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What are the disadvantages of view state / what are the
benefits?
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Answer Posted / sreyasmn
Advantages:
- No server resources required
- simple implementation
- automatic retention of page and control state
- Enhanced security features. The values in view state are
hashed, compressed, and encoded for Unicode implementations.
Disadvantages - Because the view state for a given page
must be kept on the server, it is possible for the current
state to be out of synchronization with the current page of
the browser, if the user uses the Back feature on the
browser to go back in the history.For example, suppose the
user goes to Page 1, then clicks a button to go to Page 2,
then presses Back to return to Page 1. The current page on
the browser is now Page 1, but the current state on the
server is that of Page 2. Advantages - On ordinary Web
Forms pages, their view state is sent by the server as a
hidden variable in a form, as part of every response to the
client, and is returned to the server by the client as part
of a postback. However, to reduce bandwidth demand when
using mobile controls, ASP.NET does not send a page's view
state to the client. Instead, the view state is saved as
part of a user's session on the server. Where there is a
view state, a hidden field that identifies this page's view
state is sent by the server as part of every response to
the client, and is returned to the server by the client as
part of the next request.
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