我有一个Rails表单,其中包含一个如下所示的下拉列表:
<%= f.select :facility_id, options_for_select(@entities.collect{ |e| [e.entity, e.entity] }, 1 ), {include_blank: '-Select-'}, { id: my_entity'} %>
我也有2个与上述相似的下拉菜单。
请帮助!
谢谢
您可以通过在multiple: true中添加select来做到这一点>
multiple: true
select
示例:
<%= f.select :facility_id, options_for_select(@entities.collect{ |e| [e.entity, e.entity] }, 1 ), {include_blank: '-Select-'}, { id: my_entity'}, { :multiple => true, :size => 5 } %> 参考:[1] [2]
<%= f.select :facility_id, options_for_select(@entities.collect{ |e| [e.entity, e.entity] }, 1 ), {include_blank: '-Select-'}, { id: my_entity'}, { :multiple => true, :size => 5 } %>
参考:[1] [2]
您可能只需要将其添加到标签中{ :multiple => true}像这样
{ :multiple => true}