XPE Forms GUI elements: Dropdown

Description

The Dropdown GUI element allows one to select one value out of a number of options. For example:

   <xf:field required="no" size="1" maxlength="20" qa:type="xs:string" xmlns:qa="http://www.xml.org/pipe/xpe/xs/simple" display="CC" ui="dropdown" ref="registration/cc" xmlns:xf="http://www.xmlpipe.org/xpe/form" >
      <xf:option value="Visa" />
      <xf:option value="American Express" />
      <xf:option value="Mastercard" />
   </xf:field>

This element also allows one to use external services. To use an external option service, one specifies the modelURI attribute:

Attributes

Attribute name	Description
modelURI	If specified, the modelURI points to an external option service. The option service should output the following XML response: <options xmlns="http://www.xmlpipe.org/xpe/manual" > <option value="{option value}" xmlns="" > Option display </option> + </options>