ASP.NET - Client-side state management and Server-side
state management - Dec 25, 2009 at 19:55 PM by Nishant Kumar
Define Client-side state management and Server-side state management.
Client-side state management
This maintains information on the client's machine using Cookies, View State,
and Query Strings.
A cookie is a small text file on the client machine either in the client's file
system or memory of client browser session. Cookies are not good for sensitive
data. Moreover, Cookies can be disabled on the browser. Thus, you can't rely on
cookies for state management.
Each page and each control on the page has View State property. This property
allows automatic retention of page and controls state between each trip to
server. This means control value is maintained between page postbacks.
Viewstate is implemented using _VIEWSTATE, a hidden form field which gets
created automatically on each page. You can't transmit data to other page using
Querystring can maintain limited state information. Data can be passed
from one page to another with the URL but you can send limited size of data
with the URL. Most browsers allow a limit of 255 characters on URL length.
Server-side state management
This kind of mechanism retains state in the server.
The data stored in an application object can be shared by all the sessions
of the application. The application object stores data in the key value pair.
Session state stores session-specific information and the information is
visible within the session only. ASP.NET creates unique sessionId for each
session of the application. SessionIDs are maintained either by an HTTP cookie
or a modified URL, as set in the application's configuration settings. By
default, SessionID values are stored in a cookie.
Database can be used to store large state information. Database support is used
in combination with cookies or session state.
Selection of an authentication provider is done through the
entries in the web.config file for an application.The modes of authentication
Datagrid: The HTML
code generated has an HTML TABLE
element created for the particular DataRow and is a tabular representation
with Columns and Rows. Datagrid has a in-built support for Sort, Filter and
paging the Data...........
Authorization is a process that takes place based on the
authentication of the user........