Checkbox

The QCheckbox component is another basic element for user input. You can use this to supply a way for the user to toggle an option.

TIP

Please also refer to the QOptionGroup on other possibilities for creating groups of Checkboxes.

Installation

/*
 * No installation step is necessary.
 * It gets installed by default by @quasar/app v2+.
 */

Usage

Standard

Standard

Label

Label

Coloring

In the second row in the example below, the property keep-color is being used to retain the passed in color when the checkbox is not in a toggled state.

Coloring

Dense and dark

Dense
On a dark background

Sizes

Apart from the standard sizes below, you can define your own through the size property (last one is a custom size).

Standard sizes

Indeterminate state

In the example below, as soon as you click on the first checkbox it starts toggling between true/false. The second checkbox, on the other hand toggles between the three states (indeterminate/true/false) with help from toggle-indeterminate. You can optionally set the property indeterminate-value, otherwise the indeterminate value will be considered null.

Indeterminate state

Toggle order

By default, QCheckbox follows this chain when toggling: indeterminate -> checked -> unchecked. However, you can change this behavior through the toggle-order prop. This property determines the order of the states and can be tf (default) or ft (t stands for state of true/checked while f for state of false/unchecked).

Toggling order is:

  • if toggle-indeterminate is true, then: indet -> first state -> second state -> indet (and repeat)
  • otherwise (no toggle-indeterminate): indet -> first state -> second state -> first state -> second state -> …
Toggle order

Array model

Array as model

Custom model values

Custom model values

With QOptionGroup

TIP

You can also use QOptionGroup, which simplifies the usage when you have groups of checkboxes, like in example below.

Usage with QOptionGroup

With QItem

In the example below, we are rendering a <label> tag (notice tag="label") so the QCheckbox will respond to clicks on QItems to change toggle state.

With QItem

Disable

Disable

Native form submit

When dealing with a native form which has an action and a method (eg. when using Quasar with ASP.NET controllers), you need to specify the name property on QCheckbox, otherwise formData will not contain it (if it should) - all value are converted to string (native behaviour, so do not use Object values):

Native form

QCheckbox API

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