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## Checkbox
Un groupe d'options à choix multiples.
### Usage
Checkbox peut être utilisé seul pour switcher entre deux états.
:::demo Définissez `v-model` (variable liée) dans `el-checkbox` . La valeur par défaut est un `Boolean` pour une seule `checkbox` et devient `true` quand elle est sélectionnée. Le contenu à l'intérieur de la balise `el-checkbox` deviendra le label du bouton de la checkbox.
```html
< template >
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< div >
< el-checkbox v-model = "checked1" label = "Option 1" > < / el-checkbox >
< el-checkbox v-model = "checked2" label = "Option 2" > < / el-checkbox >
< / div >
< div >
< el-checkbox v-model = "checked3" label = "Option 1" size = "medium" > < / el-checkbox >
< el-checkbox v-model = "checked4" label = "Option 2" size = "medium" > < / el-checkbox >
< / div >
< div >
< el-checkbox v-model = "checked5" label = "Option 1" size = "small" > < / el-checkbox >
< el-checkbox v-model = "checked6" label = "Option 2" size = "small" > < / el-checkbox >
< / div >
< div >
< el-checkbox v-model = "checked7" label = "Option 1" size = "mini" > < / el-checkbox >
< el-checkbox v-model = "checked8" label = "Option 2" size = "mini" > < / el-checkbox >
< / div >
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< / template >
< script >
export default {
data() {
return {
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checked1: true,
checked2: false,
checked3: false,
checked4: false,
checked5: false,
checked6: false,
checked7: false,
checked8: false,
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};
}
};
< / script >
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<!--
< setup >
import { defineComponent, ref } from 'vue';
export default defineComponent({
setup() {
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const checked1 = ref(true);
const checked2 = ref(false);
const checked3 = ref(false);
const checked4 = ref(false);
const checked5 = ref(false);
const checked6 = ref(false);
const checked7 = ref(false);
const checked8 = ref(false);
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return {
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checked1,
checked2,
checked3,
checked4,
checked5,
checked6,
checked7,
checked8,
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};
},
});
< / setup >
-->
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```
:::
### Désactivation
La checkbox peut être désactivée.
:::demo Ajouter l'attribut `disabled` .
```html
< template >
< el-checkbox v-model = "checked1" disabled > Option< / el-checkbox >
< el-checkbox v-model = "checked2" disabled > Option< / el-checkbox >
< / template >
< script >
export default {
data() {
return {
checked1: false,
checked2: true
};
}
};
< / script >
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<!--
< setup >
import { defineComponent, ref } from 'vue';
export default defineComponent({
setup() {
const checked1 = ref(false);
const checked2 = ref(true);
return {
checked1,
checked2,
};
},
});
< / setup >
-->
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```
:::
### Checkbox groupées
Utile pour grouper des checkbox, indiquant si une option est sélectionnée en vérifiant la case en question.
:::demo L'élément `checkbox-group` peut gérer plusieurs checkbox d'un groupe en utilisant `v-model` , qui sera un `Array` . Dans l'élément `el-checkbox` , `label` est la valeur de la checkbox. S'il n'y a aucun contenu dans la balise, `label` sera également la description de la checkbox. `label` correspond aussi aux valeurs des éléments dans le tableau. Il est sélectionné si la valeur spécifiée existe dans le tableau, et vice-versa.
```html
< template >
< el-checkbox-group v-model = "checkList" >
< el-checkbox label = "Option A" > < / el-checkbox >
< el-checkbox label = "Option B" > < / el-checkbox >
< el-checkbox label = "Option C" > < / el-checkbox >
< el-checkbox label = "Désactivée" disabled > < / el-checkbox >
< el-checkbox label = "Sélectionnée et désactivée" disabled > < / el-checkbox >
< / el-checkbox-group >
< / template >
< script >
export default {
data () {
return {
checkList: ['selected and disabled','Option A']
};
}
};
< / script >
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<!--
< setup >
import { defineComponent, ref } from 'vue';
export default defineComponent({
setup() {
const checkList = ref(['selected and disabled','Option A']);
return {
checkList,
};
},
});
< / setup >
-->
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```
:::
### Indéterminée
La propriété `indeterminate` permet de réaliser un effet "Sélectionner tout".
