I have a checkbox component in Vue:
<template>
<div class="checkbox">
<input class="checkbox-input" name="input" type="checkbox" v-model="checkbox">
</div>
</template>
<script>
export default {
data(){
return {
checkbox: false
};
},
};
</script>
So in the parent component I want to control these checkbox. So here is my parent component:
<div class="card">
<div class="card-header">
<CheckBox />
</div>
<div class="card-body" v-for="item in cart" :key="item.product.id">
<div class="checkbox-area">
<CheckBox />
</div>
</div>
So checkbox in card-body can be added when user clicks to add. So if a user clicks 3 times, 3 checkbox are being added inside of card-body. What I am trying to achieve is, as you see in card-header there is another checkbox, and when this checkbox is clicked, I want to check all the checkboxes inside card-body, and when it is unchecked in card-header, I want to unchcecked everything inside card-body.
So do you have any idea how to achieve this?
Thanks...
You can try like this :
Vue.component('checkbox', {
template: `
<div class="checkbox">
<input class="checkbox-input" name="input" type="checkbox" @change="getCheck" v-model="value">
</div>
`,
props: {
checked: {
type: Boolean,
default: false
}
},
data(){
return {
value: this.checked
};
},
methods: {
getCheck() {
this.$emit("set-checked", this.value)
}
},
watch: {
checked(){
this.value = this.checked
}
}
})
new Vue({
el: '#demo',
data(){
return {
all: false,
cart: [
{id: 1, check: false},
{id: 2, check: false},
{id: 3, check: true},
{id: 4, check: false}
]
};
},
watch: {
cart() {
this.cart.find(c => c.check === false) ? this.all = false : this.all = true
}
},
methods: {
checkAll(val) {
this.all = val
this.cart = this.cart.map(c => {
c.check = val
return c
})
},
checkItem(id) {
this.cart = this.cart.map(c => {
if(c.id === id) {
c.check = !c.check
}
return c
})
}
}
})<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="demo">
<div class="card">
<div class="card-header">
<p>All</p>
<checkbox :checked="all" @set-checked="checkAll" />
</div>
<br/>
<div class="card-body" v-for="item in cart" :key="item.id">
<div class="checkbox-area">
<checkbox :checked="item.check" @set-checked="checkItem(item.id)" />
</div>
</div>
</div>
</div>First of all you need to add some props to your Component. than a wachter to emit a sync when the Value of the checkbox changes.
<template>
<div class="checkbox">
<input class="checkbox-input" name="input" type="checkbox" v-model="value">
</div>
</template>
<script>
export default {
props: {
checked: {
type: Boolean,
default: false
}
}
data(){
return {
value: this.checked
};
},
watch: {
value(){
this.$emit("update:checked", this.value)
}
}
};
</script>
on the cart you need to watch for theses changes an than you can check/uncheck all the items.
<template>
<div class="card">
<div class="card-header">
<CheckBox :checked.sync="global"/>
</div>
<div class="card-body" v-for="item in cart" :key="item.product.id">
<div class="checkbox-area">
<CheckBox :checked.sync="item"/>
</div>
</div>
</div>
</template>
<script>
export default {
data(){
return {
global: false,
cart: [
false,
false,
false
]
};
},
watch: {
global(){
for (let i = 0; i < this.cart.length; i++) {
this.chart[i] = this.global
}
}
}
};
</script>
I have not tested this code, but this should work...