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From: ®aviBhatia
Message 5 in Discussion
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Questions in .Net Interview Questions section
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®aviBhatia
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Questions in .Net Interview Questions section
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Message 1 in Discussion
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®aviBhatia
This is regarding the Questions in .Net Interview Questions
section of this group. The below given question in ASP.Net section What is
view state and use of it?
The current property settings of an ASP.NET page and those of any ASP.NET
server controls contained within the page. ASP.NET can detect when a form is
requested for the first time versus when the form is posted (sent to the
server), which allows you to program accordingly. I dont think, it s a
complete post because the answer neither tells what the viewstate is, nor it
says the use of it. Here is the explaination in brief
Page level state is information maintained when an element on the web form page
causes a subsequent request to the server for the same page - referred to as
'postback'. This is appropriately called ViewState as the data involved is
usually, though not necessarily, shown to the user directly within the page
output.
The Control.ViewState property is associated with each server control in your
web form and provides a dictionary object for retaining values between such
multiple requests for the same page. This is the method that the page uses to
preserve page and control property values between round trips.
When the page is processed, the current state of the page and controls is
hashed into a string and saved in the page as a hidden field. When the page is
posted back to the server, the page parses the view state string at page
initialization and restores property information in the page.
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