Custom Cell Content (Vue)

The FlexGrid control provides a powerful infrastructure for binding cells to data and formatting the cells using CSS, but in some cases that may not be enough. In those situations, use the formatItem event to customize the style or the content presented in each cell. The grid below uses formatItem to format cells with star ratings and sparklines.

Learn about FlexGrid | FlexGrid API Reference

This example uses Vue.

<template> <div class="container-fluid"> <wj-flex-grid :isReadOnly="true" :allowResizing="'None'" :alternatingRowStep="0" :initialized="initializeGrid" :itemsSource="data"> <wj-flex-grid-column :binding="'rank'" :header="'#'" :width="50"></wj-flex-grid-column> <wj-flex-grid-column :binding="'title'" :header="'Title'" :width="'2*'"></wj-flex-grid-column> <wj-flex-grid-column :binding="'rating'" :header="'Rating'" :align="'center'" :cssClass="'cell-rating'" :width="'*'"></wj-flex-grid-column> <wj-flex-grid-column :binding="'attendance'" :header="'Attendance'" :cssClass="'cell-attendance'" :width="'2*'"></wj-flex-grid-column> <wj-flex-grid-column :binding="'revenue'" :header="'Revenue'" :cssClass="'cell-revenue'" :width="'2*'"></wj-flex-grid-column> </wj-flex-grid> </div> </template> <script> import "@mescius/wijmo.styles/wijmo.css"; import "bootstrap.css"; import { createApp } from "vue" import { registerGrid } from "@mescius/wijmo.vue2.grid"; import * as wjcCore from "@mescius/wijmo"; let App = { name: "app", data: function () { return { data: this._getData(200) }; }, methods: { initializeGrid: function (flex) { flex.formatItem.addHandler((s, e) => { if (e.panel == s.cells) { var item = s.rows[e.row].dataItem; switch (s.columns[e.col].binding) { case "rating": this._formatRatingCell(e.cell, item.rating); break; case "attendance": this._formatAttendanceCell(e.cell, item.attendance); break; case "revenue": this._formatRevenueCell(e.cell, item.revenue); break; } } }); }, _formatRatingCell: function (cell, rating) { let html = '<div aria-label="rating:' + rating + ' stars">'; for (let i = 0; i < rating; i++) { html += '<span class="glyphicon glyphicon-star"></span>'; } html += "</div>"; cell.innerHTML = html; }, _formatAttendanceCell: function (cell, data) { cell.innerHTML = this._getSparklines(data); }, _formatRevenueCell: function (cell, data) { cell.innerHTML = this._getSparkbars(data); }, // generate sparklines as SVG _getSparklines: function (data) { let svg = "", min = Math.min.apply(Math, data), max = Math.max.apply(Math, data), x1 = 0, y1 = this._scaleY(data[0], min, max), x2, y2; for (let i = 1; i < data.length; i++) { x2 = Math.round((i / (data.length - 1)) * 100); y2 = this._scaleY(data[i], min, max); svg += "<line x1=" + x1 + "% y1=" + y1 + "% x2=" + x2 + "% y2=" + y2 + "% />"; x1 = x2; y1 = y2; } return this._wrapSvg(svg, "sparklines"); }, _getSparkbars: function (data) { let svg = "", min = Math.min.apply(Math, data), max = Math.max.apply(Math, data), base = Math.min(max, Math.max(min, 0)), basey = this._scaleY(base, min, max), w = Math.round(100 / data.length) - 2, x, y; for (let i = 0; i < data.length; i++) { x = i * Math.round(100 / data.length) + 1; y = this._scaleY(data[i], min, max); svg += "<rect x=" + x + "% width=" + w + "% y=" + Math.min(y, basey) + "% height=" + Math.abs(y - basey) + "% />"; } svg += "<rect x=0% width=100% height=1 y=" + basey + "% opacity=.5 />"; return this._wrapSvg(svg, "sparkbars"); }, _scaleY: function (value, min, max) { return 100 - Math.round(((value - min) / (max - min)) * 100); }, _wrapSvg: function (svg, title) { return ( '<div aria-label="' + title + '" ' + 'style="width:100%;height:100%;box-sizing:border-box;padding:4px">' + '<svg width="100%" height="100%" style="stroke:currentColor;"><g>' + svg + "</g></svg></div>" ); }, _getData: function () { return [ { rank: 1, title: "The Wizard of Oz", rating: 4, attendance: this._getArr(40), revenue: this._getArr(20) }, { rank: 2, title: "Citizen Kane", rating: 5, attendance: this._getArr(40), revenue: this._getArr(20) }, { rank: 3, title: "The Godfather", rating: 5, attendance: this._getArr(40), revenue: this._getArr(20) }, { rank: 4, title: "Metropolis", rating: 4, attendance: this._getArr(40), revenue: this._getArr(20) }, { rank: 5, title: "Singing' in the Rain", rating: 2, attendance: this._getArr(40), revenue: this._getArr(20) }, { rank: 6, title: "Casablanca", rating: 3, attendance: this._getArr(40), revenue: this._getArr(20) }, { rank: 7, title: "Alien", rating: 5, attendance: this._getArr(40), revenue: this._getArr(20) }, { rank: 8, title: "Vertigo", rating: 2, attendance: this._getArr(40), revenue: this._getArr(20) }, { rank: 9, title: "Gone with the Wind", rating: 4, attendance: this._getArr(40), revenue: this._getArr(20) }, { rank: 10, title: "Chinatown", rating: 2, attendance: this._getArr(40), revenue: this._getArr(20) } ]; }, _getArr: function (len) { let arr = []; for (let i = 0; i < len; i++) { arr.push(Math.round(Math.random() * 100)); } return arr; } } }; const app = createApp(App); registerGrid(app) app.mount('#app'); </script> <style> .wj-flexgrid { max-height: 250px; margin: 10px 0; } .cell-rating { color: gold; } .cell-attendance:not(.wj-state-selected):not(.wj-state-multi-selected), .cell-revenue:not(.wj-state-selected):not(.wj-state-multi-selected) { color: blue; } 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>MESCIUS Wijmo FlexGrid Sparklines</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <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.vue'); </script> </head> <body> <div id="app"> </div> </body> </html>
(function (global) { System.config({ transpiler: 'plugin-babel', babelOptions: { es2015: true }, meta: { '*.css': { loader: 'css' }, '*.vue': { loader: 'vue-loader' } //'*.vue': { loader: 'systemjs-plugin-vue' } }, paths: { // paths serve as alias 'npm:': 'node_modules/' }, // map tells the System loader where to look for things map: { '@mescius/wijmo': 'npm:@mescius/wijmo/index.js', '@mescius/wijmo.input': 'npm:@mescius/wijmo.input/index.js', '@mescius/wijmo.styles': 'npm:@mescius/wijmo.styles', '@mescius/wijmo.cultures': 'npm:@mescius/wijmo.cultures', '@mescius/wijmo.chart': 'npm:@mescius/wijmo.chart/index.js', '@mescius/wijmo.chart.analytics': 'npm:@mescius/wijmo.chart.analytics/index.js', '@mescius/wijmo.chart.animation': 'npm:@mescius/wijmo.chart.animation/index.js', '@mescius/wijmo.chart.annotation': 'npm:@mescius/wijmo.chart.annotation/index.js', '@mescius/wijmo.chart.finance': 'npm:@mescius/wijmo.chart.finance/index.js', '@mescius/wijmo.chart.finance.analytics': 'npm:@mescius/wijmo.chart.finance.analytics/index.js', '@mescius/wijmo.chart.hierarchical': 'npm:@mescius/wijmo.chart.hierarchical/index.js', '@mescius/wijmo.chart.interaction': 