Invalid ViewState Error after Multiple PostBacks

[Jamie]

I am receiving an Invalid ViewState error after posting back to the same page
twice. Consistently the error occurs after the second postback and not after
the first.

I have looked into creating a static machinekey in the machine.config and
that did not help. I believe that issue only occurred when there was an
inconsistent viewstate error. The error I am faced with consistently occurs.

Are there any known problems with the ViewState when posting back to the
same page multiple times? Any help would be much appreciated.

[S. Justin Gengo]

Jamie,

What's the exact error being returned?

--
Sincerely,

S. Justin Gengo, MCP
Web Developer / Programmer

www.aboutfortunate.com

"Out of chaos comes order."
Nietzsche
"Jamie" <Ja***@discussions.microsoft.com> wrote in message
news:51**********************************@microsof t.com...

I am receiving an Invalid ViewState error after posting back to the same
page
twice. Consistently the error occurs after the second postback and not
after
the first.

I have looked into creating a static machinekey in the machine.config and
that did not help. I believe that issue only occurred when there was an
inconsistent viewstate error. The error I am faced with consistently
occurs.

Are there any known problems with the ViewState when posting back to the
same page multiple times? Any help would be much appreciated.

[Jamie]

Justin,

See below...

Exception Details: System.Web.HttpException: The viewstate is invalid for
this page and might be corrupted.

Source Error:

An unhandled exception was generated during the execution of the current web
request. Information regarding the origin and location of the exception can
be identified using the exception stack trace below.

Stack Trace:

[HttpException (0x80004005): The viewstate is invalid for this page and
might be corrupted.]
System.Web.UI.Page.LoadPageStateFromPersistenceMed ium() +139
System.Web.UI.Page.LoadPageViewState() +17
System.Web.UI.Page.ProcessRequestMain() +423


"S. Justin Gengo" wrote:

Jamie,

What's the exact error being returned?

--
Sincerely,

S. Justin Gengo, MCP
Web Developer / Programmer

www.aboutfortunate.com

"Out of chaos comes order."
Nietzsche
"Jamie" <Ja***@discussions.microsoft.com> wrote in message
news:51**********************************@microsof t.com...

I am receiving an Invalid ViewState error after posting back to the same
page
twice. Consistently the error occurs after the second postback and not
after
the first.

I have looked into creating a static machinekey in the machine.config and
that did not help. I believe that issue only occurred when there was an
inconsistent viewstate error. The error I am faced with consistently
occurs.

Are there any known problems with the ViewState when posting back to the
same page multiple times? Any help would be much appreciated.

[S. Justin Gengo]

Jamie,

See if this helps...

http://www.extremeexperts.com/Net/FA...isCorrupt.aspx

--
Sincerely,

S. Justin Gengo, MCP
Web Developer / Programmer

www.aboutfortunate.com

"Out of chaos comes order."
Nietzsche
"Jamie" <Ja***@discussions.microsoft.com> wrote in message
news:44**********************************@microsof t.com...

Justin,

See below...

Exception Details: System.Web.HttpException: The viewstate is invalid for
this page and might be corrupted.

Source Error:

An unhandled exception was generated during the execution of the current
web
request. Information regarding the origin and location of the exception
can
be identified using the exception stack trace below.

Stack Trace:

[HttpException (0x80004005): The viewstate is invalid for this page and
might be corrupted.]
System.Web.UI.Page.LoadPageStateFromPersistenceMed ium() +139
System.Web.UI.Page.LoadPageViewState() +17
System.Web.UI.Page.ProcessRequestMain() +423


"S. Justin Gengo" wrote:

Jamie,

What's the exact error being returned?

--
Sincerely,

S. Justin Gengo, MCP
Web Developer / Programmer

www.aboutfortunate.com

"Out of chaos comes order."
Nietzsche
"Jamie" <Ja***@discussions.microsoft.com> wrote in message
news:51**********************************@microsof t.com...

>I am receiving an Invalid ViewState error after posting back to the same
>page
> twice. Consistently the error occurs after the second postback and not
> after
> the first.
>
> I have looked into creating a static machinekey in the machine.config
> and
> that did not help. I believe that issue only occurred when there was
> an
> inconsistent viewstate error. The error I am faced with consistently
> occurs.
>
> Are there any known problems with the ViewState when posting back to
> the
> same page multiple times? Any help would be much appreciated.

[Jamie]

Unfortunately I have already tried setting the EnableViewStateMac attribute =
"false" and it did not fix the issue. Also, I am not using Server.Transfer
on the page.

