ASP.NET VIEW STATE INTERVIEW QUESTIONS ANSWERS 2-4 YEARS EXPERIENCED Part 4
31. **Explain the ViewStateTimeout property.**
ViewStateTimeout property specifies the timeout period for ViewState, after which ViewState data is discarded. It helps to prevent ViewState from consuming excessive memory.
32. **What is the impact of ViewState on memory usage?**
ViewState is stored in server memory, so excessive ViewState can increase memory usage and potentially affect server performance, especially in high-traffic scenarios.
33. **How do you maintain ViewState across multiple pages?**
ViewState is specific to individual pages, so to maintain ViewState across multiple pages, you can pass ViewState values as parameters in URLs or store them in Session state or cookies.
34. **What is the ViewStatePageStatePersister class?**
ViewStatePageStatePersister is a class used to customize how ViewState is persisted between postbacks, allowing developers to store ViewState in different locations such as Session state or a database.
35. **What is the ViewStateEncryptionKey property used for?**
ViewStateEncryptionKey property specifies the encryption key used to encrypt and decrypt ViewState contents when ViewState encryption is enabled.
36. **Explain how you can handle ViewState in ASP.NET Core.**
In ASP.NET Core, ViewState is not directly supported. Developers can use alternatives like TempData, Session state, or client-side state management techniques like cookies or local storage.
37. **How do you handle ViewState in Web Forms vs. MVC?**
In Web Forms, ViewState is integral to managing control state, while in MVC, developers typically use other techniques like TempData, Session state, or client-side state management.
38. **What is the ViewStateMode property used for?**
The ViewStateMode property allows developers to specify how ViewState is managed for individual controls. Options include Enabled (default), Disabled, and Inherit.
39. **Explain how ViewState is affected by browser limitations.**
ViewState is stored as a hidden field on the page, and some older browsers may have limitations on the maximum size of hidden fields, which can affect ViewState storage and retrieval.
40. **How do you handle ViewState in stateless environments like Web APIs?**
In stateless environments like Web APIs, ViewState is not available. Developers typically use alternatives like JWT (JSON Web Tokens), custom authentication mechanisms, or database storage for maintaining state between requests.