Ajax using Display CRUD Application & JSON

Question

Hi.

How to CRUD Application usin Ajax in asp.net.

please tell me and.

 

tell me how to start to end a freelancing project in asp.net.

 tell me short cuts or guide lines.

 

how to convert  html theme into asp.net program.

be professional design and error rectify procedure. actually, i have 1 year experiance in asp.net web pages.

 

but, i am not confidence in next any projects to take.please suggestion or tell me latest updates.any use full websites and how store my some projects in online. so, what websites is safe and how do it?