点击事件获取设置的data参数为什么获取不到？

<view wx:else class=“package “  data-id=”{{item.memberPackageId}}” bindtap=“selectPackpage”>

    <view class=“membertime” data-id=“{{item.memberPackageId}}” >

        <text class=“number1” data-id=“{{item.memberPackageId}}”>{{item.packageTitle}}</text>

        <text class=“number2” data-id=“{{item.memberPackageId}}”>个月</text>

    </view>

        <view class=“memberprice” data-id=“{{item.memberPackageId}}” >

        <view class=“reprice” data-id=“{{item.memberPackageId}}”><text class=“price1” data-id=“{{item.memberPackageId}}”>活动价</text><text class=“price2” data-id=“{{item.memberPackageId}}”>￥{{item.salePrice}}</text>            </view>

        <view class=“saleprice” data-id=“{{item.memberPackageId}}”>￥{{item.marketPrice}}</view>

    </view>

</view>

我就在最外层设置data-id但是有时候点的时候在点击事件里面获取不到id，得都绑上才行？