ViewState timing driving me nuts - please help

[Frank]

Can someone please tell me when the ViewState is loaded? My
understanding, based on
http://msdn.microsoft.com/library/de...nLifecycle.asp
is that it should be loaded before the Page_Load event, however, given
the following code I don't get the expected results.
private void Page_Load(objec t sender, System.EventArg s e)
{
if (Page.IsPostBac k & ViewState["CurrentTab "] != null)
{
_currentTab = (PageTabs)ViewS tate["CurrentTab "];
}
paintTabStrips( );
}
The ViewState is set during the first call to the page. And just to be
sure of it, when I step through this code on the first iteration
(Page.IsPostBac k=false) the value is in the ViewState, however on
PostBacks it is not there!!! AAARRRRGGGHHH!! !!!

Am I missing something fundamental or is it just my mind that has gone
lost?

Thanks

[dnz]

Hi Frank,

what is the type of PageTabs?
Frank skrev:

Can someone please tell me when the ViewState is loaded? My
understanding, based on
http://msdn.microsoft.com/library/de...nLifecycle.asp
is that it should be loaded before the Page_Load event, however, given
the following code I don't get the expected results.
private void Page_Load(objec t sender, System.EventArg s e)
{
if (Page.IsPostBac k & ViewState["CurrentTab "] != null)
{
_currentTab = (PageTabs)ViewS tate["CurrentTab "];
}
paintTabStrips( );
}
The ViewState is set during the first call to the page. And just to be
sure of it, when I step through this code on the first iteration
(Page.IsPostBac k=false) the value is in the ViewState, however on
PostBacks it is not there!!! AAARRRRGGGHHH!! !!!

Am I missing something fundamental or is it just my mind that has gone
lost?

Thanks

[Frank]

I'm wouldn't have though it would matter but:

[Flags]
public enum PageTabs
{
SummaryList = 0x1,
DebtorInfo = 0x2,
AdditionalInfo = 0x4,
SkipDetails = 0x8,
AccountInfo = 0x10,
AddressHistory = 0x20,
Invoices = 0x40,
AddressInfo = 0x80,
Search = 0x100,
Results = 0x200,
CreditReport = 0x400,
QMail = 0x800,
Diary = 0x1000
}

[Jason Myers]

Have u ensured that the viewstate property on the control is set to True?

"Frank" <mr********@hot mail.com> wrote in message
news:11******** **************@ g43g2000cwa.goo glegroups.com.. .

Can someone please tell me when the ViewState is loaded? My
understanding, based on
http://msdn.microsoft.com/library/de...nLifecycle.asp
is that it should be loaded before the Page_Load event, however, given
the following code I don't get the expected results.
private void Page_Load(objec t sender, System.EventArg s e)
{
if (Page.IsPostBac k & ViewState["CurrentTab "] != null)
{
_currentTab = (PageTabs)ViewS tate["CurrentTab "];
}
paintTabStrips( );
}
The ViewState is set during the first call to the page. And just to be
sure of it, when I step through this code on the first iteration
(Page.IsPostBac k=false) the value is in the ViewState, however on
PostBacks it is not there!!! AAARRRRGGGHHH!! !!!

Am I missing something fundamental or is it just my mind that has gone
lost?

Thanks

[Frank]

This is not for a control per se...it's just the ViewState bag for the
page, and yes, it is enabled for the page.

Thanks,
Frank
Jason Myers wrote:

Have u ensured that the viewstate property on the control is set to True?

"Frank" <mr********@hot mail.com> wrote in message
news:11******** **************@ g43g2000cwa.goo glegroups.com.. .

Can someone please tell me when the ViewState is loaded? My
understanding, based on
http://msdn.microsoft.com/library/de...nLifecycle.asp
is that it should be loaded before the Page_Load event, however, given
the following code I don't get the expected results.
private void Page_Load(objec t sender, System.EventArg s e)
{
if (Page.IsPostBac k & ViewState["CurrentTab "] != null)
{
_currentTab = (PageTabs)ViewS tate["CurrentTab "];
}
paintTabStrips( );
}
The ViewState is set during the first call to the page. And just to be
sure of it, when I step through this code on the first iteration
(Page.IsPostBac k=false) the value is in the ViewState, however on
PostBacks it is not there!!! AAARRRRGGGHHH!! !!!

Am I missing something fundamental or is it just my mind that has gone
lost?

Thanks

[dnz]

Hi Frank,

I cannot reproduce your problem. When I do as you described, it works
as it should.

Try Nikhil Khotari's Web Development Helper (
http://www.nikhilk.net/Project.WebDevHelper.aspx ) and inspect the
serialized viewstate in the hidden field in the html.

[Frank]

Here is a break-down of methods that are called on the page. What I
find strange is that the ViewState property bag is not null when I
check in Page_Load, just the value I need.

Page.IsPostBack == false:

OnInit
InitializeCompo nent
(custom - ignore) InitializeSessi on
(custom - ignore) paintPanel
(custom - ignore) buildPanelDebto rInfo
(custom - ignore) bindPhoneNumber Grid
(datagrid - ignore) _uiPhoneNumberG rid_ItemCreated
(datagrid - ignore) _uiPhoneNumberG rid_ItemDataBou nd
(datagrid - ignore) _uiPhoneNumberG rid_ItemCreated
(datagrid - ignore) _uiPhoneNumberG rid_ItemDataBou nd
(datagrid - ignore) _uiPhoneNumberG rid_ItemCreated
(datagrid - ignore) _uiPhoneNumberG rid_ItemDataBou nd
(datagrid - ignore) _uiPhoneNumberG rid_ItemCreated
(datagrid - ignore) _uiPhoneNumberG rid_ItemDataBou nd
(datagrid - ignore) _uiPhoneNumberG rid_ItemCreated
(datagrid - ignore) _uiPhoneNumberG rid_ItemDataBou nd
(custom - ignore) paintPanel **********
ViewState["CurrentTab "] set here
Page_Load **********
ViewState["CurrentTab "] != null
(custom - ignore) paintTabStrips

Page.IsPostBack == true:

OnInit
InitializeCompo nent
(custom - ignore) InitializeSessi on
(datagrid - ignore) _uiPhoneNumberG rid_ItemCreated
(datagrid - ignore) _uiPhoneNumberG rid_ItemCreated
(datagrid - ignore) _uiPhoneNumberG rid_ItemCreated
(datagrid - ignore- ignore) _uiPhoneNumberG rid_ItemCreated
(datagrid - ignore) _uiPhoneNumberG rid_ItemCreated
Page_Load **********
ViewState["CurrentTab "] == null
(custom - ignore) paintTabStrips
(custom - ignore) _uiDebtorInfoSa ve_Click
(custom - ignore) persistData
(custom - ignore) _uiDebtorInfoSa ve_Click

I am going absolutely crazy with this. This is not the only page I
have that seems to be *randomly* managing ViewState.


dnz wrote:

Hi Frank,

I cannot reproduce your problem. When I do as you described, it works
as it should.

Try Nikhil Khotari's Web Development Helper (
http://www.nikhilk.net/Project.WebDevHelper.aspx ) and inspect the
serialized viewstate in the hidden field in the html.