kendo grid sum of the column

 make sme or aggarate of the particular column look at this Link

look at this data

import { process, State, aggregateBy, AggregateResult, AggregateDescriptor } from "@progress/kendo-data-query"; on constructor top

public aggregates: AggregateDescriptor[] = [

  { field: "units", aggregate: "sum" },];

 filed name wich u want to sum from grid

then pass data to this function

  const count= aggregateBy(this.array3, this.aggregates);

     

        this.totalOldCrtSAN=count.units.sum;

this.array3 is gird data and second step is final result.