Better way to find control in ASP.NET

I have a complex asp.net form,having even 50 to 60 fields in one form like there is Multiview, inside MultiView I have a GridView, and inside GridView I have several CheckBoxes.

Currently I am using chaining of the FindControl() method and retrieving the child ID.

Now, my question is that is there any other way/solution to find the nested control in ASP.NET.