条件样式

FlexGrid提供了一个强大的基础结构,用于将单元格绑定到数据并使用CSS格式化单元格。

但在某些情况下可能还不够。 在这些情况下,使用 formatItem 事件来自定义每个单元格中显示的样式或内容。

下面的网格使用 formatItem 来计算和格式化显示当前和前一项中值之间差异的单元格:

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import { Globalize } from '@grapecity/wijmo'; import { FlexGrid, Row, AllowMerging } from '@grapecity/wijmo.grid'; 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 < 200; i++) { data.push({ id: i, country: countries[i % countries.length], sales: Math.random() * 10000, expenses: Math.random() * 5000, }); } // show data in a grid var theGrid = new FlexGrid('#theGrid', { isReadOnly: true, allowResizing: 'None', allowDragging: 'None', allowSorting: false, selectionMode: 'RowRange', alternatingRowStep: 0, autoGenerateColumns: false, columns: [ { binding: 'id', header: 'ID', width: 50 }, { binding: 'country', header: 'Country' }, { binding: 'sales', header: 'Sales', width: 80, format: 'n0' }, { binding: 'salesDiff', header: 'Diff', dataType: 'Number', width: 80, format: 'p0' }, { binding: 'expenses', header: 'Expenses', width: 80, format: 'n0' }, { binding: 'expensesDiff', header: 'Diff', dataType: 'Number', width: 80, format: 'p0' } ], itemsSource: data, }); // insert extra column header row var ch = theGrid.columnHeaders, hr = new Row(); ch.rows.insert(0, hr); // fill out headings in extra header row for (var i = 0; i < theGrid.columns.length; i++) { var hdr = ch.getCellData(1, i, false); if (hdr == 'Diff') hdr = ch.getCellData(1, i - 1, false); ch.setCellData(0, i, hdr); } // allow merging across and down extra header row theGrid.allowMerging = AllowMerging.ColumnHeaders; hr.allowMerging = true; theGrid.columns[0].allowMerging = true; theGrid.columns[1].allowMerging = true; // custom rendering for headers and "Diff" columns theGrid.formatItem.addHandler(function (s, e) { // center-align column headers if (e.panel == s.columnHeaders) { e.cell.innerHTML = '<div class="v-center">' + e.cell.innerHTML + '</div>'; } // custom rendering for "Diff" columns if (e.panel == s.cells) { var col = s.columns[e.col]; if (e.row > 0 && (col.binding == 'salesDiff' || col.binding == 'expensesDiff')) { var vnow = s.getCellData(e.row, e.col - 1), vprev = s.getCellData(e.row - 1, e.col - 1), diff = (vnow / vprev) - 1; // format the cell var html = '<div class="diff-{cls}">' + '<span style="font-size:75%">{val}</span> ' + '<span style="font-size:120%" class="wj-glyph-{glyph}"></span>'; html = html.replace('{val}', Globalize.format(diff, col.format)); if (diff < 0.01) { html = html.replace('{cls}', 'down').replace('{glyph}', 'down'); } else if (diff > 0.01) { html = html.replace('{cls}', 'up').replace('{glyph}', 'up'); } else { html = html.replace('{cls}', 'none').replace('{glyph}', 'circle'); } e.cell.innerHTML = html; } } }); } <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexGrid Conditional Styling</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; } .wj-cell .v-center { position: relative; top: 50%; transform: translateY(-50%); white-space: pre-wrap; } .wj-cell:not(.wj-state-selected):not(.wj-state-multi-selected) .diff-none { color: #d8b400; } .wj-cell:not(.wj-state-selected):not(.wj-state-multi-selected) .diff-up { color: #4c8f00; } .wj-cell:not(.wj-state-selected):not(.wj-state-multi-selected) .diff-down { color: #9f0000; } body { margin-bottom: 20px; } import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; // import { Component, enableProdMode, NgModule } from '@angular/core'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { BrowserModule } from '@angular/platform-browser'; import * as wjcCore from '@grapecity/wijmo'; import * as wjcGrid from '@grapecity/wijmo.grid'; import { WjGridModule } from '@grapecity/wijmo.angular2.grid'; // @Component({ selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent { data: any[]; // DataSvc will be passed by derived classes constructor() { this.data = this._getData(); } initializeGrid(flex: wjcGrid.FlexGrid) { // insert extra column header row let ch = flex.columnHeaders, hr = new wjcGrid.Row(); ch.rows.insert(0, hr); // fill out headings in extra header row for (let i = 0; i < flex.columns.length; i++) { let hdr = ch.getCellData(1, i, false); if (hdr == 'Diff') { hdr = ch.getCellData(1, i - 1, false); } ch.setCellData(0, i, hdr); } // allow merging across and down extra header row flex.allowMerging = wjcGrid.AllowMerging.ColumnHeaders; hr.allowMerging = true; flex.columns[0].allowMerging = true; flex.columns[1].allowMerging = true; // custom rendering for headers and "Diff" columns flex.formatItem.addHandler((s: any, e: wjcGrid.FormatItemEventArgs) => { // center-align column headers if (e.panel == s.columnHeaders) { e.cell.innerHTML = '<div class="v-center">' + e.cell.innerHTML + '</div>'; } // custom rendering for "Diff" columns if (e.panel == s.cells) { let col = s.columns[e.col]; if (e.row > 0 && (col.binding == 'salesDiff' || col.binding == 'expensesDiff')) { let vnow = s.getCellData(e.row, e.col - 1), vprev = s.getCellData(e.row - 1, e.col - 1), diff = (vnow / vprev) - 1; // format the cell let html = '<div class="diff-{cls}">' + '<span style="font-size:75%">{val}</span> ' + '<span style="font-size:120%" class="wj-glyph-{glyph}"></span>'; html = html.replace('{val}', wjcCore.Globalize.format(diff, col.format)); if (diff < 0.01) { html = html.replace('{cls}', 'down').replace('{glyph}', 'down'); } else if (diff > 0.01) { html = html.replace('{cls}', 'up').replace('{glyph}', 'up'); } else { html = html.replace('{cls}', 'none').replace('{glyph}', 'circle'); } e.cell.innerHTML = html; } } }); } private _getData() { // generate 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], sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } return data; } } // @NgModule({ imports: [WjGridModule, 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 Conditional Styling</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"> <wj-flex-grid #flex [isReadOnly]="true" [allowResizing]="'None'" [allowDragging]="'None'" [allowSorting]="false" [selectionMode]="'RowRange'" [alternatingRowStep]="0" (initialized)="initializeGrid(flex)" [(itemsSource)]="data"> <wj-flex-grid-column [binding]="'id'" [header]="'ID'" [width]="50"></wj-flex-grid-column> <wj-flex-grid-column [binding]="'country'" [header]="'Country'"></wj-flex-grid-column> <wj-flex-grid-column [binding]="'sales'" [header]="'Sales'" [width]="80" [format]="'n0'"></wj-flex-grid-column> <wj-flex-grid-column [binding]="'salesDiff'" [header]="'Diff'" [dataType]="'Number'" [width]="80" [format]="'p0'"></wj-flex-grid-column> <wj-flex-grid-column [binding]="'expenses'" [header]="'Expenses'" [width]="80" [format]="'n0'"></wj-flex-grid-column> <wj-flex-grid-column [binding]="'expensesDiff'" [header]="'Diff'" [dataType]="'Number'" [width]="80" [format]="'p0'"></wj-flex-grid-column> </wj-flex-grid> </div> .wj-flexgrid { max-height: 250px; margin: 10px 0; } .wj-cell .v-center { position: relative; top: 50%; transform: translateY(-50%); white-space: pre-wrap; } .wj-cell:not(.wj-state-selected):not(.wj-state-multi-selected) .diff-none { color: #d8b400; } .wj-cell:not(.wj-state-selected):not(.wj-state-multi-selected) .diff-up { color: #4c8f00; } .wj-cell:not(.wj-state-selected):not(.wj-state-multi-selected) .diff-down { color: #9f0000; } body { margin-bottom: 20px; } <template> <div class="container-fluid"> <wj-flex-grid :isReadOnly="true" :allowResizing="'None'" :allowDragging="'None'" :allowSorting="false" :selectionMode="'RowRange'" :alternatingRowStep="0" :initialized="initializeGrid" :itemsSource="data" > <wj-flex-grid-column :binding="'id'" :header="'ID'" :width="50"></wj-flex-grid-column> <wj-flex-grid-column :binding="'country'" :header="'Country'"></wj-flex-grid-column> <wj-flex-grid-column :binding="'sales'" :header="'Sales'" :width="80" :format="'n0'"></wj-flex-grid-column> <wj-flex-grid-column :binding="'salesDiff'" :header="'Diff'" :dataType="'Number'" :width="80" :format="'p0'" ></wj-flex-grid-column> <wj-flex-grid-column :binding="'expenses'" :header="'Expenses'" :width="80" :format="'n0'" ></wj-flex-grid-column> <wj-flex-grid-column :binding="'expensesDiff'" :header="'Diff'" :dataType="'Number'" :width="80" :format="'p0'" ></wj-flex-grid-column> </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 wjcCore from "@grapecity/wijmo"; import * as wjcGrid from "@grapecity/wijmo.grid"; let App = Vue.extend({ name: "app", data: function() { return { data: this._getData() }; }, methods: { initializeGrid(flex) { // insert extra column header row let ch = flex.columnHeaders, hr = new wjcGrid.Row(); ch.rows.insert(0, hr); // fill out headings in extra header row for (let i = 0; i < flex.columns.length; i++) { let hdr = ch.getCellData(1, i, false); if (hdr == "Diff") { hdr = ch.getCellData(1, i - 1, false); } ch.setCellData(0, i, hdr); } // allow merging across and down extra header row flex.allowMerging = wjcGrid.AllowMerging.ColumnHeaders; hr.allowMerging = true; flex.columns[0].allowMerging = true; flex.columns[1].allowMerging = true; // custom rendering for headers and "Diff" columns flex.formatItem.addHandler((s, e) => { // center-align column headers if (e.panel == s.columnHeaders) { e.cell.innerHTML = '<div class="v-center">' + e.cell.innerHTML + "</div>"; } // custom rendering for "Diff" columns if (e.panel == s.cells) { let col = s.columns[e.col]; if ( e.row > 0 && (col.binding == "salesDiff" || col.binding == "expensesDiff") ) { let vnow = s.getCellData(e.row, e.col - 1), vprev = s.getCellData(e.row - 1, e.col - 1), diff = vnow / vprev - 1; // format the cell let html = '<div class="diff-{cls}">' + '<span style="font-size:75%">{val}</span> ' + '<span style="font-size:120%" class="wj-glyph-{glyph}"></span>'; html = html.replace( "{val}", wjcCore.Globalize.format(diff, col.format) ); if (diff < 0.01) { html = html .replace("{cls}", "down") .replace("{glyph}", "down"); } else if (diff > 0.01) { html = html .replace("{cls}", "up") .replace("{glyph}", "up"); } else { html = html .replace("{cls}", "none") .replace("{glyph}", "circle"); } e.cell.innerHTML = html; } } }); }, _getData: function() { // generate 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], sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } return data; } } }); new Vue({ render: h => h(App) }).