FlexGridFilter Optimizations

The wijmo.grid.filter module provides a FlexGridFilter class that adds an Excel-style filtering UI to each column. The FlexGridFilter provides two types of filter: by value and by condition. This sample shows how you can optimize the value filters iusing three properties: uniqueValues, maxValues and filterType.

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import * as wjGrid from '@grapecity/wijmo.grid'; import * as wjGridFilter from '@grapecity/wijmo.grid.filter'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { // // generate some random data var countries = 'US,Germany,UK,Japan,Italy,Greece'.split(','), data = []; for (var i = 0; i < 20000; i++) { data.push({ id: i, country: countries[i % countries.length], rating: Math.round(Math.random() * 5), sales: Math.random() * 10000, expenses: Math.random() * 5000, }); } // // FlexGridFilter client-side filtering var theGrid = new wjGrid.FlexGrid('#theGrid', { itemsSource: data }); var filter = new wjGridFilter.FlexGridFilter(theGrid); // // ratings are values from 0 to 5 var filterRating = filter.getColumnFilter('rating'); filterRating.valueFilter.uniqueValues = [0, 1, 2, 3, 4, 5]; // // limit number of values shown in sales filter var filterSales = filter.getColumnFilter('sales'); filterSales.valueFilter.maxValues = 20; // // filter expenses only by condition var filterExpenses = filter.getColumnFilter('expenses'); filterExpenses.filterType = wjGridFilter.FilterType.Condition; } <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexGrid Filter Optimizations</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.src.js"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div class="container-fluid"> <div id="theGrid"> </div> </div> </body> </html> .wj-flexgrid { max-height: 250px; margin:10px 0; } body { margin-bottom: 20px; } import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import { Component, enableProdMode, NgModule, ViewChild } from '@angular/core'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { BrowserModule } from '@angular/platform-browser'; import { WjGridModule } from '@grapecity/wijmo.angular2.grid'; import { WjGridFilterModule } from '@grapecity/wijmo.angular2.grid.filter'; import * as wjcGridFilter from '@grapecity/wijmo.grid.filter'; @Component({ selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent { data: any[]; constructor() { this.data = this._getData(); } @ViewChild('filter') filter: wjcGridFilter.FlexGridFilter; ngAfterViewInit() { // ratings are values from 0 to 5 let filterRating = this.filter.getColumnFilter('rating'); filterRating.valueFilter.uniqueValues = [0, 1, 2, 3, 4, 5]; // limit number of values shown in sales filter let filterSales = this.filter.getColumnFilter('sales'); filterSales.valueFilter.maxValues = 20; // filter expenses only by condition let filterExpenses = this.filter.getColumnFilter('expenses'); filterExpenses.filterType = wjcGridFilter.FilterType.Condition; } private _getData() { // create some random data let countries = 'US,Germany,UK,Japan,Italy,Greece'.split(','), data = []; for (let i = 0; i < 200; i++) { data.push({ id: i, country: countries[i % countries.length], rating: Math.round(Math.random() * 5), sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } return data; } } @NgModule({ imports: [WjGridModule, WjGridFilterModule, BrowserModule], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { } enableProdMode(); // Bootstrap application with hash style navigation and global services. platformBrowserDynamic().bootstrapModule(AppModule); <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexGrid Filter Optimizations</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- Polyfills --> <script src="node_modules/core-js/client/shim.min.js"></script> <script src="node_modules/zone.js/dist/zone.min.js"></script> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.js"></script> <script src="systemjs.config.js"></script> <script> // workaround to load 'rxjs/operators' from the rxjs bundle System.import('rxjs').then(function (m) { System.set(SystemJS.resolveSync('rxjs/operators'), System.newModule(m.operators)); System.import('./src/app.component'); }); </script> </head> <body> <app-component></app-component> </body> </html> <div class="container-fluid"> <!