The primary advantages of the ViewState feature in ASP.NET are...
1. Simplicity. There is no need to write possibly complex code to store
form data between page submissions.
2. Flexibility. It is possible to enable, configure, and disable
ViewState on a control-by-control basis, choosing to persist the values
of some fields but not others.
There are, however a few disadvantages that are worth pointing out:
1. Does not track across pages. ViewState information does not
automatically transfer from page to page. With the session
approach, values can be stored in the session and accessed from other
pages. This is not possible with ViewState, so storing
data into the session must be done explicitly.
2. ViewState is not suitable for transferring data for back-end
systems. That is, data still has to be transferred to the back
end using some form of data object.
1. Simplicity. There is no need to write possibly complex code to store
form data between page submissions.
2. Flexibility. It is possible to enable, configure, and disable
ViewState on a control-by-control basis, choosing to persist the values
of some fields but not others.
There are, however a few disadvantages that are worth pointing out:
1. Does not track across pages. ViewState information does not
automatically transfer from page to page. With the session
approach, values can be stored in the session and accessed from other
pages. This is not possible with ViewState, so storing
data into the session must be done explicitly.
2. ViewState is not suitable for transferring data for back-end
systems. That is, data still has to be transferred to the back
end using some form of data object.
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