How to make TinyMCE work inside an UpdatePanel?

Question

I\'m trying to do something that many people seem to have been able to do but which I am unable to implement any solution. The TinyMCE control works pretty well in an asp.net fo

Answer 1

TinyMCE (as well as other WYSIWYG editors, FCKEditor etc) suffers from postback validation issues. By default any ASP.Net page on postback has its contents checked, and any unencoded HTML throws the postback validation error.

Now many people, including on those forums suggest disabling the postback validation, validaterequest="false" , but this makes you susceptible to scripting attacks, the best thing to do is bind a function to the async postback event that fires off just before async postback. This JavaScript function needs to HTML encode the TinyMCE data being posted back to the server, this will then pass the postback validation and you'll be OK.

I believe TinyMCE and other editors correctly do this on postbacks but not async postbacks hence the issue, in fact if you look at TinyMCE's source you can probably find their function that does this and simply add the event binding.

Hope this helps