Help Please -- "Error Message :Invalid character in a Base-64 string."

[mvmashraf]

Hi to all....

I have spent some time browsing for a solution to the following error but have unfortunatly not found any solution yet ,Please any help would be much appreciated....
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This is the full error description...

"Error Message :Invalid character in a Base-64 string."

Error Source :mscorlib
Error Stack Trace : at System.Convert.FromBase64String(String s)
at System.Web.UI.ObjectStateFormatter.Deserialize(Str ing inputString)
at System.Web.UI.ObjectStateFormatter.System.Web.UI.I StateFormatter.Deserialize(String serializedState)
at System.Web.UI.Util.DeserializeWithAssert(IStateFor matter formatter, String serializedState)
at System.Web.UI.HiddenFieldPageStatePersister.Load()

Error TargetSite :Byte[] FromBase64String(System.String)
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I am using qurry string and view state in the same page, Is this error related with these, what will the good solution to solve this.. Any help please.......


Regards @shraf

[Plater]

Are you doing the FromBase64String yourself somewhere? It's very strange.

[mvmashraf]

Are you doing the FromBase64String yourself somewhere? It's very strange.

I am a newbie to this .net, could me pls let me know where we need to use "FromBase64String", u mean to use this methode in request.querrysting methode, If you have a sample code snip pls.............

[Plater]

No I was asking if you are ALREADY using it.
I am going to guess no. I am also thinking it is related to the viewstate settings.

[mvmashraf]

No I was asking if you are ALREADY using it.
I am going to guess no. I am also thinking it is related to the viewstate settings.

Thanks for ur reply ...Yes,I am not using the "FromBase64String" in my page,

If its related to the ViewState, Let me say my problem, I have a dataList in my page , inorder to sort the List, I am using the view state to store datas, Any way How can i solve the ViewState problem(if its related to the ViewState)..

Please let me know

[Frinavale]

Thanks for ur reply ...Yes,I am not using the "FromBase64String" in my page,

If its related to the ViewState, Let me say my problem, I have a dataList in my page , inorder to sort the List, I am using the view state to store datas, Any way How can i solve the ViewState problem(if its related to the ViewState)..

Please let me know

It sounds like you are Encrypting your ViewState. Try removing this encryption and see if the error goes away. I've seen this error before...I remember something in my ViewState was being corrupted (interpreted as such anyways).

-Frinny