antd 的form表單中selected下拉選擇清空

 

 只要添加                allowClear={true}就可以

 <Form.Item label="外鍵">
            {getFieldDecorator('dimensionForeignKey', {
              initialValue: '',
              rules: [{ required: false, message: '外鍵不能爲空' }],
            })(
              <Select
                showSearch
                placeholder="請輸入外鍵"
                optionFilterProp="children"
                style={{ width: '100%' }}
                placeholder="Please select"
                onChange={this.onChange}
                onFocus={this.onFocus}
                onBlur={onBlur}
                allowClear={true}
                onSearch={onSearch}
                filterOption={(input, option) =>
                  option.props.children.toLowerCase().indexOf(input.toLowerCase()) >= 0
                }
              >
                {foreignKeyChildren}
              </Select>
            )}
          </Form.Item>