score:6

Accepted answer

defaultValue cannot be an object for semantic-UI-react. It can only be a value. http://react.semantic-ui.com/modules/dropdown. If you look at the props of defaultValue, the docs say that it can be a string, number, or arrayOf.

I usually set mine to value of the dropdown - using immutabilityJS - when it is switched onChange.

<Dropdown
    placeholder={field[propName].label}
    id={propName}
    fluid
    multiple
    selection
    search
    defaultValue={dropdownList.get('forWhat')}
    options={options}
    onChange={(e, {value}) => this.updateDropdownList('forWhat',[value:value, text:"works"])}
/>

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