Invalid length for a Base-64 char array

danc

I keep getting this error. I have scoured the web and could not find any
applicable information. It seems to have really started since I upgraded to
the 1.1 framework. Any help is appreciated.

Using:
*ASP.NET 1.1
*Single machine (no clusters)
*Simple postbacks (no postbacks to different pages)
*Using only Response.Redire ct() when applicable
*The page works fine. The error appears at random occasions.
*I have not been able to repro the error on my dev machine. It happens only
on my production server.
UNHANDLED Exception:
[FormatException : Invalid length for a Base-64 char array.]
System.Convert. FromBase64Strin g(String s)
System.Web.UI.L osFormatter.Des erialize(String input)
System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium()

[HttpException: Invalid_Viewsta te_Client_Disco nnected
Client IP: 204.231.101.39
Port: 1585
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET
CLR 1.1.4322)
ViewState:
***50,369 bytes of base64 text***
Http-Referer: http://198.137.76.44/appman/ManageCustomer.aspx
Path: /appman/ManageCustomer. aspx.]
System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium()
System.Web.UI.P age.LoadPageVie wState()
System.Web.UI.P age.ProcessRequ estMain()
User Name: xxxx
SessionID: jqg1cr45bvomc44 5vefeli45
Form Data:
__EVENTTARGET = "Customers"
__EVENTARGUMENT = ""
Thanks in advance,

Dan

Nov 19 '05 #1

Subscribe Reply

11329

Brad Roberts

Sounds like some of the base64 encoded characters are not making it back to
the server without modification. The same problem occurs when base64
characters are used in a URL. To be used in a URL they have to be URLEncoded,
too.

Try using HTMLEncode() on the base64 data before sending it to the browser.

"danc" wrote:

I keep getting this error. I have scoured the web and could not find any
applicable information. It seems to have really started since I upgraded to
the 1.1 framework. Any help is appreciated.

Using:
*ASP.NET 1.1
*Single machine (no clusters)
*Simple postbacks (no postbacks to different pages)
*Using only Response.Redire ct() when applicable
*The page works fine. The error appears at random occasions.
*I have not been able to repro the error on my dev machine. It happens only
on my production server.
UNHANDLED Exception:
[FormatException : Invalid length for a Base-64 char array.]
System.Convert. FromBase64Strin g(String s)
System.Web.UI.L osFormatter.Des erialize(String input)
System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium()

[HttpException: Invalid_Viewsta te_Client_Disco nnected
Client IP: 204.231.101.39
Port: 1585
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET
CLR 1.1.4322)
ViewState:
***50,369 bytes of base64 text***
Http-Referer: http://198.137.76.44/appman/ManageCustomer.aspx
Path: /appman/ManageCustomer. aspx.]
System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium()
System.Web.UI.P age.LoadPageVie wState()
System.Web.UI.P age.ProcessRequ estMain()
User Name: xxxx
SessionID: jqg1cr45bvomc44 5vefeli45
Form Data:
__EVENTTARGET = "Customers"
__EVENTARGUMENT = ""
Thanks in advance,

Dan

Nov 19 '05 #2

bruce barker

the error is coming from the framework trying to load the __viewstate hidden
field. the common cause for this error, is the viewstate is very large, and
a proxy server is truncating it, causing the error. be sure your length of
your viewstate is under 2k.

-- bruce (sqlwork.com)

"danc" <da**@discussio ns.microsoft.co m> wrote in message
news:7B******** *************** ***********@mic rosoft.com...
| I keep getting this error. I have scoured the web and could not find any
| applicable information. It seems to have really started since I upgraded
to
| the 1.1 framework. Any help is appreciated.
|
| Using:
| *ASP.NET 1.1
| *Single machine (no clusters)
| *Simple postbacks (no postbacks to different pages)
| *Using only Response.Redire ct() when applicable
| *The page works fine. The error appears at random occasions.
| *I have not been able to repro the error on my dev machine. It happens
only
| on my production server.
|
|
| UNHANDLED Exception:
| [FormatException : Invalid length for a Base-64 char array.]
| System.Convert. FromBase64Strin g(String s)
| System.Web.UI.L osFormatter.Des erialize(String input)
| System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium()
|
| [HttpException: Invalid_Viewsta te_Client_Disco nnected
| Client IP: 204.231.101.39
| Port: 1585
| User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET
| CLR 1.1.4322)
| ViewState:
| ***50,369 bytes of base64 text***
| Http-Referer: http://198.137.76.44/appman/ManageCustomer.aspx
| Path: /appman/ManageCustomer. aspx.]
| System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium()
| System.Web.UI.P age.LoadPageVie wState()
| System.Web.UI.P age.ProcessRequ estMain()
|
|
| User Name: xxxx
| SessionID: jqg1cr45bvomc44 5vefeli45
| Form Data:
| __EVENTTARGET = "Customers"
| __EVENTARGUMENT = ""
|
|
| Thanks in advance,
|
| Dan

Nov 19 '05 #3

danc

Bruce,

The puzzle is that things work sometime and not others, so I don't know why
there would be a length limit that takes effect only some times (the exact
same data is being transferred). The large viewstate is the result of a
DropdownList control (I will look into removing the need for viewstate) and
is definitively larger than 2K. Other pages use a DataGrid control with an
even larger viewstate and have this problem only rarely (if at all).

I wonder if "Invalid_Viewst ate_Client_Disc onnected" is a clue.

Any other thoughts?

Regards,

Dan
"bruce barker" wrote:

the error is coming from the framework trying to load the __viewstate hidden
field. the common cause for this error, is the viewstate is very large, and
a proxy server is truncating it, causing the error. be sure your length of
your viewstate is under 2k.

