//  home   //  advanced search   //  news   //  categories   //  sql build chart   //  downloads   //  statistics
 ASP FAQ 
Home
ASP FAQ Tutorials

   8000XXXX Errors
   Alerts
   ASP.NET 2.0
   Classic ASP 1.0
      COM / ActiveX Components
      Forms
      General Topics
      Date/Time Routines
      Email Scripts & Info
      Files/Directories & FSO
   Databases
   General Concepts
   Search Engine Optimization (SEO)

Contact Us
Site Map

Search

Web
aspfaq.com
tutorials.aspfaq.com
classicasp.aspfaq.com

ASP FAQ Tutorials :: Classic ASP 1.0 :: Forms :: What is the limit on Form / POST parameters?


What is the limit on Form / POST parameters?

Unlike QueryString data, POSTed form data has a very high number of allotted characters. This is because the data is transferred in the headers and not in the URL. 
 
Note that there is no limit on the number of FORM elements you can pass via POST, but only on the aggregate size of all name/value pairs. 
 
While GET is limited to as low as 1024 characters, POST data is limited to 2 MB on IIS 4.0, and 128 KB on IIS 5.0. Each name/value is limited to 1024 characters, as imposed by the SGML spec. Of course this does not apply to files uploaded using enctype='multipart/form-data' ... I have had no problems uploading files in the 90 - 100 MB range using IIS 5.0, aside from having to increase the server.scriptTimeout value as well as my patience! :-) 
 
See KB #260694 to learn how to adjust the limits of POST data (this deals with adding/modifying MaxClientRequestBuffer in the registry). 
 
In IIS 6.0 (Windows Server 2003), you can adjust this setting in the metabase. You need to increase the setting for AspMaxRequestEntityAllowed to allow larger files to be handled by the Request object. Look for this setting in metabase.xml; the default is 204,800 (200 kb), but you can change it to reflect your expected usage. You will need to restart IIS for this change to take place, unless "enable direct metabase edit" is enabled.

Related Articles

How can I mimic a client-side POST from ASP?
How do I cause/prevent ENTER being used to submit a form?
How do I change the target frame or window of a response.redirect?
How do I disable certain FORM elements?
How do I disable IE's Autocomplete feature?
How do I iterate through a form collection?
How do I make form fields read-only?
How do I make one dropdown depend on another?
How do I pass x-y coordinates to ASP, after the user clicks an image?
How do I perform spell checking from a web page?
How do I retrieve the name of the form that was submitted?
How do I retrieve the text and the value from a <SELECT> element?
How do I submit forms to a new window, with window.open() features?
How do I upload files from the client to the server?
How do I validate a credit card number in ASP?
How do I validate forms using server side script?
What is the limit on QueryString / GET / URL parameters?
What is the size limit of a posted FORM field?
When I have multiple submit buttons, how do I tell which was clicked?
Which should I use: Request("item") or Request.Form("item")?
Why can't I access Request.Form() when uploading?
Why can't I pre-populate INPUT TYPE=FILE element?
Why do I get 'HTTP 405 - Resource Not Allowed' errors?
Why does my form variable become 'value, value' instead of 'value'?
Why does my input type=text value get truncated?
Why won't my <TEXTAREA> display the data I passed to it from ASP?

 

 


Created: 11/13/2001 | Last Updated: 11/12/2003 | broken links | helpful | not helpful | statistics
© Copyright 2006, UBR, Inc. All Rights Reserved. (291)

 

Copyright 1999-2006, All rights reserved.
Finding content
Finding content.  An error has occured...