"S. Justin Gengo" wrote:

Jamie,

See if this helps...

http://www.extremeexperts.com/Net/FA...isCorrupt.aspx

--
Sincerely,

S. Justin Gengo, MCP
Web Developer / Programmer

www.aboutfortunate.com

"Out of chaos comes order."
Nietzsche
"Jamie" <Ja***@discussions.microsoft.com> wrote in message
news:44**********************************@microsof t.com...

Justin,

See below...

Exception Details: System.Web.HttpException: The viewstate is invalid for
this page and might be corrupted.

Source Error:

An unhandled exception was generated during the execution of the current
web
request. Information regarding the origin and location of the exception
can
be identified using the exception stack trace below.

Stack Trace:

[HttpException (0x80004005): The viewstate is invalid for this page and
might be corrupted.]
System.Web.UI.Page.LoadPageStateFromPersistenceMed ium() +139
System.Web.UI.Page.LoadPageViewState() +17
System.Web.UI.Page.ProcessRequestMain() +423


"S. Justin Gengo" wrote:

Jamie,

What's the exact error being returned?

--
Sincerely,

S. Justin Gengo, MCP
Web Developer / Programmer

www.aboutfortunate.com

"Out of chaos comes order."
Nietzsche
"Jamie" <Ja***@discussions.microsoft.com> wrote in message
news:51**********************************@microsof t.com...
>I am receiving an Invalid ViewState error after posting back to the same
>page
> twice. Consistently the error occurs after the second postback and not
> after
> the first.
>
> I have looked into creating a static machinekey in the machine.config
> and
> that did not help. I believe that issue only occurred when there was
> an
> inconsistent viewstate error. The error I am faced with consistently
> occurs.
>
> Are there any known problems with the ViewState when posting back to
> the
> same page multiple times? Any help would be much appreciated.

[S. Justin Gengo]

Jamie,

Is it possible for you to post the code or at least the parts of it or an
example that you deem relevant? It's going to be almost impossible to figure
out what's going on without seeing an example.

Thanks,

S. Justin Gengo, MCP
Web Developer / Programmer

www.aboutfortunate.com

"Out of chaos comes order."
Nietzsche
"Jamie" <Ja***@discussions.microsoft.com> wrote in message
news:79**********************************@microsof t.com...

Unfortunately I have already tried setting the EnableViewStateMac
attribute =
"false" and it did not fix the issue. Also, I am not using
Server.Transfer
on the page.

"S. Justin Gengo" wrote:

Jamie,

See if this helps...

http://www.extremeexperts.com/Net/FA...isCorrupt.aspx

--
Sincerely,

S. Justin Gengo, MCP
Web Developer / Programmer

www.aboutfortunate.com

"Out of chaos comes order."
Nietzsche
"Jamie" <Ja***@discussions.microsoft.com> wrote in message
news:44**********************************@microsof t.com...

> Justin,
>
> See below...
>
> Exception Details: System.Web.HttpException: The viewstate is invalid
> for
> this page and might be corrupted.
>
> Source Error:
>
> An unhandled exception was generated during the execution of the
> current
> web
> request. Information regarding the origin and location of the exception
> can
> be identified using the exception stack trace below.
>
> Stack Trace:
>
> [HttpException (0x80004005): The viewstate is invalid for this page and
> might be corrupted.]
> System.Web.UI.Page.LoadPageStateFromPersistenceMed ium() +139
> System.Web.UI.Page.LoadPageViewState() +17
> System.Web.UI.Page.ProcessRequestMain() +423
>
>
>
>
> "S. Justin Gengo" wrote:
>
>> Jamie,
>>
>> What's the exact error being returned?
>>
>> --
>> Sincerely,
>>
>> S. Justin Gengo, MCP
>> Web Developer / Programmer
>>
>> www.aboutfortunate.com
>>
>> "Out of chaos comes order."
>> Nietzsche
>> "Jamie" <Ja***@discussions.microsoft.com> wrote in message
>> news:51**********************************@microsof t.com...
>> >I am receiving an Invalid ViewState error after posting back to the
>> >same
>> >page
>> > twice. Consistently the error occurs after the second postback and
>> > not
>> > after
>> > the first.
>> >
>> > I have looked into creating a static machinekey in the
>> > machine.config
>> > and
>> > that did not help. I believe that issue only occurred when there
>> > was
>> > an
>> > inconsistent viewstate error. The error I am faced with
>> > consistently
>> > occurs.
>> >
>> > Are there any known problems with the ViewState when posting back to
>> > the
>> > same page multiple times? Any help would be much appreciated.
>>
>>
>>

[JIMCO Software]

Jamie wrote:

Justin,

See below...

