Validation | Features | MESCIUS DataViewsJS Angular Demos

This example demonstrates how to use editing validation in the DataViews grid. Before starting editing, Spread.Views fires the editing event. There are four states in the editing life cycle in a normal case. They include beforeStartEditing, startEditing, beforeEndEditing, and endEditing. If the user cancels editing, there are only three states, since beforeEndEditing and endEditing are replaced by cancelEditing. These states offer the opportunity for users to do what they want. This demo sets the validation on the Country and Amount columns during the beforeEndEditing and cancelEditing states. If the committed value does not satisfy the validation, then editing is not stopped by setting args.cancel=true.

<!DOCTYPE html>
<html lang="en">
<head>
<base href="/dataviewsjs/demos/en/sample/Features/Editing/Validation/angular/" />
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="keywords" content="editing, editor, data editor, data editing, validation" />
<meta name="description" content="This example demonstrates how to use editing validation in the DataViews grid." />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Validation | Features | MESCIUS DataViewsJS Angular Demos</title>
<link href="/dataviewsjs/demos/node_modules/normalize.css/normalize.css" rel="stylesheet" type="text/css" />
<link href="/dataviewsjs/demos/static/css/base.css" rel="stylesheet" type="text/css" />
<link href="/dataviewsjs/demos/static/dataviews/gc.dataviews.core.min.css" rel="stylesheet" type="text/css" />
<link href="/dataviewsjs/demos/static/dataviews/gc.dataviews.grid.min.css" rel="stylesheet" type="text/css" />
<link href="styles.css" rel="stylesheet" type="text/css" />
<script src="/dataviewsjs/demos/static/js/angular-polyfills.min.js" type="text/javascript"></script>
<script type="text/javascript">
window.process = {
env: {
NODE_ENV: 'production',
USE_NPM: false,
USE_CDN: false,
SITE_ROOT: '/dataviewsjs/demos',
FRAMEWORK: 'angular',
DVJS_LICENSE_KEY:
'E348418822993781#B0EWvwY4dNNVQqJHUDpFROVWe5ZWNYFlVQFmRsJWRht4Z6lDO4Vla7YUaXhEWxd7Z5YXMuRnY7tWTQRHSlVnaYlXNhlEOpdkZ0FHWYJ5QKd6VXN5aR3ieGhUav9kZTBXWahkYBhEVutmZ72CbjdlZvV5TVdGdiplQsZXe95kUmNmZVF5cJ3mcypWNyx4UydESE3UblxGZyE7KQ94R4BjbUxUewsiaoREMxRDNllWREV6Voh4Q4dDZPRjWrIzUJl4TERXcQZWMHp4Sp9WaMZzN5o6StJmVDJXcwIVVmR6UMVGOlxUW8RmTxZDZTJWVN5GZqJHZuVDMkVGSW3WdxNzKCdDdSB7TzY7cqlnMU5GVyNzNP9WMyhDRvEEOFdkQORDM4dFVlFFWqFWSyMjNQJiOiMlIsISQyIkQ9YjQxIiOigkIsUTM7YjNxYTM0IicfJye&amp;Qf35VfikFVVljI0IyQiwiIxYHITp4c7VWaWFGdhRkI0IiTis7W0ICZyBlIsIiNxUTN6ADI8EDMxMjMwIjI0ICdyNkIsIyc59yc5l6YzVWbuoCLwpmLzVXajNXZt9iKs2WauMXdpN6cl5mLqwSbvNmLzVXajNXZt9iKsAnau26YuMXdpN6cl5mLqwSbvNmL6VGZ9RXajVGchJ7ZuoCLuNmLt36YukHdpNWZwFmcn9iKs46bj9Se4l6YlBXYydmLqwicr9ybj9Se4l6YlBXYydmLqwCcq9ybj9Se4l6YlBXYydmLqIiOiMXbEJCLiMVVJN4UF5kI0ISYONkIsUWdyRnOiwmdFJCLiEDO7MTO9IjM8gTM4gDNzIiOiQWSisnOiQkIsISP3EkVxBVUHFDMplzLlVUdGd7cI9UeIt4SshESzV7NvY7ZxlDOuNTb5tzLr',
SJS_LICENSE_KEY:
