Traditionally submitting a form has the effect that a new document is returned and replaces the current page in the browser window.
In WF2 it is possible to submit the data form the form, and have the server return data that replaces the values in the form field without the whole page beeing replaced.
This form is hooked up to a service which reverses the content of text fields.
The HTML look like this:
<form action="reverse.asp" replace=values> Your name: <input name=txt1 value="Simsalabim!" type="text"> <button type=submit>Reverse!</button> </form>
It is the attribute
replace=values which declares
that formdata should be extracted from the returned document. The default corresponds to
replace=document, which means that the returned document replaces the current page.
When using replace=values, the server must return the data in a specific XML-format, which looks like this:
<?xml version="1.0"?> <formdata xmlns="uuid:d10e4fd6-2c01-49e8-8f9d-0ab964387e32"> <field name="txt1">!mibalasmiS</field> </formdata>
The format is called XML-formdata, and may also be used for prefilling forms with data from an external source.