Can I get viewstate data during Page.OnInit

Donal McWeeney

Hi,

I'm round-tripping some values my page requires using hidden form fields -
my page class requires these values in its OnInit event.

I would like to be able to use viewstate to do this - however the load
viewstate does not happen until after OnInit and before OnLoad.

Is there anything I can do to make the viewstate data available for my
OnInit code. Any pointers to examples gratefully accepted.

Thanks

Donal

Nov 18 '05 #1

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8550

Jeffrey Palermo [MCP]

Donal,
As you stated, viewstate reloads after OnInit and before the Load event.
Because of this, viewstate will never be available in the OnInit phase. Any
code that depends on viewstate must execute after viewstate is loaded. You
must code your page around this requirement.

Best regards,
Jeffrey Palermo

"Donal McWeeney" <ma****@newsgro up.nospam> wrote in message
news:%2******** **********@TK2M SFTNGP09.phx.gb l...

Hi,

I'm round-tripping some values my page requires using hidden form fields -
my page class requires these values in its OnInit event.

I would like to be able to use viewstate to do this - however the load
viewstate does not happen until after OnInit and before OnLoad.

Is there anything I can do to make the viewstate data available for my
OnInit code. Any pointers to examples gratefully accepted.

Thanks

Donal

Nov 18 '05 #2

Steven Cheng[MSFT]

Hi Donal,

I think Jeffery's suggestion is reasonable since the LoadViewState occurs
after the page's Init event and can't be manually changed. Also, as the
asp.net Page's ViewState is based on the normal html input hidden field(
<input type="hidden" name="__VIEWSTA TE"
value="fjk43j53 kj43mefdSds/jfdsjfksdfdsm-" /> ) , if you do need to store
some custom datas in page and be retrieved in the sequential request before
the page's LoadViewSTate, I suggest you try putting some <input
type="hidden" ..> elements on the page and store datas in it. How do you
think ?
If there's any other questions, please feel free to post here. Thanks.

Steven Cheng
Microsoft Online Support

Get Secure! www.microsoft.com/security
(This posting is provided "AS IS", with no warranties, and confers no
rights.)

Nov 18 '05 #3

Donal McWeeney

Thanks for the confirmation guys...

Thanks

Donal

Nov 18 '05 #4

John Saunders

"Donal McWeeney" <ma****@newsgro up.nospam> wrote in message
news:%2******** **********@TK2M SFTNGP09.phx.gb l...

Hi,

I'm round-tripping some values my page requires using hidden form fields -
my page class requires these values in its OnInit event.

I would like to be able to use viewstate to do this - however the load
viewstate does not happen until after OnInit and before OnLoad.

Why not just put the values in your own hidden form fields and read the
values in OnInit? Put them into an HtmlHidden control. No ViewState
involved.

John Saunders

Nov 18 '05 #5

Steven Cheng[MSFT]

You're welcome, Donal.

Nov 18 '05 #6

Donal McWeeney

Thanks John,

Thats what I am doing at the moment - just thought that ViewState would be
cleaner.

Thanks

Donal

"John Saunders" <johnwsaundersi ii at hotmail.com> wrote in message
news:Ok******** *****@TK2MSFTNG P14.phx.gbl...

"Donal McWeeney" <ma****@newsgro up.nospam> wrote in message
news:%2******** **********@TK2M SFTNGP09.phx.gb l...
Hi,

I'm round-tripping some values my page requires using hidden form
fields - my page class requires these values in its OnInit event.

I would like to be able to use viewstate to do this - however the load
viewstate does not happen until after OnInit and before OnLoad.

Why not just put the values in your own hidden form fields and read the
values in OnInit? Put them into an HtmlHidden control. No ViewState
involved.

John Saunders

Nov 18 '05 #7

John Saunders

"Donal McWeeney" <ma****@newsgro up.nospam> wrote in message
news:u1******** ********@tk2msf tngp13.phx.gbl. ..

Thanks John,

Thats what I am doing at the moment - just thought that ViewState would be
cleaner.

It would be cleaner. Just not if you need it in OnInit...

Of course, if you're building custom controls, you can hide the ugliness
behind properties.

John Saunders

Nov 18 '05 #8

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