CODEWITHSUNDEEP
asp.neturlencoding
Paul Kogan
Paul Kogan

Reputation: 691

URL-encoded form data is not valid

I have a webpage that posts multiple form tags. It's an inline edit page, where I can either post one row at a time or multiple rows. Last night, without making any changes to the code or data, I started getting The URL-encoded form data is not valid error on multiple posts, although single row posts work fine.

Upvotes: 69

Views: 37171

Answers (2)

Greg Lary
Greg Lary

Reputation: 1181

The MS KB issue in question is: http://weblogs.asp.net/scottgu/archive/2011/12/28/asp-net-security-update-shipping-thursday-dec-29th.aspx

In a nutshell there is now an upper bound on the number of simultaneous HTTP form elements that may be posted. The default is now 1000 without explicitly changing it with this key in the <appSettings> portion of the web.config:

<add key="aspnet:MaxHttpCollectionKeys" value="some number greater than 1000" />

Upvotes: 112

1234
1234

Reputation: 167

There was a microsoft update and it may have caused your issue see link. http://knowledgebase.solarwinds.com/kb/questions/3476/Website+Error%3A+The+URL-encoded+form+data+is+not+valid

Upvotes: 15

Related Questions