I have a tinyMCE text editor on my page which is populated with content which is already stored in the database as html.
eg. <p>first paragraph</p><p>second paragraph</p> etc, etc with no problems there.
but when I make a change in the editor and then try to update the content in the database I get the error potentially dangerous request.form value was detected from the client
Add follwing in page directive:
And in Web.config:
Its working fine.