Container Attributes
Unlike most of the other Commerce Server HTCs, the ListBox HTC does not use Extensible Markup Language (XML) data-islands, specified using container attributes, for its data and configuration information. Instead, it uses a container attribute and an additional Class attribute value for some simple configuration, as follows:
selection
The value of this attribute specifies whether the ListBox HTC will allow single selection or multiple selection. Legal values are 'single' and 'multi'. The default is single selection.
lbDisabled
Specifying this Class attribute value, in addition to the 'ListBox' Class attribute value, causes the ListBox HTC to initially be displayed as disabled.