'E518585142165236#B0wm4nx4QzdlTHRTSOFzcvVnaJdjSnNEeXdTMUtSUzk6bU94QuVXNwZVZjd4SzYjcadXRIVEMzEXTThkVyR7R85UayoHZZBTYQ5mZyh4Shd6VxFXazF4cBNGRG5WTvUGTsV4T6knQYRzKxxUdk9EarplU7d6VLF6KIR7bPJ5N6ZUMWZWaURGRKRDbLJDN5YjSN5mUoxmaxonSD56LEh7Y7RXenpmTvomevZlV9dkaysCO7hTRQFHcGRWQyc5LI9kQmB7QwR4Z7ZHOR3CSXp6SiFWYzFXeXZUSp94K8VDTkFjdwl4KptSYlRWcDxmNE5kS6kzdrkVcNJXROVGbLJkcTNGRzIER8tmd4YGNhh7dxAnMvIHRv46VtBXS4U5KvJ6dZJ6M5p4TxIjd9I5QSpXTTV6SDZXb7lzaL56ZiojITJCLikTQxUTQFV4NiojIIJCLyETO7UzM7kTO0IicfJye&amp;Qf35VfikkR9IkI0IyQiwiIyEjL6ByUKBCZhVmcwNlI0IiTis7W0ICZyBlIsISNwkTN6ADI8EDMxMjMwIjI0ICdyNkIsIyc59yc5l6YzVWbuoCLwpmLzVXajNXZt9iKs2WauMXdpN6cl5mLqwSbvNmLzVXajNXZt9iKsAnau26YuMXdpN6cl5mLqwSbvNmL6VGZ9RXajVGchJ7ZuoCLuNmLt36YukHdpNWZwFmcn9iKs46bj9Se4l6YlBXYydmLqwicr9ybj9Se4l6YlBXYydmLqwCcq9ybj9Se4l6YlBXYydmLqIiOiMXbEJCLiMVVJN4UF5kI0ISYONkIsUWdyRnOiwmdFJCLiYzMyUjNxIDNxUDO5gTM5IiOiQWSiwSfdtlOicGbmJCLlNHbhZmOiI7ckJye0ICbuFkI1pjIEJCLi4TPRtGOhtWWEFWd4IDOLRVRvx4SyMGcDhTW6n4ep',
},
};
</script>
<script src="/dataviewsjs/demos/static/js/license.js" type="text/javascript"></script>
<script src="/dataviewsjs/demos/node_modules/systemjs/dist/system.js" type="text/javascript"></script>
<script src="systemjs.config.js" type="text/javascript"></script>
</head>
<body class="theme-default">
<noscript>You need to enable JavaScript to run this app.</noscript>
<app-root></app-root>
<script type="text/javascript">
System.import('./app.ts');
</script>
</body>
</html>

import { Component } from '@angular/core';
import { GridLayout } from '@grapecity/dataviews.grid';
import { data } from './data';
const cols = [
{
id: 'id',
caption: 'Id',
dataField: 'id',
width: 80,
allowEditing: false,
},
{
id: 'country',
caption: 'Country',
dataField: 'country',
width: 150,
dataType: 'string',
},
{
id: 'date',
caption: 'Date',
dataField: 'date',
width: 150,
dataType: 'date',
},
{
id: 'amount',
caption: 'Amount',
dataField: 'amount',
width: 80,
format: '$#,##',
dataType: 'number',
},
{
id: 'active',
caption: 'Active',
dataField: 'active',
width: 80,
dataType: 'boolean',
},
];
const layout = new GridLayout({ allowEditing: true });
function checkValidation(colID, item, rule) {
if (item) {
const ruleInfo = rule(item);
if (ruleInfo.validate) {
installValidationUI(colID, ruleInfo.message);
return true;
}
}
unInstallValidationUI(colID);
return false;
}
function amountRule(item) {
const amount = item.amount;
if (amount < 0) {
return {
validate: true,
message: 'Amount field should be a positive number.',
};
}
return {
validate: false,
};
}
function countryRule(item) {
const country = item.country;
if (!country) {
return {
validate: true,
message: 'Country field could not be emptry string.',
};
}
const matchStr = /[a-zA-Z]+/.exec(country);
if (!matchStr || matchStr[0] !== country) {
return {
validate: true,
message: 'Country field could be a string contains a-z or A-Z.',
};
}
if (country[0].toUpperCase() !== country[0]) {
return {
validate: true,
message: 'Country field first letter should be uppercase.',
};
}
return {
validate: false,
};
}
function installValidationUI(colID, message) {
unInstallValidationUI(colID);
const editCol = document.querySelector(`.gc-popup-dialog [data-column="${colID}"]`);
const rect = editCol && getElementRect(editCol);
const eleLeft = rect.left;
const eleTop = rect.top + rect.height;
const html = `<div class="v-container ${colID}" style="position:absolute;left:${eleLeft}px;top:${eleTop}px;">
<div class="v-arrow"></div>
<div class="v-content">
<span class="v-message">${message}</span>
</div>
</div>`;
const element = createElement(html);
document.body.appendChild(element);
}
function unInstallValidationUI(colID) {
const element = document.querySelector(`.v-container.${colID}`);
if (element) {
