原因是lightning:dualListbox控件需要写全”label”, “sourceLabel”, “selectedLabel”, “options”属性。
参考官网写法:
<aura:component>
<aura:attribute name="listOptions" type="List" default="[]"/>
<aura:attribute name="defaultOptions" type="List" default="[]"/>
<aura:attribute name="requiredOptions" type="List" default="[]"/>
<aura:handler name="init" value="{! this }" action="{! c.initialize }"/>
<lightning:dualListbox aura:id="selectOptions" name="Select Options" label= "Select Options"
sourceLabel="Available Options"
selectedLabel="Selected Options"
options="{! v.listOptions }"
value="{! v.defaultOptions }"
requiredOptions="{! v.requiredOptions }"
onchange="{! c.handleChange }"/>
</aura:component>