Exception Details: System.Web.HttpException: The viewstate is invalid
for this page and might be corrupted.

Source Error:

An unhandled exception was generated during the execution of the
current web request. Information regarding the origin and location of
the exception can be identified using the exception stack trace below.

Stack Trace:

[HttpException (0x80004005): The viewstate is invalid for this page
and might be corrupted.]
System.Web.UI.Page.LoadPageStateFromPersistenceMed ium() +139
System.Web.UI.Page.LoadPageViewState() +17
System.Web.UI.Page.ProcessRequestMain() +423

If you do a View / Source on the error page, you'll get a more complete
stack trace in the HTML comment at the bottom of the page.

--
Jim Cheshire
JIMCO Software
http://www.jimcosoftware.com

FrontPage add-ins for FrontPage 2000 - 2003

[Jamie]

I stripped the code down a little but here it is... There are two classes: 1
regular aspx page "Class1.aspx" and another web control "WebControl.cs" that
is implemented by Class1. Class1 passes several values to WebControl.cs via
the ViewState which also gets changed during the rendering process.

public class Class1 : System.Web.UI.Page
{
protected Controls.WebControl WebCtl;
protected System.Web.UI.WebControls.Repeater ceParamRep;
protected System.Web.UI.HtmlControls.HtmlForm frmDefault;
protected System.Web.UI.WebControls.Label headerlabel;

private void Page_Load(object sender, System.EventArgs e)
{
string passedItem;
WebControl.PassedItem = passedItem;
}
}

public class WebControl : System.Web.UI.WebControls.WebControl,
System.Web.UI.IPostBackDataHandler
{
[Bindable(true),
Category("Item"),
DefaultValue("")]
public string PassedItem
{
get
{
object obj = ViewState["passedItem"];
return (obj == null) ? String.Empty : (string)obj;
}
set
{
ViewState["passedItem"] = value;
}
}

protected override void Render(HtmlTextWriter output)
{
if (Page != null)
{
output.Write(this.PassedItem);
}
}

bool IPostBackDataHandler.LoadPostData(string postDataKey,
NameValueCollection postCollection)
{
bool change = false;
string ssvalue = postCollection[this.SSHelper];
if (ssvalue != null)
{
if(String.Compare(ssvalue,this.PassedItem.ToString (),true) != 0)
{
this.PassedItem = ssvalue;
// If there is a change, raise a change event.
change = true;
}
}
string modevalue = postCollection[this.ModeHelper];
if (modevalue !=null)
{
if(String.Compare(modevalue,this.Mode.ToString(),t rue) != 0)
{
this.Mode = modevalue;
change = true;
}
}
return change;
}

void IPostBackDataHandler.RaisePostDataChangedEvent()
{
// There was a change, so raise any events.
if (ConfigurationChanged != null)
{
ConfigurationChanged(this, EventArgs.Empty);
}
}

"S. Justin Gengo" wrote:

Jamie,

Is it possible for you to post the code or at least the parts of it or an
example that you deem relevant? It's going to be almost impossible to figure
out what's going on without seeing an example.

Thanks,

S. Justin Gengo, MCP
Web Developer / Programmer

www.aboutfortunate.com

"Out of chaos comes order."
Nietzsche
"Jamie" <Ja***@discussions.microsoft.com> wrote in message
news:79**********************************@microsof t.com...

Unfortunately I have already tried setting the EnableViewStateMac
attribute =
"false" and it did not fix the issue. Also, I am not using
Server.Transfer
on the page.

"S. Justin Gengo" wrote:

Jamie,

See if this helps...