element.parentNode.removeChild(element);
}
}
function getElementRect(e) {
const rc = e.getBoundingClientRect();
return {
left: rc.left + window.pageXOffset,
top: rc.top + window.pageYOffset,
width: rc.width,
height: rc.height,
};
}
function createElement(html) {
const div = document.createElement('div');
div.innerHTML = html;
return div.children[0];
}
@Component({
selector: 'app-root',
template: `
<gc-dataview
id="grid"
class="grid"
[data]="data"
[cols]="cols"
[layout]="layout"
(editing)="handleEditing($event)"
></gc-dataview>
`,
})
export class AppComponent {
data = data;
cols = cols;
layout = layout;
handleEditing(e) {
const status = e.status;
if (status === 'beforeStartEditing') {
unInstallValidationUI('country');
unInstallValidationUI('amount');
}
if (e.status === 'beforeEndEditing' || e.status === 'cancelEditing') {
let cancel = checkValidation('country', e.newItem, countryRule);
cancel = checkValidation('amount', e.newItem, amountRule) || cancel;
e.cancel = cancel;
}
}
}

import { NgModule, enableProdMode } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { AppComponent } from './app.component';
import { DataViewModule } from '@grapecity/dataviews.angular';
// zone.js should be loaded last to fix error 'ZoneAwarePromise has been overwritten'
import 'zone.js';
@NgModule({
declarations: [AppComponent],
imports: [DataViewModule, BrowserModule, FormsModule],
providers: [],
bootstrap: [AppComponent],
})
export class AppModule {}
if (process.env.NODE_ENV === 'production') {
enableProdMode();
}
platformBrowserDynamic()
.bootstrapModule(AppModule)
.catch((err) => console.error(err));

const countries = ['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece'];
export const data = [];
for (let i = 0; i < 100; i++) {
data.push({
id: i,
country: countries[i % countries.length],
date: new Date(2019, i % 12, (i % 28) + 1),
amount: Math.floor(Math.random() * 10000),
active: i % 4 === 0,
});
}

.v-container {
display: inline-block;
font-size: 13px;
}
.v-content {
background: #ffe95d;
border-radius: 5px;
margin: 5px 3px;
padding: 5px;
position: relative;
width: 135px;
}
.v-arrow {
border: solid transparent;
border-bottom: solid #ffe95d;
border-width: 5px;
left: 25px;
position: absolute;
top: -5px;
}
.gc-editing-template-field input[type=checkbox] {
width: auto;
}
@media only screen and (max-width: 768px) {
.gc-popup-editing-area {
width: 300px;
}
}
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(function () {
const IS_PROD = window.process.env.NODE_ENV === 'production';
const USE_NPM = window.process.env.USE_NPM;
const USE_CDN = window.process.env.USE_CDN;
const SITE_ROOT = window.process.env.SITE_ROOT;
const FRAMEWORK = window.process.env.FRAMEWORK;
const ext = IS_PROD ? '.min.js' : '.js';
function js(name) {
return name + ext;
}
function npm(t) {
if (!t.file) {
t.file = IS_PROD ? t.prod : t.dev;
}
const version = USE_CDN && t.version ? '@' + t.version : '';
const path = t.pkg + version + '/' + t.file;
if (USE_CDN) {
return 'https://unpkg.com/' + path;
}
return 'npm:' + path;
}
function dv(t) {
if (USE_CDN || USE_NPM) {
t.file = 'dist/' + t.file + '.min.js';
return npm(t);
}
return SITE_ROOT + '/static/dataviews/' + js(t.file);
}
const isTypeScript = FRAMEWORK === 'angular';
const babelConfig = {
es2015: true,
react: true,
};
const meta = {
js: {
babelOptions: babelConfig,
