WAP Development with WML and WMLScript

Restricted Input with <select>

Restricting input from a user means presenting the user with a finite number of choices. In WML, this means using the <select> tag to present the choices as a list of text items from which the user can select one or more. This section will detail the use of the <select> tag and its primary children—the <option> and <optgroup> tags.

To get started, let's look at the simplest use of the selection list. Listing 7.16 shows a deck with one card that creates a simple poll.

Listing 7.16 Voting for One of a Limited Number of Choices

<?xml version="1.0"?> <!-- listing0716.wml --> <!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.2//EN" "http://www.wapforum.org/DTD/wml12.dtd"> <wml> <!-- using a simple selection list ...