Page 127 - DCAP512_WAP_AND_WML

Unit 9: Working with user Input

Notes
Example: In the example below, the result is a selectable list where the user can select
more than one item:
<?xml version=”1.0"?>
<!DOCTYPE wml PUBLIC “-//WAPFORUM//DTD WML 1.1//EN”
“http://www.wapforum.org/DTD/wml_1.1.xml”>

<wml>
<card title=”Selectable List 2">
<p>
<select multiple=”true”>

<option value=”htm”>HTML Tutorial</option>
<option value=”xml”>XML Tutorial</option>
<option value=”wap”>WAP Tutorial</option>
</select>

</p>
</card>
</wml>

9.3.1 Restricted Input with Select

The <select> selection lists gives users a choice of several predetermined answers in the forms of
radio buttons or check boxes. Attributes are presented in Table 9.3.
Table 9.3

Attribute Purpose
Multiple True or False, default is “false”
Name Variable name
Value The initial value, if any
Iname and ivalue The ‘iname’ is similar to the ‘name’ attribute. However, the variable defined
stores the index value(s) associated with the option(s) by the user. The index
value is derived from the position of the <option> element list, starting from
1. If no option is selected, the value is 0.
Tabindex This is used for putting the selection into a table order.

9.3.2 The <option> Element

The <option> attributes are presented in Table 9.4.

Table 9.4

Attributes Purpose
Value Sets the value of variable once chosen.
Onpick Designates a URL to go to, if chosen

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