How to make a search function for sql database , and how to get time when info from a table was edited?

Question

I couldn\'t find : Lets say , I have 3 textboxes on my asp.net website:

1.Name ___________
2.Code ___________
3.ID   ___________

I want to

Answer 1

on buuton click u can update or keyup event ... or after mouse lose focus on textbox