http://www.extremeexperts.com/Net/FA...isCorrupt.aspx

--
Sincerely,

S. Justin Gengo, MCP
Web Developer / Programmer

www.aboutfortunate.com

"Out of chaos comes order."
Nietzsche
"Jamie" <Ja***@discussions.microsoft.com> wrote in message
news:44**********************************@microsof t.com...
> Justin,
>
> See below...
>
> Exception Details: System.Web.HttpException: The viewstate is invalid
> for
> this page and might be corrupted.
>
> Source Error:
>
> An unhandled exception was generated during the execution of the
> current
> web
> request. Information regarding the origin and location of the exception
> can
> be identified using the exception stack trace below.
>
> Stack Trace:
>
> [HttpException (0x80004005): The viewstate is invalid for this page and
> might be corrupted.]
> System.Web.UI.Page.LoadPageStateFromPersistenceMed ium() +139
> System.Web.UI.Page.LoadPageViewState() +17
> System.Web.UI.Page.ProcessRequestMain() +423
>
>
>
>
> "S. Justin Gengo" wrote:
>
>> Jamie,
>>
>> What's the exact error being returned?
>>
>> --
>> Sincerely,
>>
>> S. Justin Gengo, MCP
>> Web Developer / Programmer
>>
>> www.aboutfortunate.com
>>
>> "Out of chaos comes order."
>> Nietzsche
>> "Jamie" <Ja***@discussions.microsoft.com> wrote in message
>> news:51**********************************@microsof t.com...
>> >I am receiving an Invalid ViewState error after posting back to the
>> >same
>> >page
>> > twice. Consistently the error occurs after the second postback and
>> > not
>> > after
>> > the first.
>> >
>> > I have looked into creating a static machinekey in the
>> > machine.config
>> > and
>> > that did not help. I believe that issue only occurred when there
>> > was
>> > an
>> > inconsistent viewstate error. The error I am faced with
>> > consistently
>> > occurs.
>> >
>> > Are there any known problems with the ViewState when posting back to
>> > the
>> > same page multiple times? Any help would be much appreciated.
>>
>>
>>

[Alvin Bruney - ASP.NET MVP]

focus on this article
http://support.microsoft.com/default...b;en-us;555353

--
Regards,
Alvin Bruney [MVP ASP.NET]

[Shameless Author plug]
The Microsoft Office Web Components Black Book with .NET
Now Available @ www.lulu.com/owc
Forth-coming VSTO.NET - Wrox/Wiley 2006
-------------------------------------------------------

"Jamie" <Ja***@discussions.microsoft.com> wrote in message
news:BB**********************************@microsof t.com...

I stripped the code down a little but here it is... There are two classes: 1 regular aspx page "Class1.aspx" and another web control "WebControl.cs" that is implemented by Class1. Class1 passes several values to WebControl.cs via the ViewState which also gets changed during the rendering process.

public class Class1 : System.Web.UI.Page
{
protected Controls.WebControl WebCtl;
protected System.Web.UI.WebControls.Repeater ceParamRep;
protected System.Web.UI.HtmlControls.HtmlForm frmDefault;
protected System.Web.UI.WebControls.Label headerlabel;

private void Page_Load(object sender, System.EventArgs e)
{
string passedItem;
WebControl.PassedItem = passedItem;
}
}

public class WebControl : System.Web.UI.WebControls.WebControl,
System.Web.UI.IPostBackDataHandler
{
[Bindable(true),
Category("Item"),
DefaultValue("")]
public string PassedItem
{
get
{
object obj = ViewState["passedItem"];
return (obj == null) ? String.Empty : (string)obj;
}
set
{
ViewState["passedItem"] = value;
}
}

protected override void Render(HtmlTextWriter output)
{
if (Page != null)
{
output.Write(this.PassedItem);
}
}

bool IPostBackDataHandler.LoadPostData(string postDataKey,
NameValueCollection postCollection)
{
bool change = false;
string ssvalue = postCollection[this.SSHelper];
if (ssvalue != null)
{
if(String.Compare(ssvalue,this.PassedItem.ToString (),true) != 0)
{
this.PassedItem = ssvalue;
// If there is a change, raise a change event.
change = true;
}
}
string modevalue = postCollection[this.ModeHelper];
if (modevalue !=null)
{
if(String.Compare(modevalue,this.Mode.ToString(),t rue) != 0)
{
this.Mode = modevalue;
change = true;
}
}
return change;
}

void IPostBackDataHandler.RaisePostDataChangedEvent()
{
// There was a change, so raise any events.
if (ConfigurationChanged != null)
{
ConfigurationChanged(this, EventArgs.Empty);
}
}

"S. Justin Gengo" wrote:

Jamie,

Is it possible for you to post the code or at least the parts of it or an example that you deem relevant? It's going to be almost impossible to figure out what's going on without seeing an example.

Thanks,

S. Justin Gengo, MCP
Web Developer / Programmer

www.aboutfortunate.com

"Out of chaos comes order."
Nietzsche
"Jamie" <Ja***@discussions.microsoft.com> wrote in message
news:79**********************************@microsof t.com...

