DOT NET Interview Questions - DotNetSpider

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They can be tampered creating a security hole.
Page performance decreases if you store large data , as the data is stored in
pages itself.
Hidden fields do not support rich structures as HTML hidden fields are only
single valued.Then you have to work around with delimiters etc to handle
complex structures.
Below is how you will actually implement hidden field in a project
(B) What is ViewState ?
Viewstate is a built-in structure for automatically retaining values among multiple requests
for the same page. The view state is internally maintained as a hidden field on the page
but is hashed, providing greater security than developer-implemented hidden fields do.
(A) Do performance vary for viewstate according to User controls ?
Performance of view state varies depending on the type of server control to which it is
applied. Label, TextBox, CheckBox, RadioButton, and HyperLink are server controls
that perform well with ViewState. DropDownList, ListBox, DataGrid, and DataList suffer
from poor performance because of their size and the large amounts of data making
roundtrips to the server.
(B) What are benefits and Limitation of using Viewstate for state
management?
Following are the benefits of using Viewstate :-
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No server resources are required because state is contained in a structure in
the page code.
Simplicity.
States are retained automatically.
The values in view state are hashed, compressed, and encoded, thus representing
a higher state of security than hidden fields.