The use of range-key, a multi-column selector in WeChat applet-Mini Program Development-php.cn

The use of range-key, a multi-column selector in WeChat applet

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Release： 2018-06-27 10:33:34

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This article mainly introduces in detail how to use the range-key of the multi-column selector of the WeChat applet. It has a certain reference value. Interested friends can refer to it.

The example of this article is We have shared the specific code of the WeChat applet multi-column selector for your reference. The specific content is as follows

<picker mode="multiSelector" bindchange="bindMultiPickerChange2" bindcolumnchange="bindMultiPickerColumnChange2" value="{{multiIndex}}" range="{{objectMultiArray}}" range-key="{{&#39;name&#39;}}">
 <view class="picker">
  当前选择：{{objectMultiArray[0][multiIndex2[0]].name}}，{{objectMultiArray[1][multiIndex2[1]].name}}
 </view>
</picker>

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Page({

 /**
 * 页面的初始数据
 */
 data: {
 objectMultiArray: [
  [
  {
   id: 0,
   name: &#39;无脊柱动物&#39;
  },
  {
   id: 1,
   name: &#39;脊柱动物&#39;
  }
  ], [
  {
   id: 0,
   name: &#39;扁性动物&#39;
  },
  {
   id: 1,
   name: &#39;线形动物&#39;
  },
  {
   id: 2,
   name: &#39;环节动物&#39;
  },
  {
   id: 3,
   name: &#39;软体动物&#39;
  },
  {
   id: 3,
   name: &#39;节肢动物&#39;
  }
  ]
 ],
 multiIndex2: [0, 0],
 },


 bindMultiPickerChange2: function (e) {
 console.log(&#39;picker发送选择改变，携带值为&#39;, e.detail.value)
 this.setData({
  multiIndex2: e.detail.value
 })
 },
 bindMultiPickerColumnChange2: function (e) {
 console.log(&#39;修改的列为&#39;, e.detail.column, &#39;，值为&#39;, e.detail.value);
 var data = {
  objectMultiArray: this.data.objectMultiArray,
  multiIndex2: this.data.multiIndex2
 };
 data.multiIndex2[e.detail.column] = e.detail.value;
 switch (e.detail.column) {
  case 0:
  switch (data.multiIndex2[0]) {
   case 0:
   data.objectMultiArray[1] = [
    { id: 0, name: &#39;扁性动物&#39; },
    { id: 1, name: &#39;线形动物&#39; },
    { id: 2, name: &#39;环节动物&#39; },
    { id: 3, name: &#39;软体动物&#39; },
    { id: 3, name: &#39;节肢动物&#39; }
   ];
   // data.multiArray[2] = [&#39;猪肉绦虫&#39;, &#39;吸血虫&#39;];
   break;
   case 1:
   data.objectMultiArray[1] = [
    { id: 0, name: &#39;鱼&#39; },
    { id: 1, name: &#39;线形两栖动物&#39; },
    { id: 2, name: &#39;爬行动物&#39; }
   ];
   break;
  }
  data.multiIndex2[1] = 0;
  // data.multiIndex[2] = 0;
  break;
 }
 this.setData(data);
 }


})

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