Web Components Button Group Overview

The Web Components Button Group component is used to organize IgcToggleButtonComponent's into styled button groups with horizontal/vertical alignment, single/multiple selection and toggling.

Web Components Button Example

Usage

Primeiro, você precisa instalar o Ignite UI for Web Components executando o seguinte comando:

npm install igniteui-webcomponents

You will then need to import the IgcButtonGroupComponent, its necessary CSS, and register its module, like so:

import { defineComponents, IgcButtonGroupComponent } from "igniteui-webcomponents";
import 'igniteui-webcomponents/themes/light/bootstrap.css';

defineComponents(IgcButtonGroupComponent);

Para uma introdução completa ao Ignite UI for Web Components, leia o tópico Introdução.

Now that you have the Ignite UI for Web Components Button Group imported, you can start with a basic configuration of the IgcButtonGroupComponent and its buttons.

Use the IgcButtonGroupComponent selector to wrap your IgcToggleButtonComponents and display them into a button group. If you want a button to be selected by default, use the selected attribute:

 <igc-button-group>
    <igc-toggle-button value="left">
        <igc-icon name="format_align_left" collection="material"></igc-icon>
        <igc-ripple></igc-ripple>
    </igc-toggle-button>

    <igc-toggle-button value="center">
        <igc-icon name="format_align_center" collection="material"></igc-icon>
        <igc-ripple></igc-ripple>
    </igc-toggle-button>

    <igc-toggle-button value="right">
        <igc-icon name="format_align_right" collection="material"></igc-icon>
        <igc-ripple></igc-ripple>
    </igc-toggle-button>

    <igc-toggle-button value="justify" selected>
        <igc-icon name="format_align_justify" collection="material"></igc-icon>
        <igc-ripple></igc-ripple>
    </igc-toggle-button>
</igc-button-group>

Examples

Alignment

Use the alignment property to set the orientation of the buttons in the button group.

Escolha

In order to configure the Ignite UI for Web Components IgcButtonGroupComponent selection, you could use its selection property. This property accepts the following three modes:

single- modo de seleção padrão do grupo de botões. Um único botão pode ser selecionado/desselecionado pelo usuário.
single-required - mimics a radio group behavior. Only one button can be selected and once initial selection is made, deselection is not possible through user interaction.
multiple - multiple buttons in the group can be selected and deselected.

The sample below demonstrates the exposed IgcButtonGroupComponent selection modes:

A IgcToggleButtonComponent could be marked as selected via its selected attribute or through the IgcButtonGroupComponent selectedItems attribute:

<igc-button-group selected-items='["bold"]'>
    <igc-toggle-button value="bold">
        <igc-icon name="bold" collection="material"></igc-icon>
        <igc-ripple></igc-ripple>
    </igc-toggle-button>

    <igc-toggle-button value="italic">
        <igc-icon name="italic" collection="material"></igc-icon>
        <igc-ripple></igc-ripple>
    </igc-toggle-button>

    <igc-toggle-button value="underlined">
        <igc-icon name="underlined" collection="material"></igc-icon>
        <igc-ripple></igc-ripple>
    </igc-toggle-button>
</igc-button-group>

[!Note] Setting IgcToggleButtonComponent value attribute is mandatory for using the selectedItems property of the IgcButtonGroupComponent.

Tamanho

A propriedade personalizada CSS--ig-size pode ser usada para controlar o tamanho do grupo de botões.

Styling

The IgcButtonGroupComponent component exposes group CSS part that allows us to style the button group container. Also, the IgcToggleButtonComponents provide toggle CSS part that could be used to style the button element.

igc-button-group::part(group) {
  background-color: var(--ig-primary-500);
  padding: 8px;
}

igc-toggle-button::part(toggle) {
  color: var(--ig-secondary-300);
}