Custom Summaries
Documentation
The DataGrid support custom summary calculation. In this example, summaries are only calculated against selected grid rows. This behavior is implemented using the calculateCustomSummary and onSelectionChanged options.
Feel free to share demo-related thoughts here.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
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<template>
<div>
<dx-data-grid
id="gridContainer"
:data-source="orders"
:show-borders="true"
:selected-row-keys="[1, 4, 7]"
key-expr="ID"
@selection-changed="onSelectionChanged"
>
<dx-paging :enabled="false"/>
<dx-selection mode="multiple"/>
<dx-column
:width="130"
data-field="OrderNumber"
caption="Invoice Number"
/>
<dx-column
:width="160"
data-field="OrderDate"
data-type="date"
/>
<dx-column
data-field="Employee"
/>
<dx-column
data-field="CustomerStoreCity"
caption="City"
/>
<dx-column
data-field="CustomerStoreState"
caption="State"
/>
<dx-column
data-field="SaleAmount"
alignment="right"
format="currency"
/>
<dx-summary :calculate-custom-summary="calculateSelectedRow">
<dx-total-item
name="SelectedRowsSummary"
summary-type="custom"
value-format="currency"
display-format="Sum: {0}"
show-in-column="SaleAmount"
/>
</dx-summary>
</dx-data-grid>
</div>
</template>
<script>
import {
DxDataGrid,
DxColumn,
DxPaging,
DxSelection,
DxSummary,
DxTotalItem
} from 'devextreme-vue/data-grid';
import service from './data.js';
export default {
components: {
DxDataGrid,
DxColumn,
DxPaging,
DxSelection,
DxSummary,
DxTotalItem
},
data() {
return {
orders: service.getOrders()
};
},
methods: {
calculateSelectedRow(options) {
if (options.name === 'SelectedRowsSummary') {
if (options.summaryProcess === 'start') {
options.totalValue = 0;
} else if (options.summaryProcess === 'calculate') {
if (options.component.isRowSelected(options.value.ID)) {
options.totalValue = options.totalValue + options.value.SaleAmount;
}
}
}
},
onSelectionChanged(e) {
e.component.refresh(true);
}
}
};
</script>
<style scoped>
#gridContainer {
height: 440px;
margin-bottom: 10px;
}
</style>
import Vue from 'vue';
import App from './App.vue';
new Vue({
el: '#app',
components: { App },
template: '<App/>'
});
<!DOCTYPE html>
<html>
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.3/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.3/css/dx.light.css" />
<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script type="text/javascript" src="config.js"></script>
<script type="text/javascript">
System.import('./index.js');
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app">
<span v-if="false">Loading...</span>
</div>
</div>
</body>
</html>
let orders = [{
'ID' : 1,
'OrderNumber' : 35703,
'OrderDate' : '2014-04-10',
'SaleAmount' : 11800,
'Terms' : '15 Days',
'TotalAmount' : 12175,
'CustomerStoreState' : 'California',
'CustomerStoreCity' : 'Los Angeles',
'Employee' : 'Harv Mudd'
}, {
'ID' : 4,
'OrderNumber' : 35711,
'OrderDate' : '2014-01-12',
'SaleAmount' : 16050,
'Terms' : '15 Days',
'TotalAmount' : 16550,
'CustomerStoreState' : 'California',
'CustomerStoreCity' : 'San Jose',
