javascript - 当设置 `value`时下拉 `multiple`必须是一个数组。接收类型 : `[object Undefined]`

Question

我正在使用 Semantic-ui-react，我得到了

Dropdown value must be an array when multiple is set. Received type: `[object Undefined]

<Dropdown id={id + 'baa'}
    fluid selection
    search={true} 
    minCharacters={0} 
    multiple={false}
    loading={isDataBeingFetched} 
    disabled={!isOwnerView || isDataBeingFetched}
    options={options1}
    placeholder={'Select an Approver'}
    value={currentItem.baa_approver}
    onChange={(event, { value }) =>
    this.handleOnChange(currentIndex, value, 'baa_approver', event)}
 />

Answer 1

使用 defaultValue={currentItem.baa_approver} 而不是 value={currentItem.baa_approver}