How we used viewstate and what is the importance of viewstate in asp.net??

Question

User-361343671 posted
Explain in brief??

Answer 1

User475983607 posted

Explain in brief??

ViewState is a very mature and well documented ASP.NET feature.  Basically, ViewState maintains the state of all server controls in the web form across post backs.

Please see the openly published reference documentation.

https://msdn.microsoft.com/en-us/library/bb386448.aspx

https://msdn.microsoft.com/en-us/library/ms972976.aspx

Answer 2

User-1838255255 posted

Hi Puspa.007,

According to your description, ViewState is used for save all control's state value, it is a object(name/value) collections. it is different from the session, it is belong to the page level, if you close the page, all value will be clear.

we could use it to store the form data or save table data provisional. About how to use it, please check the following samples:

What is View State and How it Works in ASP.Net:

http://www.c-sharpcorner.com/UploadFile/225740/what-is-view-state-and-how-it-works-in-Asp-Net53/  

Using DataTable as Temporary storage table stored in viewstate in ASP.Net:

https://www.aspsnippets.com/Articles/Using-DataTable-as-Temporary-storage-table-in-ASPNet.aspx 

Best Regards,

Eric Du