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a pair of radio buttons asking you to choose between gender values; a select box giving you a list of eye colors to choose from; a pair of check boxes to click on if they apply to you; a text area to describe your athletic ability; a submit button to send current form values to the server
Diagram of a double POST problem encountered in user agents. Diagram of the double POST problem above being solved by PRG. Post/Redirect/Get (PRG) is a web development design pattern that lets the page shown after a form submission be reloaded, shared, or bookmarked without ill effects, such as submitting the form another time.
Make sure that there is no text before the #REDIRECT keyword, or the redirect will not work. There is not usually any reason to place any text after the link either, although sometimes categories (or categorizing templates—see Categorizing redirects), interwiki links (see Interlanguage links) or HTML comments (<!-- comment -->) are added.
Starting with HTML 4.0, forms can also submit data in multipart/form-data as defined in RFC 2388 (See also RFC 1867 for an earlier experimental version defined as an extension to HTML 2.0 and mentioned in HTML 3.2). The special case of a POST to the same page that the form belongs to is known as a postback.
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In ASP, a form and its POST action have to be created as two separate pages, resulting in the need for an intermediate page and a redirect if one simply wants to perform a postback. This problem was addressed in ASP.NET with the __doPostBack() function and an application model that allows a page to perform validation and processing on its own ...
An early use of CGI scripts was to process forms. In the beginning of HTML, HTML forms typically had an "action" attribute and a button designated as the "submit" button. When the submit button is pushed the URI specified in the "action" attribute would be sent to the server with the data from the form sent as a query string. If the "action ...
The redirect is better in a case like this than a direct link like [[dog|poodle]], because when an actual poodle article is eventually created (replacing the redirect), readers following the poodle link are taken there automatically without anyone needing to review all the links to dog to see which ones should actually go to poodle.