Footer aggregate in Vue Treegrid component

16 Mar 20237 minutes to read

Footer aggregate value is calculated for all the rows, and it is displayed in the footer cells. Use the footerTemplate property to render the aggregate value in footer cells.

app.vue

<template>
<div id="app">
        <ejs-treegrid :dataSource="data" childMapping='children' :treeColumnIndex='1' height='260px'>
            <e-columns>
                <e-column field='FreightID' headerText='Freight ID' width=90 textAlign='Right'></e-column>
                <e-column field='FreightName' headerText='Freight Name' width=180></e-column>
                <e-column field='UnitWeight' headerText='Unit Per Weight' width=90 type='number' textAlign='Right'></e-column>
                <e-column field='TotalUnits' headerText='Total Units' type='number' width=80 textAlign='Right'></e-column>
            </e-columns>
              <e-aggregates>
                <e-aggregate :showChildSummary='false'>
                    <e-columns>
                        <e-column type="Max" field="UnitWeight" :footerTemplate='footerMax'></e-column>
                        <e-column type="Min" field="TotalUnits" :footerTemplate='footerMin'></e-column>
                    </e-columns>
                </e-aggregate>
          </e-aggregates>
        </ejs-treegrid>
</div>
</template>
<script>
import Vue from "vue";
import { TreeGridPlugin, Aggregate } from "@syncfusion/ej2-vue-treegrid";
import { summaryRowData } from "./datasource.js";

Vue.use(TreeGridPlugin);

export default {
  data() {
    return {
      data: summaryRowData,
            footerMin: function () {
        return  { template : Vue.component('minTemplate', {
            template: `<span>Min: </span>`,
            data () {return { data: {}};}
            })
          }
      },
      footerMax: function () {
        return  { template : Vue.component('maxTemplate', {
            template: `<span>Max: </span>`,
            data () {return { data: {}};}
            })
          }
      }
    };
  },
    provide: {
      treegrid: [Aggregate]
  }
}
</script>

The aggregate values must be accessed inside the template using their corresponding type name.

How to format aggregate value

You can format the aggregate value result by using the format property.

app.vue

<template>
<div id="app">
        <ejs-treegrid :dataSource="data" childMapping='subtasks' :treeColumnIndex='1' height='260px'>
            <e-columns>
                <e-column field='category' headerText='Category' width=160 textAlign='Right'></e-column>
                <e-column field='units' headerText='Total Units' width=130  type='number'></e-column>
                <e-column field='unitPrice' headerText='Unit Price($)' width=110 type='number' format= 'C2' textAlign='Right'></e-column>
                <e-column field='price' headerText='Price($)' type='number' width=160 format= 'C2' textAlign='Right'></e-column>
            </e-columns>
              <e-aggregates>
                <e-aggregate>
                    <e-columns>
                        <e-column type="Sum" field="price"  format="C2" :footerTemplate='footerSum'></e-column>
                    </e-columns>
                </e-aggregate>
          </e-aggregates>
        </ejs-treegrid>
</div>
</template>
<script>
import Vue from "vue";
import { TreeGridPlugin, Aggregate } from "@syncfusion/ej2-vue-treegrid";
import { summaryData } from "./datasource.js";

Vue.use(TreeGridPlugin);

export default {
  data() {
    return {
      data: summaryData,
            footerSum: function () {
        return  { template : Vue.component('minTemplate', {
            template: `<span>Sum: </span>`,
            data () {return { data: {}};}
            })
          }
      }
    };
  },
    provide: {
      treegrid: [Aggregate]
  }
}
</script>