-- the grid --> <wj-flex-grid #flex [(itemsSource)]="data"> <wj-flex-grid-filter #filter></wj-flex-grid-filter> </wj-flex-grid> </div> .wj-flexgrid { max-height: 250px; margin:10px 0; } body { margin-bottom: 20px; } <template> <div class="container-fluid"> <!-- the grid --> <wj-flex-grid :itemsSource="data"> <wj-flex-grid-filter :initialized="initialized"></wj-flex-grid-filter> </wj-flex-grid> </div> </template> <script> import "@grapecity/wijmo.styles/wijmo.css"; import "bootstrap.css"; import Vue from "vue"; import "@grapecity/wijmo.vue2.grid"; import * as wjcGrid from "@grapecity/wijmo.grid"; import "@grapecity/wijmo.vue2.grid.filter"; import * as wjcCore from "@grapecity/wijmo"; import * as wjcGridFilter from "@grapecity/wijmo.grid.filter"; let App = Vue.extend({ name: "app", data: function() { return { data: this.getData() }; }, methods: { getData: function() { // create some random data let countries = "US,Germany,UK,Japan,Italy,Greece".split(","), data = []; for (let i = 0; i < 200; i++) { data.push({ id: i, country: countries[i % countries.length], rating: Math.round(Math.random() * 5), sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } return data; }, initialized: function(filter) { this.filter = filter; } }, mounted: function() { let filterRating = this.filter.getColumnFilter("rating"); filterRating.valueFilter.uniqueValues = [0, 1, 2, 3, 4, 5]; // limit number of values shown in sales filter let filterSales = this.filter.getColumnFilter("sales"); filterSales.valueFilter.maxValues = 20; // filter expenses only by condition let filterExpenses = this.filter.getColumnFilter("expenses"); filterExpenses.filterType = wjcGridFilter.FilterType.Condition; } }); new Vue({ render: h => h(App) }).$mount("#app"); </script> <style> .wj-flexgrid { max-height: 250px; margin: 10px 0; } body { margin-bottom: 20px; } </style> <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>AutoComplete</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.src.js"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app.vue'); </script> </head> <body> <div id="app"> </div> </body> </html> import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './app.css'; // import * as React from 'react'; import * as ReactDOM from 'react-dom'; import * as wjGrid from '@grapecity/wijmo.react.grid'; import { getData } from "./data"; import * as wjFilter from "@grapecity/wijmo.react.grid.filter"; import * as wjcGridFilter from '@grapecity/wijmo.grid.filter'; class App extends React.Component { constructor(props) { super(props); this.state = { data: getData() }; } render() { return <div className="container-fluid"> <wjGrid.FlexGrid allowSorting={false} itemsSource={this.state.data}> <wjFilter.FlexGridFilter initialized={this.initialized.bind(this)}> </wjFilter.FlexGridFilter> </wjGrid.FlexGrid> </div>; } initialized(filter) { this.filter = filter; } componentDidMount() { let filterRating = this.filter.getColumnFilter("rating"); filterRating.valueFilter.uniqueValues = [0, 1, 2, 3, 4, 5]; // limit number of values shown in sales filter let filterSales = this.filter.getColumnFilter("sales"); filterSales.valueFilter.maxValues = 20; // filter expenses only by condition let filterExpenses = this.filter.getColumnFilter("expenses"); filterExpenses.filterType = wjcGridFilter.FilterType.Condition; } } ReactDOM.render(<App />, document.getElementById('app')); <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexGrid Custom Filter Icons</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.src.js"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div id="app"></div> </body> </html> .wj-flexgrid { max-height: 250px; margin: 10px 0; } body { margin-bottom: 20px; } export function getData() { // create some random data let countries = "US,Germany,UK,Japan,Italy,Greece".split(","), data = []; for (let i = 0; i < 200; i++) { data.push({ id: i, country: countries[i % countries.length], rating: Math.round(Math.random() * 5), sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } return data; }