietary customer specific information in the public Forum.
Please let me know your concerns.
Regards,
Pandi Murugan A