<template>
<div class="container-fluid">
<h2>FlexGrid Validation</h2>
<p>
When you use the <b>CollectionView.getError</b> method for validation,
the <b>FlexGrid</b> will show errors in data cells and also in the
row header cells.
</p>
<p>
By default, the row header cells will show all the errors in the item.
To customize that behavior, return the error message you want to show
for the row header when <b>getError</b> is called without a specific
property (prop == null).
</p>
<p>
Try entering an invalid country or a negative number to see how the grid
identifies the error and prevents the invalid entry from being committed:
</p>
<wj-flex-grid :itemsSource="view"></wj-flex-grid>
<h2>Forms Validation</h2>
<p>
You can use the the
<b>CollectionView.getError</b> property to validate forms as well. Simply call the function
and apply the result to the appropriate input element using the
<b>setCustomValidity</b> method that is part of
the HTML5 validation API:
</p>
<form id="theForm" class="form-inline" @input="validateForm($event.target)" @submit="$event.preventDefault()">
<div class="form-group">
<label for="country">Country</label>
<input id="country" type="text" class="form-control" required value="US">
</div>
<div class="form-group">
<label for="downloads">Downloads</label>
<input id="downloads" type="number" class="form-control" required value="123">
</div>
<div class="form-group">
<label for="sales">Sales</label>
<input id="sales" type="number" class="form-control" required value="123">
</div>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
</div>
</template>
<script>
import "bootstrap.css";
import "@mescius/wijmo.styles/wijmo.css";
import Vue from "vue";
import "@mescius/wijmo.vue2.grid";
import * as wijmo from "@mescius/wijmo";
import { getData, countries } from "./data";
let App = Vue.extend({
name: "app",
data: function() {
return {
theItem: {},
view: new wijmo.CollectionView(getData(), {
sortDescriptions: ["country"],
getError: this.getError,
})
};
},
methods: {
validateForm: function(input) {
let propName = input.id;
//
this.theItem[propName] = input.value;
input.setCustomValidity(this.view.getError(this.theItem, propName));
},
getError(item, propName) {
switch (propName) {
case 'country':
return countries.indexOf(item.country) < 0 ? 'Invalid Country' : '';
case 'downloads':
case 'sales':
case 'expenses':
return item[propName] < 0 ? 'Negative values not allowed!' : '';
case 'active':
return item.active && item.country.match(/^(US|Germany)$/)
? 'Active items not allowed in the US or Germany!'
: '';
case null:
let errors = [];
for (let key in item) {
let err = this.getError(item, key);
if (err) errors.push(err);
}
return errors.length > 1
? 'this item has ' + errors.length + ' errors'
: (errors.length == 1 ? errors[0] : null);
}
return null;
}
}
});
new Vue({ render: h => h(App) }).$mount("#app");
</script>
<style>
.form-group {
margin-right: 8px;
}
.form-group > label {
margin-right: 3px;
}
.form-group input:invalid {
border-color: red;
box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(255,0,0,.6);
}
</style>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>MESCIUS Wijmo CollectionView Validation</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>
export function getData() {
let data = [];
//
for (let i = 0; i < countries.length; i++) {
data.push({
country: countries[i],
downloads: Math.round(Math.random() * 20000),
sales: (countries[i] == 'Germany' ? -1 : 1) * Math.random() * 10000,
expenses: (countries[i] == 'US' ? -1 : 1) * Math.random() * 5000,
active: i % 4 == 0
});
}
//
return data;
}
export const countries = ['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece', 'Spain', 'Portugal', 'Australia'];
(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": "npm:@mescius/wijmo.vue2.chart.finance.analytics/index.js",
"@mescius/wijmo.vue2.chart.finance": "npm:@mescius/wijmo.vue2.chart.finance/index.js",
"@mescius/wijmo.vue2.chart.hierarchical": "npm:@mescius/wijmo.vue2.chart.hierarchical/index.js",
"@mescius/wijmo.vue2.chart.interaction": "npm:@mescius/wijmo.vue2.chart.interaction/index.js",
"@mescius/wijmo.vue2.chart.radar": "npm:@mescius/wijmo.vue2.chart.radar/index.js",
'@mescius/wijmo.vue2.chart.map': 'npm:@mescius/wijmo.vue2.chart.map/index.js',
"@mescius/wijmo.vue2.chart": "npm:@mescius/wijmo.vue2.chart/index.js",
"@mescius/wijmo.vue2.core": "npm:@mescius/wijmo.vue2.core/index.js",
"@mescius/wijmo.vue2.gauge": "npm:@mescius/wijmo.vue2.gauge/index.js",
"@mescius/wijmo.vue2.grid.detail": "npm:@mescius/wijmo.vue2.grid.detail/index.js",
"@mescius/wijmo.vue2.grid.filter": "npm:@mescius/wijmo.vue2.grid.filter/index.js",
"@mescius/wijmo.vue2.grid.grouppanel": "npm:@mescius/wijmo.vue2.grid.grouppanel/index.js",
'@mescius/wijmo.vue2.grid.search': 'npm:@mescius/wijmo.vue2.grid.search/index.js',
"@mescius/wijmo.vue2.grid.multirow": "npm:@mescius/wijmo.vue2.grid.multirow/index.js",
"@mescius/wijmo.vue2.grid.sheet": "npm:@mescius/wijmo.vue2.grid.sheet/index.js",
'@mescius/wijmo.vue2.grid.transposed': 'npm:@mescius/wijmo.vue2.grid.transposed/index.js',
'@mescius/wijmo.vue2.grid.transposedmultirow': 'npm:@mescius/wijmo.vue2.grid.transposedmultirow/index.js',
"@mescius/wijmo.vue2.grid": "npm:@mescius/wijmo.vue2.grid/index.js",
"@mescius/wijmo.vue2.input": "npm:@mescius/wijmo.vue2.input/index.js",
"@mescius/wijmo.vue2.olap": "npm:@mescius/wijmo.vue2.olap/index.js",
"@mescius/wijmo.vue2.viewer": "npm:@mescius/wijmo.vue2.viewer/index.js",
"@mescius/wijmo.vue2.nav": "npm:@mescius/wijmo.vue2.nav/index.js",
"@mescius/wijmo.vue2.base": "npm:@mescius/wijmo.vue2.base/index.js",
'@mescius/wijmo.vue2.barcode.common': 'npm:@mescius/wijmo.vue2.barcode.common/index.js',
'@mescius/wijmo.vue2.barcode.composite': 'npm:@mescius/wijmo.vue2.barcode.composite/index.js',
'@mescius/wijmo.vue2.barcode.specialized': 'npm:@mescius/wijmo.vue2.barcode.specialized/index.js',
'bootstrap.css': 'npm:bootstrap/dist/css/bootstrap.min.css',
'jszip': 'npm:jszip/dist/jszip.js',
'css': 'npm:systemjs-plugin-css/css.js',
'vue': 'npm:vue/dist/vue.min.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);
