ValidationGroup

The ValidationGroup is a widget that allows you to validate several editors simultaneously.

Included in: dx.mobile.js, dx.web.js, dx.viz-web.js, dx.all.js
Export: default
NOTE
Nested validation groups are not supported.

DevExtreme widgets are integrated with many popular libraries and frameworks. See the Installation section (for JavaScript libraries) or the Prerequisites and Installation section (for ASP.NET MVC framework) to find details on setting up DevExtreme with a particular library or framework.

The following code shows how to create the ValidationGroup widget using every supported library and framework. For more details on working with widgets in these libraries and frameworks, see the Widget Basics topic for jQuery, Angular, AngularJS, Knockout or ASP.NET MVC.

jQuery
JavaScript
HTML
$(function() {
    var validationGroupName = "sampleGroup";
    $("#textBox1").dxTextBox({ name: 'FirstName' })
        .dxValidator({
            validationRules: [
                // ...
            ],
            validationGroup: validationGroupName
        });
    $("#textBox2").dxTextBox({ name: 'LastName' })
        .dxValidator({
            validationRules: [
                // ...
            ],
            validationGroup: validationGroupName
        });
    $("#summary").dxValidationSummary({
        validationGroup: validationGroupName
    });
    $("#button").dxButton({
        validationGroup: validationGroupName
        //...
    });
});
<div id="textBox1"></div>
<div id="textBox2"></div>
<div id="summary"></div>
<div id="button"></div>
Angular
HTML
TypeScript
<dx-validation-group>
    <dx-text-box name="FirstName">
        <dx-validator>
            <dxi-validation-rule type="required" message="First name is required"></dxi-validation-rule>
            ...
        </dx-validator>
    </dx-text-box>
    <dx-text-box name="LastName">
        <dx-validator>
            <dxi-validation-rule type="required" message="Last name is required"></dxi-validation-rule>
            ...
        </dx-validator>
    </dx-text-box>
    <dx-validation-summary></dx-validation-summary>
    <dx-button></dx-button>
</dx-validation-group>
import { DxValidationGroupModule, DxTextBoxModule, DxButtonModule, DxValidatorModule } from 'devextreme-angular'
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxValidationGroupModule,
        DxTextBoxModule,
        DxButtonModule,
        DxValidatorModule
    ],
    // ...
})
AngularJS
HTML
<div dx-validation-group="{ }" ng-controller="DemoController">
    <div dx-text-box="{ name: 'FirstName' }"
        dx-validator="{
            validationRules: [
                // ...
            ]
        }">  
    </div>
    <div dx-text-box="{ name: 'LastName' }"
        dx-validator="{
            validationRules: [
                // ...
            ]
        }">
    </div>
    <div dx-validation-summary="{  }"></div>
    <div dx-button="{ }"></div>
</div>
Knockout
HTML
<div data-bind="dxValidationGroup: { }" >
    <div data-bind="dxTextBox: { name: 'FirstName' },
        dxValidator: {
            validationRules: [
                // ...
            ]
        }">  
    </div>
    <div data-bind="dxTextBox: { name: 'LastName' },
        dxValidator: {
            validationRules: [
                // ...
            ]
        }">
    </div>  
    <div data-bind="dxValidationSummary: { }"></div>
    <div data-bind="dxButton: { }"></div>
</div>
ASP.NET MVC Controls
Razor C#
Razor VB
using (Html.DevExtreme().ValidationGroup()) {
    @(Html.DevExtreme().TextBox()
        .Name("FirstName")
    )
    @(Html.DevExtreme().TextBox()
        .Name("LastName")
    )
    @(Html.DevExtreme().ValidationSummary())
    @(Html.DevExtreme().Button()
        .Text("Validate")
        .OnClick(@<text>
            function validate (params) {
                params.validationGroup.validate();
            }
        </text>)
    )
}
@Using (Html.DevExtreme().ValidationGroup())
    @(Html.DevExtreme().TextBox() _
        .Name("FirstName")
    )
    @(Html.DevExtreme().TextBox() _
        .Name("LastName")
    )
    @(Html.DevExtreme().ValidationSummary())
    @(Html.DevExtreme().Button() _
        .Text("Validate") _
        .OnClick("validate")
    )
End Using
<script>
    function validate(params) {
        params.validationGroup.validate();
    }
</script>
See Also

You can use the DevExpress.validationEngine.validateGroup(group) method to validate a particular validation group by passing its instance as a parameter.

JavaScript
DevExpress.validationEngine.validateGroup($("#sampleGroup").dxValidationGroup("instance"));

In addition, you can access a validation group's configuration using the DevExpress.validationEngine.getGroupConfig(group) method. The returned configuration exposes the validators included to the group, the validate() method to validate the editors that are associated with the validators and the validated event that occurs after the group is validated.

Watch Video

Show Example:
AngularJS
Knockout
jQuery

Configuration

An object defining configuration options for the ValidationGroup widget.

Methods

This section describes members used to manipulate the widget.

Events

This section describes events fired by this widget.

See Also