difference between control and page viewstate

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difference between control and page view state? if page view state if False then Control view state Work or Not?Can child control view state also work or Not?

Posted 15-Dec-13 3:43am

asifislam

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Sampath Lokuge · Accepted Answer · 2013-12-15T04:18:00

ViewState and ControlState are both mechanisms used in ASP.NET for maintaining data across postbacks. Both are preserved in a hidden field known as _VIEWSTATE.

The differences are:

1)ViewState can be disabled while the Control State cannot be disabled.

2)ViewState is implemented by using EnableViewState property of a control to true.
Control State works even when EnableViewState is off.

To use Control State (for example in a custom control) we have to override OnInit method,call RegisterRequiresControlState method in OnInit method and then override the SaveControlState and LoadControlState methods.

Custom Controls code is written in classes derived from WebControl.

3)Control State is used for small data only.
eg: maintain clicked page number in a GridView even when EnableViewState is off

For more info : Using Control State in ASP.NET 2.0[^]

Control State vs. View State

joginder-banger · Accepted Answer · 2013-12-15T04:21:00

Solution 2

try this link difference-between-viewstate-and-controlstate
check msdn official website control state vs view state

Posted 15-Dec-13 4:21am

joginder-banger

Updated 15-Dec-13 6:07am

v2

Comments

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 15-Dec-13 11:51am

That is MSDN not msn bro. :P :) Please correct.

joginder-banger 15-Dec-13 12:07pm

thanks sir

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 15-Dec-13 12:10pm

Most welcome. :)

anubrij chandra · Accepted Answer · 2013-12-15T08:01:00

Solution 3

For the both of your questions, the answer is NO. if the EnableViewState of parent page is set false then the ViewState for all the controls on the page will not work. same for parent and child controls.

Posted 15-Dec-13 8:01am

anubrij chandra