How to add the indeterminate state in the checkbox in Bootstrap VueJS?

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To add the indeterminate state in the checkbox using BootstrapVue.We are going to use the b-form-checkbox component to show the checkbox. To add the indeterminate state we are going to use the indeterminate prop.

Today I am going to show you How you add the indeterminate state in the checkbox using BootstrapVue in VueJS?

Table of contains

  • Setup the Vue.js
  • Install the Bootstrap and BootstrapVue
  • Create FirstComponent.vue and import it into App.js
  • Add an indeterminate state in a checkbox

Let’s start today’s tutorial How do I add the indeterminate state in the checkbox using BootstrapVue in VueJS?

Setup the Vue.js

First, we have to install the Vue project, I had installed the vueJS in my system. If you haven’t installed or have any problem with installation you can follow this article, which will show you step by step process of installation.

How to Install the VueJS project?

Install the Bootstrap and BootstrapVue

First, we have to install the Vue project, I had installed the vueJS in my system. If you haven’t installed or have any problem with installation you can follow this article, which will show you step by step process of installation. In that article, I had also show you how to install BootstrapVue in your vue.js project step by step.

How to install or configure vue-bootstrap in VueJS?

Create FirstComponent.vue and import it into App.js

Create the new component in the src/components/ components folder. the component name is FirstComponent.vue and imported into the App.js file:

App.js

<template>
  <div id="app">
    <FirstComponent />
  </div>
</template>

<script>
import FirstComponent from "./components/FirstComponent.vue";
export default {
  name: "App",
  components: {
    FirstComponent,
  },
};
</script>

Add an indeterminate state in the checkbox

To add the checkbox we are going to use the form checkbox <b-form-checkbox> component. these components <b-form-checkbox-group> and <b-form-checkbox> use the bootstrap custom checkbox input to replace the browser default checkbox input.so it is a solid replacement for the default checkbox input.

Normally in checkbox have only two states that is checked and unchecked. Visually, there are three states a checkbox can be in: checked, unchecked, or indeterminate.

The indeterminate state is only visual. The checkbox is still either checked or unchecked as a value. To visual the indeterminate state in <b-form-checkbox> we are going to use the indeterminate prop.The default value of indeterminate false. Let’s see the code example:

FirstComponent.js

<template>
  <div id="app">
  <h1>Welcome to sortoutcode.com</h1>
    <b-form-checkbox v-model="checked" :indeterminate.sync="indeterminate">
      This is sortoutcode.com
    </b-form-checkbox>

    <div class="mt-3">
      Checked value: <strong>{{ checked }}</strong><br>
      Indeterminate value: <strong>{{ indeterminate }}</strong>
    </div>

    <b-button @click="resetIndeterminate">Reset Indeterminate State</b-button>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        checked: true,
        indeterminate: true
      }
    },
    methods: {
      resetIndeterminate() {
        this.indeterminate = !this.indeterminate
      }
    }
  }
</script>

For now, let’s check the output.

bootstrap vue checkbox indeterminate state

All the best 👍.

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