},
ts: {
typescriptOptions: {
tsconfig: true
},
},
};
const map = {
// gc.dataviews packages
'@grapecity/dataviews.common': dv({pkg:'@grapecity/dataviews.common',file:'gc.dataviews.common',version:'1.8.17'}),
'@grapecity/dataviews.core': dv({pkg:'@grapecity/dataviews.core',file:'gc.dataviews.core',version:'1.8.17'}),
'@grapecity/dataviews.grid': dv({pkg:'@grapecity/dataviews.grid',file:'gc.dataviews.grid',version:'1.8.17'}),
'@grapecity/dataviews.cardlayout': dv({pkg:'@grapecity/dataviews.cardlayout',file:'gc.dataviews.cardlayout',version:'1.8.17'}),
'@grapecity/dataviews.masonry': dv({pkg:'@grapecity/dataviews.masonry',file:'gc.dataviews.masonry',version:'1.8.17'}),
'@grapecity/dataviews.calendar': dv({pkg:'@grapecity/dataviews.calendar',file:'gc.dataviews.calendar',version:'1.8.17'}),
'@grapecity/dataviews.timeline': dv({pkg:'@grapecity/dataviews.timeline',file:'gc.dataviews.timeline',version:'1.8.17'}),
'@grapecity/dataviews.trellis': dv({pkg:'@grapecity/dataviews.trellis',file:'gc.dataviews.trellis',version:'1.8.17'}),
'@grapecity/dataviews.gantt': dv({pkg:'@grapecity/dataviews.gantt',file:'gc.dataviews.gantt',version:'1.8.17'}),
'@grapecity/dataviews.searchbox': dv({pkg:'@grapecity/dataviews.searchbox',file:'gc.dataviews.searchbox',version:'1.8.17'}),
'@grapecity/dataviews.react': dv({pkg:'@grapecity/dataviews.react',file:'gc.dataviews.react',version:'1.8.17'}),
'@grapecity/dataviews.vue': dv({pkg:'@grapecity/dataviews.vue',file:'gc.dataviews.vue',version:'1.8.17'}),
'@grapecity/dataviews.angular': dv({pkg:'@grapecity/dataviews.angular',file:'gc.dataviews.angular',version:'1.8.17'}),
'@grapecity/dataviews.csvexport': dv({pkg:'@grapecity/dataviews.angular',file:'gc.dataviews.csvexport',version:'1.8.17'}),
// third-party libs
react: npm({pkg:'react',prod:'umd/react.production.min.js',dev:'umd/react.development.js',version:'16.13.1'}),
'react-dom': npm({pkg:'react-dom',prod:'umd/react-dom.production.min.js',dev:'umd/react-dom.development.js',version:'16.13.1'}),
'react-router-dom': npm({pkg:'react-router-dom',prod:'umd/react-router-dom.min.js',dev:'umd/react-router-dom.js',version:'5.2.0'}),
'vue': npm({pkg:'vue',file:'dist/vue.js',version:'2.6.12'}),
'vue-router': npm({pkg:'vue-router',file:'dist/vue-router.js',version:'3.4.3'}),
'lodash': npm({pkg: 'lodash', file: js('lodash')}),
'zone.js': npm({pkg: 'zone.js', file: js('dist/zone')}),
'rxjs': npm({pkg: 'rxjs', file: js('bundles/rxjs.umd')}),
'rxjs/operators': npm({pkg:'rxjs-operators-bundle',prod:'dist/bundle.min.js',dev:'dist/bundle.js',version:'1.0.2'}),
'@angular/core': npm({pkg: '@angular/core', file: js('bundles/core.umd')}),
'@angular/common': npm({pkg: '@angular/common', file: js('bundles/common.umd')}),
'@angular/compiler': npm({pkg: '@angular/compiler', file: js('bundles/compiler.umd')}),
'@angular/platform-browser': npm({pkg: '@angular/platform-browser', file: js('bundles/platform-browser.umd')}),
'@angular/platform-browser-dynamic': npm({pkg: '@angular/platform-browser-dynamic', file: js('bundles/platform-browser-dynamic.umd')}),
'@angular/http': npm({pkg: '@angular/http', file: js('bundles/http.umd')}),
'@angular/common/http': npm({pkg: '@angular/common', file: js('bundles/common-http.umd')}),
'@angular/router': npm({pkg: '@angular/router', file: js('bundles/router.umd')}),
