React ValidationSummary - items

An array of items displayed by the UI component.

Selector: Item
Type:

Array<String | CollectionWidgetItem | any>

Raised Events: onOptionChanged

Generally, the array of items is auto-generated when a validation result is ready. And if you set a custom array of items, it will be overridden by the auto-generated array. So use this property to read the current array of items. Alternatively, you can set the array of items generated by a custom validation engine.

component

An alias for the template property specified in React. Accepts a custom component. Refer to Using a Custom Component for more information.

disabled

Specifies whether the UI component item responds to user interaction.

Type:

Boolean

Default Value: false

html

Specifies the HTML markup to be inserted into the item element.

Type:

String

The ValidationSummary component evaluates the html property's value. This evaluation, however, makes the ValidationSummary potentially vulnerable to XSS attacks. To guard against these attacks, encode the HTML markup before you assign it to the html property. Refer to the following help topic for more information: Potentially Vulnerable API - html.

You can use the text property as a safe alternative.

render

An alias for the template property specified in React. Accepts a rendering function. Refer to Using a Rendering Function for more information.

template

Specifies a template that should be used to render this item only.

Type:

template

Template Data:

CollectionWidgetItem

The item object to be rendered.

jQuery

The following types of the specified value are available.

  • Assign a string containing the name of the required template.
  • Assign a jQuery object of the template's container.
  • Assign a DOM Node of the template's container.
  • Assign a function that returns the jQuery object or a DOM Node of the template's container.

The following example adds a custom item to the component.

index.js
$(function() {
    $("#validationSummaryContainer").dxValidationSummary({
        // ...
        items: [
            {
                // ...
                template: '<div>Custom Item</div>'
            }
        ]
    });
});
Angular

The following types of the specified value are available.

  • Assign a string containing the name of the required template.
  • Assign a DOM Node of the template's container.

The following example adds a custom item to the component. Note that Angular uses custom templates instead of the template property.

app.component.html
app.component.ts
app.module.ts
<dx-validation-summary ... >
    <dxi-item ... >
        <div *dxTemplate>
            <div>Custom Item</div>
        </div>
    </dxi-item>
</dx-validation-summary>
import { Component } from '@angular/core';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent {
    // ...
}
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';

import { DxValidationSummaryModule } from 'devextreme-angular';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        DxValidationSummaryModule
    ],
    providers: [ ],
    bootstrap: [AppComponent]
})
export class AppModule { }
Vue

The following types of the specified value are available.

  • Assign a string containing the name of the required template.
  • Assign a DOM Node of the template's container.

The following example adds a custom item to the component. Note that Vue uses custom templates instead of the template property.

App.vue
<template>
    <DxValidationSummary ... >
        <dxItem ... >
            <div>Custom Item</div>
        </dxItem>
    </DxValidationSummary>
</template>

<script>

import DxValidationSummary, {
    DxItem
} from 'devextreme-vue/validation-summary';

export default {
    components: {
        DxValidationSummary,
        DxItem
    },
    // ...
}
</script>
React

The following types of the specified value are available.

  • Assign a string containing the name of the required template.
  • Assign a DOM Node of the template's container.

The following example adds a custom item to the component. In React, specify the render or component properties.

App.js
import React from 'react';

import ValidationSummary, {
    Item
} from 'devextreme-react/validation-summary';

const renderCustomItem = () => {
    return <div>Custom Item</div>;
}

const App() = () => {
    return (
        <ValidationSummary ... >
            <Item ...
                render={renderCustomItem}
            >
            </Item>
        </ValidationSummary>
    );
}
export default App;
See Also

text

Specifies text displayed for the UI component item.

Type:

String

If you use both this property and a template, the template overrides the text.

visible

Specifies whether or not a UI component item must be displayed.

Type:

Boolean

Default Value: true