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What is meant by view state?
View State is the method to preserve the Value of the Page and Controls between round trips. It is a Page-Level State Management technique. View State is turned on by default and normally serializes the data in every control on the page regardless of whether it is actually used during a post-back.
Why do we use view state?
View state is used automatically by the ASP.NET page framework to persist information that must be preserved between postbacks. This information includes any non-default values of controls. You can also use view state to store application data that is specific to a page.
What is ViewState and session state?
View state can only be visible from a single page and not multiple pages. Session state value availability is across all pages available in a user session. In session state, user data remains in the server. Data is available to user until the browser is closed or there is session expiration.
How can we store and retrieve values ViewState?
If you need to store extraneous information in ViewState, you can get and set data in ViewState like you would any other key/value collection: //store value in viewstate ViewState[“someValue”] = “Foo”; //retrieve value from viewstate string someValue = ViewState[“someValue”]. ToString();
What is control state?
Control state is designed for storing a control’s essential data (such as a pager control’s page number) that must be available on postback to enable the control to function even when view state has been disabled.
How to save a value to view state?
To save a value to view state, create a new item that contains the value to save and add the item to the view state dictionary. The following example shows an ASP.NET Web page with code that saves a string and an integer value in view state.
When do I need to use VIEWSTATE-Stack Overflow?
View state is used automatically by the ASP.NET page framework to persist information that must be preserved between postbacks. This information includes any non-default values of controls. You can also use view state to store application data that is specific to a page.
How does view state work in SQL Server?
Retains the value of the Control after post-back without using a session. Stores the value of Pages and Control Properties defined in the page. Creates a custom View State Provider that lets you store View State Information in a SQL Server Database or in another data store.
What does the view state do in ASP.NET?
View state is the method that the ASP.NET page framework uses to preserve page and control values between round trips. When the HTML markup for the page is rendered, the current state of the page and values that must be retained during postback are serialized into base64-encoded strings.