AX2012 : Custom lookup on Dialog control - A standard AX 2012 example

Recently while debugging a process of approving BOM, I came across a standard AX example where registerOverrideMethod() is used to create lookup on a dialog field. Thought to share with the community.

 

There are some nice blogs which explain more about this method :

http://www.artofcreation.be/2011/08/24/ax2012-sysoperation-part-3-sysoperationautomaticuibuilder/

http://devexpp.blogspot.com.au/2013/07/dynamics-ax-custom-lookup-in-dialog.html

http://swapnakallu.blogspot.com.au/2012/11/lookups-on-dialog-systablelookup-and.html

 

Apart from having the flexibility to create custom lookups on dialog, this also helps us to reuse the existing code.