Which is better session or ViewState? 1 Answer. For large amounts of data, Session is way more efficient.
What is the difference between a VIEWSTATE and a session?
Session is used mainly for storing user specific data. In the case of session you can use the value for the whole session until the session expires or the user abandons the session. Viewstate is the type of data that has scope only in the page in which it is used.
What is the use of session state?
In session state, user data remains in the server. Data is available to user until the browser is closed or there is session expiration. Information is stored on the client’s end only. Information is stored on the server. used to allow the persistence of page-instance-specific data.
What is the use of VIEWSTATE in http?
Also, HTTP is a stateless protocol, i.e. it cannot hold client information on the webpage. So it need to maintain the state of a page and the server-side as well, State management is done. ViewState and SessionState are used for client-side state management and server-side state management respectively.
What is the use of the view state?
View Stateon the other hand is information specific to particular web page. It is stored in a hidden field so that it isn't visible to the user. It is used to maintain the user's illusion that the page remembers what he did on it the last time - dont give him a clean page every time he posts back. Check this page for more. Share Improve this answer
Does ViewState affect performance?
To accomplish our tasks, we use ViewState a lot, but as we know, it doesn't come free - it has a performance overhead. The ViewState is stored on the page in the form of a hidden variable. Its always advised to use the ViewState as little as possible. We also have other ways to reduce the performance overhead.
What are the advantages of sessions state?
The advantages of using session state are as follows: - It ensures data durability, since session state retains data even if ASP.NET work process restarts as data in Session State is stored in other process space. - It works in the multi-process configuration, thus ensures platform scalability.
What is difference between session and application state?
"Application state" = the state of the application, which is the same for all users. "Session State" = state specific to this particular user session. Each user has separate session state.
What is the difference between the ASP session state and the ASP.NET session state?
In Asp, the session is cookie dependent . That is, Asp session only function when browser supports cookies. While Asp.Net supports cookieless session, so the session in Asp.Net is cookie independent .
What is the disadvantage of session?
Disadvantages: 1. Performance overhead in case of large number of user, because of session data stored in server memory. 2. Overhead involved in serializing and De-Serializing session data because in case of StateServer and SQLServer session mode we need to serialize the object before store.
What are the disadvantages of storing session state in the client tier?
What are some disadvantages of storing session state in cookies?Cookies are controlled by programming a low-level API, which is more difficult to implement than some other approaches.All data for a session are kept on the client.More items...
What is session vs cookie?
Cookies are client-side files on a local computer that hold user information. Sessions are server-side files that contain user data. Cookies end on the lifetime set by the user. When the user quits the browser or logs out of the programmed, the session is over.
What is session state in HTTP?
Session state is an ASP.NET Core scenario for storage of user data while the user browses a web app. Session state uses a store maintained by the app to persist data across requests from a client. The session data is backed by a cache and considered ephemeral data.
What is PostBack C#?
PostBack is the name given to the process of submitting an ASP.NET page to the server for processing. PostBack is done if certain credentials of the page are to be checked against some sources (such as verification of username and password using database).
How many types of session are there?
There are three kinds of session, and they are listed as follows 1. Inprocess.
Where is session state stored?
Session state can be stored in one of the following modes: In - Process: Stored in the same ASP.Net Process. State Server: Stored in the some other system. SQL Server: Stored in the SQLServer database.
How do you maintain session state?
This means that user data is not persisted from one Web page to the next in a Web site. One way to maintain state is through the use of cookies. Cookies store a set of user specific information, such as a reference identifier for a database record that holds customer information.
What are the advantages of using sessions in PHP?
PHP benefits of storing session data in databaseLimit the number of logins. For instance if your application should allow only 10 logins at a time , then the session table can be checked to find the number of users already logged in. ... Block multiple logins for same username. ... Monitor user activity. ... Logout a user.
Which of the following are the advantages of application sessions?
Advantages of Application SessionsApplication sessions encapsulate end user's security context. ... An application session can be associated with multiple database sessions simultaneously.They are accessible by all nodes in an Oracle Real Application Clusters (Oracle RAC) environment.
What are the advantages of cookies and session handling?
Here are some of the advantages of using cookies to store session state. Cookies are simple to use and implement. Occupies less memory, do not require any server resources and are stored on the user's computer so no extra burden on server.
What are the ways for session tracking?
There are four techniques used in Session tracking:Cookies.Hidden Form Field.URL Rewriting.HttpSession.
What is viewstate used for?
ViewState It can be used to store information that you wish to access from same web page.
What is session state?
SessionState has the tendency for the persistence of user-specific data and is maintained on the server-side. This data remains available until the time that the session is completed or the browser is closed by the user. The session state is only valid for type objects.
Why is data not secure?
The data of the previous page is no longer available when another page is loaded. Also, Data is not secure in this case because it is exposed to clients. Encryption can be used for data security. SessionState: It is maintained at session-level and data can be accessed across all pages in the web application.
Is HTTP stateless?
It is recreated each time and posted to the server. Also, HTTP is a stateless protocol , i.e. it cannot hold client information on the webpage.
What is session state?
