A Session can store the value on the Server. It can support any type of object to be stored along with our own custom objects. A session is one of the best techniques for State Management because it stores the data as client-based. Now to set the session we need to use a config file. We can set the session on one of the following 2 types of configuration files:.
NET State service. Now configure with the ASP. NET State Service. Step 1: Go To Start and from there go to "Run" and type "services. NET State Service and start the service; by default these services are stopped. Step 3: For configuration with web. Generally the state services and web services are not in the same machine of a dedicated server so for the connection we need to write the stateConnectionString and here we need to provide the IP address or the name of the machine where the state service is running and here my services are run on localhost and is the port number.
The ASP. When the client sends a request to the web server, the web server stores the session data on the state server. The StateServer may be the current system or a different system. But it will be totally independent of IIS. The destination of the StateServer will depend on the web.
If we set it to localhost then it will store data in the local system itself. Otherwise you will get the following exception while trying to store data on the session.
Advantage of State Service. Parameter Description:. Collectives on Stack Overflow. Learn more. How the session work in asp. Ask Question. Asked 10 years, 2 months ago. Active 6 years, 8 months ago. Viewed 27k times. Pratik 11k 22 22 gold badges 65 65 silver badges 99 99 bronze badges.
Try to read this CodeProject article codeproject. Add a comment. Active Oldest Votes. By default there are 3 places where the actual session data can be stored: In-Proc: the session is stored into the memory of the application fastest but if you have multiple servers in a server farm this won't work Out-of-Proc: the data is stored into a separate server which has the State service installed the data is stored in the memory of a separate machine meaning that multiple web servers can work in a web farm SqlServer: the data is stored in SQL Server it's the slowest but most reliable as the session data is stored in a SQL Server database and could servive if the Session server crashes which is not the case with Out-Of-Proc Custom implementation: thanks to the extensibility of ASP.
NET you could write your own session provider and store the data wherever you like. Darin Dimitrov Darin Dimitrov k gold badges silver badges bronze badges. I have a doubt , Lets say, I just created a AboutUs page in asp.
Session: [Stored on Server side] 1. Then the server Returns the SessionID to the client's browser. The following example shows a Web. NET application to use cookieless session identifiers. NET to include the unique session ID lit3py55t21z5v55vlm25s When ASP. NET sends a page to the browser, it modifies any links in the page that use an application-relative path by embedding a session ID value in the links.
Links with absolute paths are not modified. Session state is maintained as long as the user clicks links that have been modified in this manner. NET may not be able to resolve the session ID and associate the request with an existing session. In that case, a new session is started for the request. The session ID is embedded in the URL after the slash that follows the application name and before any remaining file or virtual directory identifier. This enables ASP. To improve the security of your application, you should allow users to log out of your application, at which point the application should call the Abandon method.
This reduces the potential for a malicious user to get the unique identifier in the URL and use it to retrieve private user data stored in the session. By default, the session ID values that are used in cookieless sessions are recycled.
That is, if a request is made with a session ID that has expired, a new session is started by using the SessionID value that is supplied with the request.
This can result in a session unintentionally being shared when a link that contains a cookieless SessionID value is used by multiple browsers. This can occur if the link is passed through a search engine, through an e-mail message, or through another program. You can reduce the chance of session data being shared by configuring the application not to recycle session identifiers. To do this, set the regenerateExpiredSessionId attribute of the sessionState configuration element to true.
This generates a new session ID when a cookieless session request is made with an expired session ID. This is because ASP. You can implement a custom class to supply and validate SessionID values. For an example, see the example provided for the CreateSessionID method. For example, you might have a Web application that associates a unique identifier with non-ASP.
NET session state. If your custom class supports cookieless session identifiers, you must implement a solution for sending and retrieving session identifiers in the URL. NET session state supports several storage options for session variables. Each option is identified as a session-state Mode type. The default behavior is to store session variables in the memory space of the ASP. NET worker process. However, you can also specify that session state should be stored in a separate process, in a SQL Server database, or in a custom data source.
If you do not want session state enabled for your application, you can set the session mode to Off. NET provides two events that help you manage user sessions. Session events are specified in the Global. If the Global. NET application is modified, the application will be restarted and any values stored in application state or session state will be lost.
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