【问题标题】:Select rows in Vuetify Data Table在 Vuetify 数据表中选择行
【发布时间】:2020-04-06 08:12:29
【问题描述】:

我想知道如何通过单击 Vuetify 中数据表中的一行来选择/取消选择一行。如果我可以使用 shift+click 或 shift+arrows 来选择范围会更好,但这是另一个问题。

我试图更新我发送到参数“value”中的数组,但在 ui 中从未选择过行。

<template>
  <v-data-table
    :headers="headers"
    :items="desserts"
    item-key="id"
    class="elevation-1"
    :value="selectedRows"
    @click:row="rowClicked"
  ></v-data-table>
</template>

<script>
export default {
  data() {
    return {
      selected: [],
      selectedRows: [],
      headers: [
        {
          text: "Dessert (100g serving)",
          align: "left",
          sortable: false,
          value: "name"
        },
        { text: "Calories", value: "calories" },
        { text: "Fat (g)", value: "fat" },
        { text: "Carbs (g)", value: "carbs" },
        { text: "Protein (g)", value: "protein" },
        { text: "Iron (%)", value: "iron" }
      ],
      desserts: [
        {
          id: 1,
          name: "Frozen Yogurt",
          calories: 159,
          fat: 6.0,
          carbs: 24,
          protein: 4.0,
          iron: "1%"
        },
        {
          id: 2,
          name: "Ice cream sandwich",
          calories: 237,
          fat: 9.0,
          carbs: 37,
          protein: 4.3,
          iron: "1%"
        },
        {
          id: 3,
          name: "Eclair",
          calories: 262,
          fat: 16.0,
          carbs: 23,
          protein: 6.0,
          iron: "7%"
        },
        {
          id: 4,
          name: "Cupcake",
          calories: 305,
          fat: 3.7,
          carbs: 67,
          protein: 4.3,
          iron: "8%"
        },
        {
          id: 5,
          name: "Gingerbread",
          calories: 356,
          fat: 16.0,
          carbs: 49,
          protein: 3.9,
          iron: "16%"
        },
        {
          id: 6,
          name: "Jelly bean",
          calories: 375,
          fat: 0.0,
          carbs: 94,
          protein: 0.0,
          iron: "0%"
        },
        {
          id: 7,
          name: "Lollipop",
          calories: 392,
          fat: 0.2,
          carbs: 98,
          protein: 0,
          iron: "2%"
        },
        {
          id: 8,
          name: "Honeycomb",
          calories: 408,
          fat: 3.2,
          carbs: 87,
          protein: 6.5,
          iron: "45%"
        },
        {
          id: 9,
          name: "Donut",
          calories: 452,
          fat: 25.0,
          carbs: 51,
          protein: 4.9,
          iron: "22%"
        },
        {
          id: 10,
          name: "KitKat",
          calories: 518,
          fat: 26.0,
          carbs: 65,
          protein: 7,
          iron: "6%"
        }
      ]
    };
  },
  methods: {
    rowClicked(row) {
      this.swapSelectionStatus(row.id);
      this.log(row);
    },
    swapSelectionStatus(keyID) {
      if (this.selectedRows.includes(keyID)) {
        this.selectedRows = this.selectedRows.filter(
          selectedKeyID => selectedKeyID !== keyID
        );
      } else {
        this.selectedRows.push(keyID);
      }
    },
    select(e) {
      this.log(e);
    },
    log(logItem) {
      /* eslint-disable no-console */
      console.log(logItem);
    }
  }
};
</script>

【问题讨论】:

    标签: vue.js vuetify.js


    【解决方案1】:

    我想你想改用v-model...

    <v-data-table
        :headers="headers"
        :items="desserts"
        item-key="id"
        v-model="selectedRows"
        class="elevation-1">
          <template v-slot:item="{ item }">
            <tr :class="selectedRows.indexOf(item.id)>-1?'cyan':''" @click="rowClicked(item)">
                <td>{{item.name}}</td>
                <td>{{item.calories}}</td>
                <td>{{item.fat}}</td>
                <td>{{item.carbs}}</td>
                <td>{{item.protein}}</td>
                <td>{{item.iron}}</td>
            </tr>
        </template>
    </v-data-table>
    

    Demo


    您还可以使用 Vuetify 数据表 select 函数来切换选定的行。这比使用自定义方法来处理选择逻辑要容易。

    Demo 2

    【讨论】:

      【解决方案2】:

      这样做,它会正常工作。

      <v-data-table
       :headers="getHeaders"
       :items="fetchDisplayData"
       :search="search"
       flat
       class="elevation-0"
       justify="space-around"
       item-key="user_id"
       v-model="selected"
       show-select
       >
      </v-data-table>
      

      注意两件事 v-modelshow-select 接下来在脚本的数据部分添加 selected 数组

      data(){
        return {
          selected:[{user_id: "FOR_INSTANCE"}]
        }
      }
      

      【讨论】:

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