微信小程序多列選擇器

wxml

 

<picker mode="multiSelector" bindchange="bindMultiPickerChange2" bindcolumnchange="bindMultiPickerColumnChange2" value="{{multiIndex}}" range="{{objectMultiArray}}" range-key="{{'name'}}">
   <view class="picker">
      當前選擇：{{objectMultiArray[0][multiIndex2[0]].name}}，{{objectMultiArray[1][multiIndex2[1]].name}}
   </view>
</picker>

wxjs

 

Page({
 
  /**
   * 頁面的初始數據
   */
  data: {
    objectMultiArray: [
      [
        {
          id: 0,
          name: '無脊柱動物'
        },
        {
          id: 1,
          name: '脊柱動物'
        }
      ], [
        {
          id: 0,
          name: '扁性動物'
        },
        {
          id: 1,
          name: '線形動物'
        },
        {
          id: 2,
          name: '環節動物'
        },
        {
          id: 3,
          name: '軟體動物'
        },
        {
          id: 3,
          name: '節肢動物'
        }
      ]
    ],
    multiIndex2: [0, 0],
  },
 
  bindMultiPickerChange2: function (e) {
    console.log('picker發送選擇改變，攜帶值為', e.detail.value)
    this.setData({
      multiIndex2: e.detail.value
    })
  },
  bindMultiPickerColumnChange2: function (e) {
    console.log('修改的列為', e.detail.column, '，值為', 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: '扁性動物' },
              { id: 1, name: '線形動物' },
              { id: 2, name: '環節動物' },
              { id: 3, name: '軟體動物' },
              { id: 3, name: '節肢動物' }
            ];
            // data.multiArray[2] = ['豬肉絛蟲', '吸血蟲'];
            break;
          case 1:
            data.objectMultiArray[1] = [
              { id: 0, name: '魚' },
              { id: 1, name: '線形兩棲動物' },
              { id: 2, name: '爬行動物' }
            ];
            break;
        }
        data.multiIndex2[1] = 0;
        // data.multiIndex[2] = 0;
        break;
    }
    this.setData(data);
  }
 
 
})