Languages in AX 2009 - Using a the LanguageTable form for Lookup building- AX 2009

Today I had a requirement to only show the following language across the whole application:

• en-us
• fr
• it

At first I thought to create a custom lookup method as I did for another requirement last month (http://axwonders.blogspot.com/2011/03/filter-activity-form-contact-to-only.html), but then I thought .. Oh my .. this would mean to add a lookup method to several forms across the application, and what about if I need to change something in the future? It was a fact that the scalability of this change will be an issue.

Because the requirement said "Across the application" I decided to modify the LanguageTable form to be shown as a lookup in every instance of the LanguageID across the application.

The following are the steps I took: