Data Validation
The DataGrid allows you to validate user input. You can apply pre-defined validation rules or custom rules to individual columns.
In this demo, the following rules are used:
- required
Specifies that cells should not be empty. - pattern
Specifies a pattern that cell values should match. - email
Specifies that cell values match the Email pattern. - async
Specifies custom validation parameters that are used to validate a value on the server.
For more information on these and other validation rules, refer to the following documentation section: Validation Rules.
Feel free to share demo-related thoughts here.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
Thank you!
We appreciate your feedback.
We appreciate your feedback.
<template>
<div>
<DxDataGrid
:data-source="dataSource"
:show-borders="true"
:column-auto-width="true"
:repaint-changes-only="true"
>
<DxEditing
:allow-updating="true"
:allow-adding="true"
mode="batch"
/>
<DxPaging :enabled="false"/>
<DxColumn data-field="FirstName">
<DxRequiredRule/>
</DxColumn>
<DxColumn data-field="LastName">
<DxRequiredRule/>
</DxColumn>
<DxColumn data-field="Position">
<DxRequiredRule/>
</DxColumn>
<DxColumn data-field="Phone">
<DxRequiredRule/>
<DxPatternRule
:pattern="pattern"
message="Your phone must have "(555) 555-5555" format!"
/>
</DxColumn>
<DxColumn data-field="Email">
<DxRequiredRule/>
<DxEmailRule/>
<DxAsyncRule
:validation-callback="asyncValidation"
message="Email address is not unique"
/>
</DxColumn>
</DxDataGrid>
</div>
</template>
<script>
import {
DxDataGrid,
DxColumn,
DxPaging,
DxEditing,
DxRequiredRule,
DxEmailRule,
DxPatternRule,
DxAsyncRule
} from 'devextreme-vue/data-grid';
import { createStore } from 'devextreme-aspnet-data-nojquery';
const url = 'https://js.devexpress.com/Demos/Mvc/api/DataGridEmployeesValidation';
const dataSource = createStore({
key: 'ID',
loadUrl: url,
insertUrl: url,
updateUrl: url,
deleteUrl: url,
onBeforeSend: (method, ajaxOptions) => {
ajaxOptions.xhrFields = { withCredentials: true };
}
});
export default {
components: {
DxDataGrid,
DxColumn,
DxPaging,
DxEditing,
DxRequiredRule,
DxEmailRule,
DxPatternRule,
DxAsyncRule
},
data() {
return {
dataSource,
pattern: /^\(\d{3}\) \d{3}-\d{4}$/i
};
},
methods: {
asyncValidation(params) {
return fetch('https://js.devexpress.com/Demos/Mvc/RemoteValidation/CheckUniqueEmailAddress', {
method: 'POST',
headers: {
'Content-Type': 'application/json;'
},
body: JSON.stringify({
id: params.data.ID,
email: params.value
})
}).then(response => response.json());
}
}
};
</script>
import Vue from 'vue';
import App from './App.vue';
new Vue({
el: '#app',
components: { App },
template: '<App/>'
});
<!DOCTYPE html>
<html>
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.1.8/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.1.8/css/dx.light.css" />
<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script type="text/javascript" src="config.js"></script>
<script type="text/javascript">
System.import('./index.js');
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app">
</div>
</div>
</body>
</html>
System.config({
transpiler: 'plugin-babel',
meta: {
'*.vue': {
loader: 'vue-loader'
},
'devextreme-aspnet-data-nojquery': {
"esModule": true
},
},
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
'vue': 'npm:vue@2.6.3/dist/vue.esm.browser.js',
'vue-loader': 'npm:dx-systemjs-vue-browser@latest/index.js',
'devextreme-aspnet-data-nojquery': 'npm:devextreme-aspnet-data-nojquery@2.6.1',
'devextreme': 'npm:devextreme@20.1',
'devextreme-vue': 'npm:devextreme-vue@20.1',
'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js',
'quill': 'npm:quill@1.3.7/dist/quill.js',
'devexpress-diagram': 'npm:devexpress-diagram@1.0.17',
'devexpress-gantt': 'npm:devexpress-gantt@1.0.10',
'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js'
},
packages: {
'devextreme-vue': {
main: 'index.js'
},
'devextreme': {
defaultExtension: 'js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
},
babelOptions: {
sourceMaps: false,
stage0: true
}
});