To prevent users from changing the name of the planet, you can develop a Item Updating event receiver.
Dangers lurk hidden out there which, if you run into them, can be a blow to your project and waste a great deal of time.
Damon gives just one example of a poisoned dagger in the game of Sharepoint Development: The Item Event Receiver.
And proud MEET member If you don’t find the answers to your questions on this blog, you can always post your questions to the Share Point 2010 forum or the Share Point 2013 forum.
I always forget this and when I come to create a new Share Point Event Receiver I wonder why the Before Properties or After Properties are sometimes not populated.
This was done using the ‘Is Field Null’ method [shown below].