'npm:@mescius/wijmo.chart.interaction/index.js', '@mescius/wijmo.chart.radar': 'npm:@mescius/wijmo.chart.radar/index.js', '@mescius/wijmo.chart.render': 'npm:@mescius/wijmo.chart.render/index.js', '@mescius/wijmo.chart.webgl': 'npm:@mescius/wijmo.chart.webgl/index.js', '@mescius/wijmo.chart.map': 'npm:@mescius/wijmo.chart.map/index.js', '@mescius/wijmo.gauge': 'npm:@mescius/wijmo.gauge/index.js', '@mescius/wijmo.grid': 'npm:@mescius/wijmo.grid/index.js', '@mescius/wijmo.grid.detail': 'npm:@mescius/wijmo.grid.detail/index.js', '@mescius/wijmo.grid.filter': 'npm:@mescius/wijmo.grid.filter/index.js', '@mescius/wijmo.grid.search': 'npm:@mescius/wijmo.grid.search/index.js', '@mescius/wijmo.grid.grouppanel': 'npm:@mescius/wijmo.grid.grouppanel/index.js', '@mescius/wijmo.grid.multirow': 'npm:@mescius/wijmo.grid.multirow/index.js', '@mescius/wijmo.grid.transposed': 'npm:@mescius/wijmo.grid.transposed/index.js', '@mescius/wijmo.grid.transposedmultirow': 'npm:@mescius/wijmo.grid.transposedmultirow/index.js', '@mescius/wijmo.grid.pdf': 'npm:@mescius/wijmo.grid.pdf/index.js', '@mescius/wijmo.grid.sheet': 'npm:@mescius/wijmo.grid.sheet/index.js', '@mescius/wijmo.grid.xlsx': 'npm:@mescius/wijmo.grid.xlsx/index.js', '@mescius/wijmo.grid.selector': 'npm:@mescius/wijmo.grid.selector/index.js', '@mescius/wijmo.grid.cellmaker': 'npm:@mescius/wijmo.grid.cellmaker/index.js', '@mescius/wijmo.nav': 'npm:@mescius/wijmo.nav/index.js', '@mescius/wijmo.odata': 'npm:@mescius/wijmo.odata/index.js', '@mescius/wijmo.olap': 'npm:@mescius/wijmo.olap/index.js', '@mescius/wijmo.rest': 'npm:@mescius/wijmo.rest/index.js', '@mescius/wijmo.pdf': 'npm:@mescius/wijmo.pdf/index.js', '@mescius/wijmo.pdf.security': 'npm:@mescius/wijmo.pdf.security/index.js', '@mescius/wijmo.viewer': 'npm:@mescius/wijmo.viewer/index.js', '@mescius/wijmo.xlsx': 'npm:@mescius/wijmo.xlsx/index.js', '@mescius/wijmo.undo': 'npm:@mescius/wijmo.undo/index.js', '@mescius/wijmo.interop.grid': 'npm:@mescius/wijmo.interop.grid/index.js', '@mescius/wijmo.touch': 'npm:@mescius/wijmo.touch/index.js', '@mescius/wijmo.cloud': 'npm:@mescius/wijmo.cloud/index.js', '@mescius/wijmo.barcode': 'npm:@mescius/wijmo.barcode/index.js', '@mescius/wijmo.barcode.common': 'npm:@mescius/wijmo.barcode.common/index.js', '@mescius/wijmo.barcode.composite': 'npm:@mescius/wijmo.barcode.composite/index.js', '@mescius/wijmo.barcode.specialized': 'npm:@mescius/wijmo.barcode.specialized/index.js', "@mescius/wijmo.vue2.chart.analytics": "npm:@mescius/wijmo.vue2.chart.analytics/index.js", "@mescius/wijmo.vue2.chart.animation": "npm:@mescius/wijmo.vue2.chart.animation/index.js", "@mescius/wijmo.vue2.chart.annotation": "npm:@mescius/wijmo.vue2.chart.annotation/index.js", "@mescius/wijmo.vue2.chart.finance.analytics": 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'@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', 'vue-loader': 'npm:systemjs-vue-browser/index.js', //'systemjs-plugin-vue': 'npm:systemjs-plugin-vue/index.js', 'plugin-babel': 'npm:systemjs-plugin-babel/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel/systemjs-babel-browser.js' }, // packages tells the System loader how to load when no filename and/or no extension packages: { src: { defaultExtension: 'js' }, rxjs: { defaultExtension: 'js' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);