Unfortunately I have already tried setting the EnableViewStateMac
attribute =
"false" and it did not fix the issue. Also, I am not using
Server.Transfer
on the page.

"S. Justin Gengo" wrote:

> Jamie,
>
> See if this helps...
>
> http://www.extremeexperts.com/Net/FA...isCorrupt.aspx
>
> --
> Sincerely,
>
> S. Justin Gengo, MCP
> Web Developer / Programmer
>
> www.aboutfortunate.com
>
> "Out of chaos comes order."
> Nietzsche
> "Jamie" <Ja***@discussions.microsoft.com> wrote in message
> news:44**********************************@microsof t.com...
> > Justin,
> >
> > See below...
> >
> > Exception Details: System.Web.HttpException: The viewstate is invalid> > for
> > this page and might be corrupted.
> >
> > Source Error:
> >
> > An unhandled exception was generated during the execution of the
> > current
> > web
> > request. Information regarding the origin and location of the exception> > can
> > be identified using the exception stack trace below.
> >
> > Stack Trace:
> >
> > [HttpException (0x80004005): The viewstate is invalid for this page and> > might be corrupted.]
> > System.Web.UI.Page.LoadPageStateFromPersistenceMed ium() +139
> > System.Web.UI.Page.LoadPageViewState() +17
> > System.Web.UI.Page.ProcessRequestMain() +423
> >
> >
> >
> >
> > "S. Justin Gengo" wrote:
> >
> >> Jamie,
> >>
> >> What's the exact error being returned?
> >>
> >> --
> >> Sincerely,
> >>
> >> S. Justin Gengo, MCP
> >> Web Developer / Programmer
> >>
> >> www.aboutfortunate.com
> >>
> >> "Out of chaos comes order."
> >> Nietzsche
> >> "Jamie" <Ja***@discussions.microsoft.com> wrote in message
> >> news:51**********************************@microsof t.com...
> >> >I am receiving an Invalid ViewState error after posting back to the> >> >same
> >> >page
> >> > twice. Consistently the error occurs after the second postback and> >> > not
> >> > after
> >> > the first.
> >> >
> >> > I have looked into creating a static machinekey in the
> >> > machine.config
> >> > and
> >> > that did not help. I believe that issue only occurred when there> >> > was
> >> > an
> >> > inconsistent viewstate error. The error I am faced with
> >> > consistently
> >> > occurs.
> >> >
> >> > Are there any known problems with the ViewState when posting back to> >> > the
> >> > same page multiple times? Any help would be much appreciated.
> >>
> >>
> >>
>
>
>

[Jamie]

Alvin,

I had seen this article and tried some of the suggestions such as using a
static machinekey, but that did not work. Also, the error is not
intermittent as it always occurs after the second postback of the page. I am
running this on a local IIS server which does have virus protection although
I don't think this would be an issue since the postback works fine the first
time.

Is there anything related to viewstate and multiple postbacks where I have
to issue some type of clear statement to the page? The only solution I can
think of is to eliminate the use of ViewState altogether.

"Alvin Bruney - ASP.NET MVP" wrote:

focus on this article
http://support.microsoft.com/default...b;en-us;555353

--
Regards,
Alvin Bruney [MVP ASP.NET]

[Shameless Author plug]
The Microsoft Office Web Components Black Book with .NET
Now Available @ www.lulu.com/owc
Forth-coming VSTO.NET - Wrox/Wiley 2006
-------------------------------------------------------

"Jamie" <Ja***@discussions.microsoft.com> wrote in message
news:BB**********************************@microsof t.com...

I stripped the code down a little but here it is... There are two

classes: 1

regular aspx page "Class1.aspx" and another web control "WebControl.cs"

that

is implemented by Class1. Class1 passes several values to WebControl.cs

via

the ViewState which also gets changed during the rendering process.

