Correct me if I'm wrong but isn't Viewstate used to restore the
previous values to forms and controls? If it was disabled I suppose a
postback would clear all entries? Thanks.



On May 22, 11:59 am, "P.Bixam" <[email protected]> wrote:
> Hi Guys,
>
> While going through ASP.NET <http://asp.net/> 4.0 features like
> ‘ViewStateMode’ – I got a doubt
>
> i.e
>
> Actually till ASP.NET <http://asp.net/> 3.5 we can’t work by disabling
> ViewState at Page level and enable it for individual controls – this will
> not work.
>
> To resolve this issue – ASP.NET <http://asp.net/> 4.0 introduced
> ‘ViewStateMode’ – using which we can able to Disable at Page level and
> enable it for the individual controls – this is working fine,
>
> Even in case of asp.net 3.5, we can enable it for Page and disable it for
> the individual controls – I have checked it – working fine – what is the
> problem with this approach?
>
> And Even with ‘ViewStateMode’ also we need to make ‘EnableViewState=true’ at
> Page level – otherwise it won’t work,
>
> Other disadvantage of disabling ‘ViewStateMode’ at page level turns-off at
> server-side also (we can’t use ViewState[“key”]=”Value”; in code behind
> file).
>
> So again we need to enable ‘ViewStateMode’ at Page level and disable for
> individual controls………the same process as in the ASP.NET <http://asp.net/>3.5
>
> So what Is the main use of ‘ViewStateMode’  ASP.NET <http://asp.net/> 4.0
> other than ‘EnableViewState’ ?
>
> Can you please clarify me about this.
>
> *Thanks & Regards*
>
> *P. Bixam*

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