what is view state?

View State is maintains users state at Client Side.It
provides property to store retention value between multiple
web request.It stores value in HTML hidden field in web page.

View State is a mechanism by which we can maintain the
state during the subsequent post back of same .aspx
page...means suppose we have a registration form to fill i
fill all the entries but some entries were wrong then what
happen next i'll get only those value which was wrong means
i won't fill all the value again just fill the wrong value
only...