public class Class1 : System.Web.UI.Page
{
protected Controls.WebControl WebCtl;
protected System.Web.UI.WebControls.Repeater ceParamRep;
protected System.Web.UI.HtmlControls.HtmlForm frmDefault;
protected System.Web.UI.WebControls.Label headerlabel;

private void Page_Load(object sender, System.EventArgs e)
{
string passedItem;
WebControl.PassedItem = passedItem;
}
}

public class WebControl : System.Web.UI.WebControls.WebControl,
System.Web.UI.IPostBackDataHandler
{
[Bindable(true),
Category("Item"),
DefaultValue("")]
public string PassedItem
{
get
{
object obj = ViewState["passedItem"];
return (obj == null) ? String.Empty : (string)obj;
}
set
{
ViewState["passedItem"] = value;
}
}

protected override void Render(HtmlTextWriter output)
{
if (Page != null)
{
output.Write(this.PassedItem);
}
}

bool IPostBackDataHandler.LoadPostData(string postDataKey,
NameValueCollection postCollection)
{
bool change = false;
string ssvalue = postCollection[this.SSHelper];
if (ssvalue != null)
{
if(String.Compare(ssvalue,this.PassedItem.ToString (),true) != 0)
{
this.PassedItem = ssvalue;
// If there is a change, raise a change event.
change = true;
}
}
string modevalue = postCollection[this.ModeHelper];
if (modevalue !=null)
{
if(String.Compare(modevalue,this.Mode.ToString(),t rue) != 0)
{
this.Mode = modevalue;
change = true;
}
}
return change;
}

void IPostBackDataHandler.RaisePostDataChangedEvent()
{
// There was a change, so raise any events.
if (ConfigurationChanged != null)
{
ConfigurationChanged(this, EventArgs.Empty);
}
}

"S. Justin Gengo" wrote:

Jamie,

Is it possible for you to post the code or at least the parts of it or an example that you deem relevant? It's going to be almost impossible to figure out what's going on without seeing an example.

Thanks,

S. Justin Gengo, MCP
Web Developer / Programmer

www.aboutfortunate.com

"Out of chaos comes order."
Nietzsche
"Jamie" <Ja***@discussions.microsoft.com> wrote in message
news:79**********************************@microsof t.com...
> Unfortunately I have already tried setting the EnableViewStateMac
> attribute =
> "false" and it did not fix the issue. Also, I am not using
> Server.Transfer
> on the page.
>
> "S. Justin Gengo" wrote:
>
>> Jamie,
>>
>> See if this helps...
>>
>> http://www.extremeexperts.com/Net/FA...isCorrupt.aspx
>>
>> --
>> Sincerely,
>>
>> S. Justin Gengo, MCP
>> Web Developer / Programmer
>>
>> www.aboutfortunate.com
>>
>> "Out of chaos comes order."
>> Nietzsche
>> "Jamie" <Ja***@discussions.microsoft.com> wrote in message
>> news:44**********************************@microsof t.com...
>> > Justin,
>> >
>> > See below...
>> >
>> > Exception Details: System.Web.HttpException: The viewstate is invalid >> > for
>> > this page and might be corrupted.
>> >
>> > Source Error:
>> >
>> > An unhandled exception was generated during the execution of the
>> > current
>> > web
>> > request. Information regarding the origin and location of the exception >> > can
>> > be identified using the exception stack trace below.
>> >
>> > Stack Trace:
>> >
>> > [HttpException (0x80004005): The viewstate is invalid for this page and >> > might be corrupted.]
>> > System.Web.UI.Page.LoadPageStateFromPersistenceMed ium() +139
>> > System.Web.UI.Page.LoadPageViewState() +17
>> > System.Web.UI.Page.ProcessRequestMain() +423
>> >
>> >
>> >
>> >
>> > "S. Justin Gengo" wrote:
>> >
>> >> Jamie,
>> >>
>> >> What's the exact error being returned?
>> >>
>> >> --
>> >> Sincerely,
>> >>
>> >> S. Justin Gengo, MCP
>> >> Web Developer / Programmer
>> >>
>> >> www.aboutfortunate.com
>> >>
>> >> "Out of chaos comes order."
>> >> Nietzsche
>> >> "Jamie" <Ja***@discussions.microsoft.com> wrote in message
>> >> news:51**********************************@microsof t.com...
>> >> >I am receiving an Invalid ViewState error after posting back to the >> >> >same
>> >> >page
>> >> > twice. Consistently the error occurs after the second postback and >> >> > not
>> >> > after
>> >> > the first.
>> >> >
>> >> > I have looked into creating a static machinekey in the
>> >> > machine.config
>> >> > and
>> >> > that did not help. I believe that issue only occurred when there >> >> > was
>> >> > an
>> >> > inconsistent viewstate error. The error I am faced with
>> >> > consistently
>> >> > occurs.
>> >> >
>> >> > Are there any known problems with the ViewState when posting back to >> >> > the
>> >> > same page multiple times? Any help would be much appreciated.
>> >>
>> >>
>> >>
>>
>>
>>