'Employee' : 'Jim Packard'
}, {
'ID' : 5,
'OrderNumber' : 35714,
'OrderDate' : '2014-01-22',
'SaleAmount' : 14750,
'Terms' : '15 Days',
'TotalAmount' : 15250,
'CustomerStoreState' : 'Nevada',
'CustomerStoreCity' : 'Las Vegas',
'Employee' : 'Harv Mudd'
}, {
'ID' : 7,
'OrderNumber' : 35983,
'OrderDate' : '2014-02-07',
'SaleAmount' : 3725,
'Terms' : '15 Days',
'TotalAmount' : 3850,
'CustomerStoreState' : 'Colorado',
'CustomerStoreCity' : 'Denver',
'Employee' : 'Todd Hoffman'
}, {
'ID' : 9,
'OrderNumber' : 36987,
'OrderDate' : '2014-03-11',
'SaleAmount' : 14200,
'Terms' : '15 Days',
'TotalAmount' : 14800,
'CustomerStoreState' : 'Utah',
'CustomerStoreCity' : 'Salt Lake City',
'Employee' : 'Clark Morgan'
}, {
'ID' : 11,
'OrderNumber' : 38466,
'OrderDate' : '2014-03-01',
'SaleAmount' : 7800,
'Terms' : '15 Days',
'TotalAmount' : 8200,
'CustomerStoreState' : 'California',
'CustomerStoreCity' : 'Los Angeles',
'Employee' : 'Harv Mudd'
}, {
'ID' : 15,
'OrderNumber' : 39874,
'OrderDate' : '2014-02-04',
'SaleAmount' : 9050,
'Terms' : '30 Days',
'TotalAmount' : 19100,
'CustomerStoreState' : 'Nevada',
'CustomerStoreCity' : 'Las Vegas',
'Employee' : 'Harv Mudd'
}, {
'ID' : 18,
'OrderNumber' : 42847,
'OrderDate' : '2014-02-15',
'SaleAmount' : 20400,
'Terms' : '30 Days',
'TotalAmount' : 20800,
'CustomerStoreState' : 'Wyoming',
'CustomerStoreCity' : 'Casper',
'Employee' : 'Todd Hoffman'
}, {
'ID' : 19,
'OrderNumber' : 43982,
'OrderDate' : '2014-05-29',
'SaleAmount' : 6050,
'Terms' : '30 Days',
'TotalAmount' : 6250,
'CustomerStoreState' : 'Utah',
'CustomerStoreCity' : 'Salt Lake City',
'Employee' : 'Clark Morgan'
}, {
'ID' : 29,
'OrderNumber' : 56272,
'OrderDate' : '2014-02-06',
'SaleAmount' : 15850,
'Terms' : '30 Days',
'TotalAmount' : 16350,
'CustomerStoreState' : 'Utah',
'CustomerStoreCity' : 'Salt Lake City',
'Employee' : 'Clark Morgan'
}, {
'ID' : 30,
'OrderNumber' : 57429,
'OrderDate' : '2013-12-31',
'SaleAmount' : 11050,
'Terms' : '30 Days',
'TotalAmount' : 11400,
'CustomerStoreState' : 'Arizona',
'CustomerStoreCity' : 'Phoenix',
'Employee' : 'Clark Morgan'
}, {
'ID' : 32,
'OrderNumber' : 58292,
'OrderDate' : '2014-05-13',
'SaleAmount' : 13500,
'Terms' : '15 Days',
'TotalAmount' : 13800,
'CustomerStoreState' : 'California',
'CustomerStoreCity' : 'Los Angeles',
'Employee' : 'Harv Mudd'
}];
export default {
getOrders() {
return orders;
}
};
System.config({
transpiler: 'plugin-babel',
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
vue: 'npm:vue@2.6.3/dist/vue.esm.browser.js',
'vue-loader': 'npm:dx-systemjs-vue-browser@latest/index.js',
'devextreme': 'npm:devextreme@19.2',
'devextreme-vue': 'npm:devextreme-vue@19.2',
jszip: 'npm:jszip@3.1.3/dist/jszip.min.js',
'quill': 'npm:quill@1.3.7/dist/quill.js',
'devexpress-diagram': 'npm:devexpress-diagram',
'devexpress-gantt': 'npm:devexpress-gantt',
'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js'
},
meta: {
'*.vue': { loader: 'vue-loader' }
},
packages: {
'devextreme-vue': {
main: 'index.js'
},
'devextreme': {
defaultExtension: 'js'
}
},
babelOptions: {
sourceMaps: false,
stage0: true
}
});