jsf 2 - Multi checkbox with grouping in dropdown using primefaces JSF -


i need have dropdown list has grouped , should able multi select using checkbox using primefaces. can me out?

there no primefaces component ready use in case. cloesest ones selectonemenu (dropdown list grouping, single selection without checkbox) , selectcheckboxmenu (dropdown list multi selection , checkbox, without grouping).

i not see chance in customizing selectonemenu suit needs. extending selectcheckboxmenurenderer support selectitemgroup may option selectcheckboxmenu.

the idea behind traverse full hierarchy, render selectitemgroups non selectable options , leaf selectitems normal options. concrete implementation you.

if hierarchy flat another simple approach can be, mimic groups disabled selectitems selectcheckboxmenu. visually not best result should fulfill needs. example <f:selectitems /> value can be

list<selectitem> options = arrays.aslist(   new selectitem("group1", "group1", "group1", true),    new selectitem("option1", "option1", "option1", false),   new selectitem("option2", "option2", "option2", false),   new selectitem("group2", "group2", "group2", true),   new selectitem("option3", "option3", "option3", false),   new selectitem("option4", "option4", "option4", false) );

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