'@angular/forms': npm({pkg: '@angular/forms', file: js('bundles/forms.umd')}),
// systemjs plugins
'systemjs-plugin-json': npm({pkg:'systemjs-plugin-json',file:'json.js',version:'0.3.0'}),
'systemjs-plugin-css': npm({pkg:'systemjs-plugin-css',file:'css.js',version:'0.1.37'}),
'systemjs-plugin-babel': npm({pkg:'systemjs-plugin-babel',file:'plugin-babel.js',version:'0.0.25'}),
'systemjs-babel-build': npm({pkg:'systemjs-plugin-babel',file:'systemjs-babel-browser.js',version:'0.0.25'}),
'plugin-typescript': npm({pkg:'plugin-typescript',file:'lib/plugin.js',version:'8.0.0'}),
'typescript': npm({pkg:'typescript',file:'lib/typescript.js',version:'4.0.2'}),
'systemjs-vue-browser': npm({pkg:'systemjs-vue-browser',file:'index.js',version:'1.0.11'}),
};
const config = {
defaultJSExtensions: true,
transpiler: isTypeScript ? 'plugin-typescript' : 'systemjs-plugin-babel',
typescriptOptions: {
tsconfig: true
},
meta: {
'*.json': {loader: 'systemjs-plugin-json'},
'*.css': {loader: 'systemjs-plugin-css'},
'*.vue': {loader: 'systemjs-vue-browser'},
'*.js': meta.js,
'*.ts': meta.ts,
'app.js': {
format: 'esm',
babelOptions: babelConfig,
},
'typescript': {
exports: 'ts',
},
'@grapecity/dataviews.common': {
format: 'amd',
},
'@grapecity/dataviews.core': {
format: 'amd',
deps: [
'@grapecity/dataviews.common',
],
},
'@grapecity/dataviews.grid': {
format: 'amd',
deps: [
'@grapecity/dataviews.common',
'@grapecity/dataviews.core',
],
},
'@grapecity/dataviews.cardlayout': {
format: 'amd',
deps: [
'@grapecity/dataviews.common',
],
},
'@grapecity/dataviews.masonry': {
format: 'amd',
deps: [
'@grapecity/dataviews.common',
],
},
'@grapecity/dataviews.calendar': {
format: 'amd',
deps: [
'@grapecity/dataviews.common',
'@grapecity/dataviews.core',
],
},
'@grapecity/dataviews.timeline': {
format: 'amd',
deps: [
'@grapecity/dataviews.common',
],
},
'@grapecity/dataviews.trellis': {
format: 'amd',
deps: [
'@grapecity/dataviews.common',
],
},
'@grapecity/dataviews.gantt': {
format: 'amd',
deps: [
'@grapecity/dataviews.common',
],
},
'@grapecity/dataviews.searchbox': {
format: 'amd',
deps: [
'@grapecity/dataviews.common',
],
},
'@grapecity/dataviews.react': {
format: 'amd',
deps: [
'react',
'@grapecity/dataviews.common',
'@grapecity/dataviews.core'
],
},
'@grapecity/dataviews.vue': {
format: 'amd',
deps: [
'vue',
'@grapecity/dataviews.common',
'@grapecity/dataviews.core'
],
},
'@grapecity/dataviews.angular': {
format: 'amd',
deps: [
'@angular/core',
'@grapecity/dataviews.common',
'@grapecity/dataviews.core'
],
},
'@grapecity/dataviews.csvexport': {
format: 'amd',
deps: [
'@grapecity/dataviews.common'
],
},
},
paths: {
// paths serve as alias
'npm:': SITE_ROOT + '/node_modules/',
},
// map tells the System loader where to look for things
map: map,
// packages tells the System loader how to load when no filename and/or no extension
packages: {
'.': { defaultExtension: isTypeScript ? 'ts' : 'js' },
node_modules: { defaultExtension: 'js' },
}
};
// fast format detection to avoid detection by source code using regexp
Object.keys(map).filter(function (key) {
return !config.meta[key];
}).forEach(function (key) {
const path = map[key];
if (path.indexOf('/umd') >= 0 || path.indexOf('.umd') >= 0) {
config.meta[key] = { format: 'amd' };
}
if (path.indexOf('/cjs') >= 0) {
config.meta[key] = { format: 'cjs' };
}
});
System.config(config);
})(this);

Validation (Angular)