Session State contains information that is pertaining to a specific session (by a particular client/browser/machine) with the server. It's a way to track what the user is doing on the site.. across multiple pages ...amid the statelessness of the Web. e.g. the contents of a particular user's shopping cart is session data. Cookies can be used for session state.#N#View State on the other hand is information specific to particular web page. It is stored in a hidden field so that it isn't visible to the user. It is used to maintain the user's illusion that the page remembers what he did on it the last time - dont give him a clean page every time he posts back. Check this page for more.
Where is session state saved?
Session state is saved on the server, ViewState is saved in the page.
What is view state?
Cookies can be used for session state. View State on the other hand is information specific to particular web page. It is stored in a hidden field so that it isn't visible to the user. It is used to maintain the user's illusion that the page remembers what he did on it the last time - dont give him a clean page every time he posts back.
How many reputations do you need to answer a highly active question?
Highly active question. Earn 10 reputation (not counting the association bonus) in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
Can state be shared in the Web Farm/Web Garden?
Can be persisted in memory, which makes it a fast solution. Which means state cannot be shared in the Web Farm/Web Garden.
Can you use Viewstate on the same page?
If you want to store information that you want to access from the same page, then you can use Viewstate
What is session state?
Session State is another state management technique to store state, meaning it helps in storing and using values from previous requests. Whenever the user requests a web form from a web application it will get treated as a new request. an ASP.NET session will be used to store the previous requests for a specified time period.
What is view state?
View State is a technique to maintain the state of controls during page post-back, meaning it stores the page value at the time of post-back (sending and receiving information from the server) of your page and the view state data can be used when the page is posted back to the server and a new instance of the page is created. View state data is nothing but a serialized base-64 encoded string stored in a hidden input field on the page and it travels between the browser and the server on every user request and response.
What is the disadvantage of session data loss?
The disadvantage of session data loss is due to the worker process recycle that can be reduced using another mode, the state server mode. Reference MSDN Definition StateServer mode, that stores session state in a separate process called the ASP.NET state service. This ensures that session state is preserved if the web application is restarted and also makes session state available to multiple Web servers in a Web farm. ASP.NET is a Windows services that stores the session variable data in their process. Procedure to set up state server mode Go to Run then enter "Services.msc" then Start ASP.NET State Service. By default ASP.NET state service is in manual mode.
Where are session variables stored?
Session variables are single-user global data stored on the web server, meaning by default a session state variable is stored in the web server memory and is available across all pages but it will be for a single session. SessionID Client Machine Cookies are being used by a session to store a session id.
What is ASP.NET state service?
ASP.NET is a Windows services that stores the session variable data in their process. Procedure to set up state server mode Go to Run then enter "Services.msc" then Start ASP.NET State Service. By default ASP.NET state service is in manual mode.
Where is application state stored?
Application state is stored in memory on the server and is faster than storing and retrieving information in a database. Unlike session state, which is specific to a single user session, application state applies to all users and sessions. Application state is stored in an instance of the HttpApplicationState class. This class exposes a key-value dictionary of objects. Application state variables are also used to store data when navigatiing from one page to another. It's multi-user Global data meaning it will be accessible across all pages and all sessions. Application state variables are stored on the web server in ASP.NET worker process memory. Sample Code Addition of data in application variables.
What happens if you restart a sate service?
Restart of sate service could lead to session data loss.
What is the difference between viewstate and session?
4.ViewState can only hold a string or serializable data while session can hold a large multitude type of data. This makes the amount of data in ViewState much smaller compared to session’s. 5.Session can replicate or access data to a new page or window while ViewState isn’t capable of this feature.
What is viewstate session?
The problem involves a computer user accessing a web page in a specific period of time. After some time of use, or after the user closed the application, the web page’s information and access is deleted from recent use logs.
Why is viewstate used?
ViewState is mostly used to hold a small amount of data (usually a string and other serialized data) on the current page. Also, ViewState consumes more bandwidth compared to session but less memory and memory space. ViewState doesn’t involve too much memory since all the data is lost the moment the page is closed.
What is viewstate in ASP.NET?
1.Aside from ViewState and session, other ASP.NET solutions include application variables, cache, and cookies. 2.ViewState and session can both run and be accessible in a server environment. 3.ViewState is used on the client side while session is used on the server side. Being on the client side makes ViewState have no expiration.
Where is session stored?
Session is valid for any type of objects and is stored in the server memory of the browser . The data it retains is the data of the computer user or, in other words, user specific data. The data is available until the user closes the browser application or the session expires on its own.
Does a session have a memory receptacle?
Unlike in ViewState, the data in session can be accessed or replicated into another window or page within the session. Sessions also don’t have the ability to disable or enable specific controls. Session also involves different kinds of data to be stored in its memory receptacle. Session also has a bigger memory compared to ViewState since it uses server memory. The downside of this is that the session has an expiration time, and the quantity of data stored in the server memory can affect the time server load.
Does ViewState use memory?
ViewState doesn’t involve too much memory since all the data is lost the moment the page is closed. Meanwhile, session is more commonly used for Web pages and affects not only the page but the whole application and entire duration of a user using that particular browser or page.
