aggregateArray
The aggregates which are calculated when the data source populates with data.
The supported aggregates are:
"average"- Only for Number."count"- String, Number and Date."max"- Number and Date."min"- Number and Date."sum"- Only for Number.
The data source calculates aggregates client-side unless the
serverAggregatesoption is set totrue.
Example - specify aggregates
<script>
var dataSource = new kendo.data.DataSource({
data: [
{ name: "Jane Doe", age: 30 },
{ name: "John Doe", age: 33 }
],
aggregate: [
{ field: "age", aggregate: "sum" },
{ field: "age", aggregate: "min" },
{ field: "age", aggregate: "max" }
]
});
dataSource.fetch(function(){
var results = dataSource.aggregates().age;
/* The result can be observed in the DevTools(F12) console of the browser. */
console.log(results.sum, results.min, results.max); // displays "63 30 33"
});
</script>aggregate.aggregateString
The name of the aggregate function.
The supported aggregates are:
"average""count""max""min""sum"
Example - specify an aggregate function
<script>
var dataSource = new kendo.data.DataSource({
data: [
{ name: "Jane Doe", age: 30 },
{ name: "John Doe", age: 33 }
],
aggregate: [
{ field: "age", aggregate: "sum" }
]
});
dataSource.fetch(function(){
var results = dataSource.aggregates().age;
/* The result can be observed in the DevTools(F12) console of the browser. */
console.log(results.sum); // displays "63"
});
</script>aggregate.fieldString
The data item field which will be used to calculate the aggregates.
Example - specify an aggregate field
<script>
var dataSource = new kendo.data.DataSource({
data: [
{ name: "Jane Doe", age: 30 },
{ name: "John Doe", age: 33 }
],
aggregate: [
{ field: "age", aggregate: "sum" }
]
});
dataSource.fetch(function(){
var results = dataSource.aggregates().age;
/* The result can be observed in the DevTools(F12) console of the browser. */
console.log(results.sum); // displays "63"
});
</script>In this article