Recently in order to resolve some internal incidents, I have the requirement to monitor the control registration and deregistration, that is, I need to know when and where the control is created and destructed. If you don’t know where to set breakpoint to achieve it, just follow me
By going through this file soon I find what I am looking for.
The control registration is just to add a key ( control id ) – value ( control instance ) pair to the central container “this.mElements”. This could be found in line 1921.
The control deregistration is just to remove the entry from container – line 1930.
(5) When I set the breakpoint in line 1921 trying to capture the time when the list instance is created. What annoying me is the breakpoint is triggered again and again since there is so many controls in my ui.
Then I just wrote a small pieces of code below
