What are benefits and limitations of using Viewstate for state management?

Q

.NET INTERVIEW QUESTIONS - What are benefits and limitations of using Viewstate for state management?

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A

Following are the benefits of using Viewstate :-
* No server resources are required because state is in a structure in the page code.
* Simplicity.
* States are retained automatically.
* The values in view state are hashed, compressed, and encoded, thus representing a higher state of security than hidden fields.
* View state is good for caching data in Web frame configurations because the data is cached on the client.

Following are the limitations of using Viewstate:-
* Page loading and posting performance decreases when large values are stored because view state is stored in the page.
* Although view state stores data in a hashed format, it can still be tampered because it is stored in a hidden field on the page. The information in the hidden field can also be seen if the page output source is viewed directly, creating a potential security risk.

Following is an example of storing values in view state.
this.ViewState["EnterTime"] = DateTime.Now.ToString();

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