PivotEngine Sort Control (Vue)

The PivotEngine automatically sorts Dimension fields when it generates data summaries. It does not sort Measure fields by default. You can change the sort direction on row and column fields by setting the field's sort property in code. Measure fields are not sorted by default. You can set their sort direction by changing the sortDescriptions property of the engine's pivotView collection. This example shows how you can apply sorts to dimension and measure fields.

Learn about OLAP | PivotPanel Documentation | PivotPanel API Reference

This example uses Vue.

<template> <div class="container-fluid"> <div class="row"> <div class="col-sm-4 panel"> <h4 class="sample-h4"> Sort Dimension fields </h4> <label> Country: <wj-combo-box :items-source="sortOptions" :selectedIndexChanged="onCountrySelectedIndexChanged"> </wj-combo-box> </label> <label> Product: <wj-combo-box :items-source="sortOptions" :selectedIndexChanged="onProductSelectedIndexChanged"> </wj-combo-box> </label> <h4 class="sample-h4"> Sort Measure fields </h4> <label> Sales: <wj-combo-box :items-source="sortOptions2" :initialized="initializeSortSales" :selectedIndexChanged="updateMeasureSort"> </wj-combo-box> </label> <label> Expenses: <wj-combo-box :items-source="sortOptions2" :initialized="initializeSortExpenses" :selectedIndexChanged="updateMeasureSort"> </wj-combo-box> </label> <label> Subtotals: <input id="subtotals" type="checkbox" v-on:click="onSubtotalsClick"> </label> </div> <div class="col-sm-8"> <wj-pivot-grid :items-source="ng" :initialized="initializePivotGrid"> </wj-pivot-grid> </div> </div> </div> </template> <script setup> import "@mescius/wijmo.touch"; import * as wjcCore from "@mescius/wijmo"; import * as wjcOlap from "@mescius/wijmo.olap"; import { getData } from "./data"; import { ref } from "vue"; const ng = ref( new wjcOlap.PivotEngine({ itemsSource: getData(100), rowFields: ["Country", "Product"], valueFields: ["Sales", "Expenses"], }), ); const sortSales = ref(null); const sortExpenses = ref(null); const sortOptions = ref("Ascending,Descending".split(",")); const sortOptions2 = ref("None,Ascending,Descending".split(",")); const pivotGrid = ref(null); function initializePivotGrid(pivotGridref) { pivotGrid.value = pivotGridref; } function initializeSortSales(combo) { sortSales.value = combo; } function initializeSortExpenses(combo) { sortExpenses.value = combo; } function onCountrySelectedIndexChanged(combo) { ng.value.fields.getField("Country").descending = combo.selectedIndex == 1; } function onProductSelectedIndexChanged(combo) { ng.value.fields.getField("Product").descending = combo.selectedIndex == 1; } function onSubtotalsClick(e) { ng.value.showRowTotals = e.target.checked ? wjcOlap.ShowTotals.Subtotals : wjcOlap.ShowTotals.GrandTotals; } function updateMeasureSort() { if (sortSales.value && sortExpenses.value) { let sd = ng.value.pivotView.sortDescriptions; sd.clear(); _addMeasureSort("Sales", sortSales.value.text); _addMeasureSort("Expenses", sortExpenses.value.text); } } function _addMeasureSort(fieldName, sortDirection) { if (sortDirection != "None") { let sd = ng.value.pivotView.sortDescriptions, cols = pivotGrid.value.columns; for (let c = 0; c < cols.length; c++) { let binding = cols[c].binding; if (binding.indexOf(fieldName) == 0) { sd.push(new wjcCore.SortDescription(binding, sortDirection == "Ascending")); } } } } </script> <style> .wj-pivotgrid { box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23); } .panel label { display: block; } .panel label .wj-combobox { font-weight: normal; } h4.sample-h4 { margin-top: 20pt; } body { margin-bottom: 24pt; } </style>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo OLAP Fields Sort</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="compiler.js" type="module"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app.js'); </script> </head> <body> <div id="app"> </div> </body> </html>
export function getData(cnt) { var countries = 'US,Germany,UK,Japan,Italy'.split(','), products = 'Widgets,Gadgets,Doohickeys'.split(','), data = []; for (var i = 0; i < cnt; i++) { data.push({ country: countries[i % countries.length], product: products[i % products.length], downloads: Math.round(Math.random() * 20000), sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } return data; }
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