$mount("#app"); </script> <style> .wj-flexgrid { max-height: 250px; margin: 10px 0; } .wj-cell .v-center { position: relative; top: 50%; transform: translateY(-50%); white-space: pre-wrap; } .wj-cell:not(.wj-state-selected):not(.wj-state-multi-selected) .diff-none { color: #d8b400; } .wj-cell:not(.wj-state-selected):not(.wj-state-multi-selected) .diff-up { color: #4c8f00; } .wj-cell:not(.wj-state-selected):not(.wj-state-multi-selected) .diff-down { color: #9f0000; } 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 wjFlexGrid from '@grapecity/wijmo.react.grid'; import * as wjcCore from '@grapecity/wijmo'; import * as wjcGrid from '@grapecity/wijmo.grid'; class App extends React.Component { constructor(props) { super(props); this.state = { data: this._getData(200) }; } initializeGrid(flex) { // insert extra column header row let ch = flex.columnHeaders, hr = new wjcGrid.Row(); ch.rows.insert(0, hr); // fill out headings in extra header row for (let i = 0; i < flex.columns.length; i++) { let hdr = ch.getCellData(1, i, false); if (hdr == 'Diff') { hdr = ch.getCellData(1, i - 1, false); } ch.setCellData(0, i, hdr); } // allow merging across and down extra header row flex.allowMerging = wjcGrid.AllowMerging.ColumnHeaders; hr.allowMerging = true; flex.columns[0].allowMerging = true; flex.columns[1].allowMerging = true; // custom rendering for headers and "Diff" columns flex.formatItem.addHandler((s, e) => { // center-align column headers if (e.panel == s.columnHeaders) { e.cell.innerHTML = '<div class="v-center">' + e.cell.innerHTML + '</div>'; } // custom rendering for "Diff" columns if (e.panel == s.cells) { let col = s.columns[e.col]; if (e.row > 0 && (col.binding == 'salesDiff' || col.binding == 'expensesDiff')) { let vnow = s.getCellData(e.row, e.col - 1), vprev = s.getCellData(e.row - 1, e.col - 1), diff = (vnow / vprev) - 1; // format the cell let html = '<div class="diff-{cls}">' + '<span style="font-size:75%">{val}</span> ' + '<span style="font-size:120%" class="wj-glyph-{glyph}"></span>'; html = html.replace('{val}', wjcCore.Globalize.format(diff, col.format)); if (diff < 0.01) { html = html.replace('{cls}', 'down').replace('{glyph}', 'down'); } else if (diff > 0.01) { html = html.replace('{cls}', 'up').replace('{glyph}', 'up'); } else { html = html.replace('{cls}', 'none').replace('{glyph}', 'circle'); } e.cell.innerHTML = html; } } }); } _getData(cnt) { // generate 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], sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } return data; } render() { return <div className="container-fluid"> <wjFlexGrid.FlexGrid isReadOnly={true} allowResizing="None" allowDragging="None" allowSorting={false} selectionMode="RowRange" alternatingRowStep={0} initialized={this.initializeGrid} itemsSource={this.state.data}> <wjFlexGrid.FlexGridColumn binding="id" header="ID" width={50}></wjFlexGrid.FlexGridColumn> <wjFlexGrid.FlexGridColumn binding="country" header="Country"></wjFlexGrid.FlexGridColumn> <wjFlexGrid.FlexGridColumn binding="sales" header="Sales" width={80} format="n0"></wjFlexGrid.FlexGridColumn> <wjFlexGrid.FlexGridColumn binding="salesDiff" header="Diff" dataType="Number" width={80} format="p0"></wjFlexGrid.FlexGridColumn> <wjFlexGrid.FlexGridColumn binding="expenses" header="Expenses" width={80} format="n0"></wjFlexGrid.FlexGridColumn> <wjFlexGrid.FlexGridColumn binding="expensesDiff" header="Diff" dataType="Number" width={80} format="p0"></wjFlexGrid.FlexGridColumn> </wjFlexGrid.FlexGrid> </div>; } } 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 Conditional Styling</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; } .wj-cell .v-center { position: relative; top: 50%; transform: translateY(-50%); white-space: pre-wrap; } .wj-cell:not(.wj-state-selected):not(.wj-state-multi-selected) .diff-none { color: #d8b400; } .wj-cell:not(.wj-state-selected):not(.wj-state-multi-selected) .diff-up { color: #4c8f00; } .wj-cell:not(.wj-state-selected):not(.wj-state-multi-selected) .diff-down { color: #9f0000; } body { margin-bottom: 20px; }