-- bruce (sqlwork.com)

"danc" <da**@discussio ns.microsoft.co m> wrote in message
news:7B******** *************** ***********@mic rosoft.com...
| I keep getting this error. I have scoured the web and could not find any
| applicable information. It seems to have really started since I upgraded
to
| the 1.1 framework. Any help is appreciated.
|
| Using:
| *ASP.NET 1.1
| *Single machine (no clusters)
| *Simple postbacks (no postbacks to different pages)
| *Using only Response.Redire ct() when applicable
| *The page works fine. The error appears at random occasions.
| *I have not been able to repro the error on my dev machine. It happens
only
| on my production server.
|
|
| UNHANDLED Exception:
| [FormatException : Invalid length for a Base-64 char array.]
| System.Convert. FromBase64Strin g(String s)
| System.Web.UI.L osFormatter.Des erialize(String input)
| System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium()
|
| [HttpException: Invalid_Viewsta te_Client_Disco nnected
| Client IP: 204.231.101.39
| Port: 1585
| User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET
| CLR 1.1.4322)
| ViewState:
| ***50,369 bytes of base64 text***
| Http-Referer: http://198.137.76.44/appman/ManageCustomer.aspx
| Path: /appman/ManageCustomer. aspx.]
| System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium()
| System.Web.UI.P age.LoadPageVie wState()
| System.Web.UI.P age.ProcessRequ estMain()
|
|
| User Name: xxxx
| SessionID: jqg1cr45bvomc44 5vefeli45
| Form Data:
| __EVENTTARGET = "Customers"
| __EVENTARGUMENT = ""
|
|
| Thanks in advance,
|
| Dan

Nov 19 '05 #4

SmashHuevo

I'm seeing this error, as well--and it seems to come from thefact that our users will do something that triggers a postback(e.g. select an item from a DropDownList), and then do somethingthat triggers another one, before the first request hasreturned. This seems to truncate the viewstate mid-request, andcause this error.

Anyone have any ideas on how to fix this?

I keep getting this error. I have scoured the web and could notfind any
applicable information. It seems to have really started since Iupgraded to
the 1.1 framework. Any help is appreciated.

Using:
*ASP.NET 1.1
*Single machine (no clusters)
*Simple postbacks (no postbacks to different pages)
*Using only Response.Redire ct() when applicable
*The page works fine. The error appears at random occasions.
*I have not been able to repro the error on my dev machine. Ithappens only
on my production server.
UNHANDLED Exception:
[FormatException : Invalid length for a Base-64 char array.]
System.Convert. FromBase64Strin g(String s)
System.Web.UI.L osFormatter.Des erialize(String input)
System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium()

[HttpException: Invalid_Viewsta te_Client_Disco nnected
Client IP: 204.231.101.39
Port: 1585
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT5.1; SV1; .NET
CLR 1.1.4322)
ViewState:
***50,369 bytes of base64 text***
Http-Referer:http://198.137.76.44/appman/ManageCustomer.aspx
Path: /appman/ManageCustomer. aspx.]
System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium()
System.Web.UI.P age.LoadPageVie wState()
System.Web.UI.P age.ProcessRequ estMain()
User Name: xxxx
SessionID: jqg1cr45bvomc44 5vefeli45
Form Data:
__EVENTTARGET = "Customers"
__EVENTARGUMENT = ""
Thanks in advance,

Dan

User submitted from AEWNET (http://www.aewnet.com/)

Nov 19 '05 #5

Alvin Bruney [MVP - ASP.NET]

nope, i don't think that is the case. i'm looking into this issue with
microsoft under thread invalid viewstate. if you can reproduce it please
send email to va******@hotmai l.com subject line invalid viewstate

--
Regards,
Alvin Bruney - ASP.NET MVP

[Shameless Author Plug]
The Microsoft Office Web Components Black Book with .NET
Now available @ www.lulu.com/owc
"SmashHuevo " <SmashHuevo@aew _nospam.com> wrote in message
news:ul******** ******@TK2MSFTN GP14.phx.gbl...
I'm seeing this error, as well--and it seems to come from the fact that our
users will do something that triggers a postback (e.g. select an item from a
DropDownList), and then do something that triggers another one, before the
first request has returned. This seems to truncate the viewstate
mid-request, and cause this error.

Anyone have any ideas on how to fix this?

I keep getting this error. I have scoured the web and could not find any
applicable information. It seems to have really started since I upgraded
to
the 1.1 framework. Any help is appreciated.

Using:
*ASP.NET 1.1
*Single machine (no clusters)
*Simple postbacks (no postbacks to different pages)
*Using only Response.Redire ct() when applicable
*The page works fine. The error appears at random occasions.
*I have not been able to repro the error on my dev machine. It happens
only
on my production server.
UNHANDLED Exception:
[FormatException : Invalid length for a Base-64 char array.]
System.Convert. FromBase64Strin g(String s)
System.Web.UI.L osFormatter.Des erialize(String input)
System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium()

[HttpException: Invalid_Viewsta te_Client_Disco nnected
Client IP: 204.231.101.39
Port: 1585
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET
CLR 1.1.4322)
ViewState:
***50,369 bytes of base64 text***
Http-Referer: http://198.137.76.44/appman/ManageCustomer.aspx
Path: /appman/ManageCustomer. aspx.]
System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium()
System.Web.UI.P age.LoadPageVie wState()
System.Web.UI.P age.ProcessRequ estMain()
User Name: xxxx
SessionID: jqg1cr45bvomc44 5vefeli45
Form Data:
__EVENTTARGET = "Customers"
__EVENTARGUMENT = ""
Thanks in advance,

Dan

User submitted from AEWNET (http://www.aewnet.com/)

Nov 19 '05 #6

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