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Sorting and Grouping in Vue ListBox component

Sorting

The ListBox supports sorting of available items in the alphabetical order that can be either ascending or descending. This can achieved using sortOrder property. Sort order can be None, Ascending or Descending.

In the following example, the SortOrder is set as Descending.

Source
Preview
app.vue
<template>
  <div id="app">
    <div id='container' style="margin:10px auto 0; width:250px;">
        <ejs-listbox :dataSource='groupA' sortOrder="Descending" :fields="fields" ></ejs-listbox>
    </div>
  </div>
</template>
<script>
import Vue from 'vue';
import { ListBoxPlugin } from "@syncfusion/ej2-vue-dropdowns";

Vue.use(ListBoxPlugin);
export default {
  data (){
    return {
groupA: [
    { "Name": "Australia", "Code": "AU" },
    { "Name": "Bermuda", "Code": "BM" },
    { "Name": "Canada", "Code": "CA" },
    { "Name": "Cameroon", "Code": "CM" },
    { "Name": "Denmark", "Code": "DK" },
    { "Name": "France", "Code": "FR" },
    { "Name": "Finland", "Code": "FI" },
    { "Name": "Germany", "Code": "DE" },
    { "Name": "Hong Kong", "Code": "HK" }
];

fields: { text:"Name"}
    }
  }
}

</script>
<style>
@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../node_modules/@syncfusion/ej2-vue-inputs/styles/material.css";
@import "../node_modules/@syncfusion/ej2-vue-dropdowns/styles/material.css";
</style>

Grouping

To get start quickly about how to group the Vue ListBox items, you can check on this video:

The ListBox supports to wrap the nested element into a group based on its category. The category of each list item can be mapped with groupBy field in the data table.

In the following example, vegetables are grouped based on its category.

Source
Preview
app.vue
<template>
  <div id="app">
    <div id='container' style="margin:10px auto 0; width:250px;">
        <ejs-listbox :dataSource='data' :fields="fields" ></ejs-listbox>
    </div>
  </div>
</template>
<script>
import Vue from 'vue';
import { ListBoxPlugin } from "@syncfusion/ej2-vue-dropdowns";

Vue.use(ListBoxPlugin);
export default {
  data (){
    return {
data: [
    { "Vegetable": "Cabbage", "Category": "Leafy and Salad", "Id": "item1" },
    { "Vegetable": "Spinach", "Category": "Leafy and Salad", "Id": "item2" },
    { "Vegetable": "Wheat grass", "Category": "Leafy and Salad", "Id": "item3" },
    { "Vegetable": "Yarrow", "Category": "Leafy and Salad", "Id": "item4" },
    { "Vegetable": "Pumpkins", "Category": "Leafy and Salad", "Id": "item5" },
    { "Vegetable": "Chickpea", "Category": "Beans", "Id": "item6" },
    { "Vegetable": "Green bean", "Category": "Beans", "Id": "item7" },
    { "Vegetable": "Horse gram", "Category": "Beans", "Id": "item8" },
    { "Vegetable": "Garlic", "Category": "Bulb and Stem", "Id": "item9" },
    { "Vegetable": "Nopal", "Category": "Bulb and Stem", "Id": "item10" },
    { "Vegetable": "Onion", "Category": "Bulb and Stem", "Id": "item11" }
];

fields: { groupBy:"Category", text:"Vegetable", value:"Id" }
    }
  }
}

</script>
<style>
@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../node_modules/@syncfusion/ej2-vue-inputs/styles/material.css";
@import "../node_modules/@syncfusion/ej2-vue-dropdowns/styles/material.css";
</style>
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