:::demo
```html
< template >
< el-checkbox :indeterminate = "isIndeterminate" v-model = "checkAll" @change =" handleCheckAllChange " > Sélectionner tout</ el-checkbox >
< el-checkbox-group v-model = "checkedCities" @change =" handleCheckedCitiesChange " >
< el-checkbox v-for = "city in cities" :label = "city" :key = "city" > {{city}}< / el-checkbox >
< / el-checkbox-group >
< / template >
< script >
const cityOptions = ['Shanghai', 'Beijing', 'Guangzhou', 'Shenzhen'];
export default {
data() {
return {
checkAll: false,
checkedCities: ['Shanghai', 'Beijing'],
cities: cityOptions,
isIndeterminate: true
};
},
methods: {
handleCheckAllChange(val) {
this.checkedCities = val ? cityOptions : [];
this.isIndeterminate = false;
},
handleCheckedCitiesChange(value) {
let checkedCount = value.length;
this.checkAll = checkedCount === this.cities.length;
this.isIndeterminate = checkedCount > 0 & & checkedCount < this.cities.length ;
}
}
};
< / script >
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<!--
< setup >
import { defineComponent, reactive, toRefs } from 'vue';
const cityOptions = ['Shanghai', 'Beijing', 'Guangzhou', 'Shenzhen'];
export default defineComponent({
setup() {
const state = reactive({
checkAll: false,
checkedCities: ['Shanghai', 'Beijing'],
cities: cityOptions,
isIndeterminate: true,
});
const handleCheckAllChange = (val) => {
state.checkedCities = val ? cityOptions : [];
state.isIndeterminate = false;
};
const handleCheckedCitiesChange = (value) => {
const checkedCount = value.length;
state.checkAll = checkedCount === state.cities.length;
state.isIndeterminate = checkedCount > 0 & & checkedCount < state.cities.length ;
};
return {
...toRefs(state),
handleCheckAllChange,
handleCheckedCitiesChange,
};
},
});
< / setup >
-->
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```
:::
### Minimum / Maximum d'éléments sélectionnés
Les propriétés `min` et `max` permettent de limiter la quantité d'éléments sélectionnés.
:::demo
```html
< template >
< el-checkbox-group
v-model="checkedCities"
:min="1"
:max="2">
< el-checkbox v-for = "city in cities" :label = "city" :key = "city" > {{city}}< / el-checkbox >
< / el-checkbox-group >
< / template >
< script >
const cityOptions = ['Shanghai', 'Beijing', 'Guangzhou', 'Shenzhen'];
export default {
data() {
return {
checkedCities: ['Shanghai', 'Beijing'],
cities: cityOptions
};
}
};
< / script >
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<!--
< setup >
import { defineComponent, reactive, toRefs } from 'vue';
const cityOptions = ['Shanghai', 'Beijing', 'Guangzhou', 'Shenzhen'];
export default defineComponent({
setup() {
const state = reactive({
checkedCities: ['Shanghai', 'Beijing'],
cities: cityOptions,
});
return {
...toRefs(state),
};
},
});
< / setup >
-->
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```
:::
### Style bouton
Des checkbox avec une apparence de bouton.
:::demo Il vous suffit de changer `el-checkbox` en `el-checkbox-button` . Il existe aussi un attribut `size` .
```html
< template >
< div >
< el-checkbox-group v-model = "checkboxGroup1" >
< el-checkbox-button v-for = "city in cities" :label = "city" :key = "city" > {{city}}< / el-checkbox-button >
< / el-checkbox-group >
< / div >
< div style = "margin-top: 20px" >
< el-checkbox-group v-model = "checkboxGroup2" size = "medium" >
< el-checkbox-button v-for = "city in cities" :label = "city" :key = "city" > {{city}}< / el-checkbox-button >
< / el-checkbox-group >
< / div >
< div style = "margin-top: 20px" >
< el-checkbox-group v-model = "checkboxGroup3" size = "small" >
< el-checkbox-button v-for = "city in cities" :label = "city" :disabled = "city === 'Beijing'" :key = "city" > {{city}}< / el-checkbox-button >
< / el-checkbox-group >
< / div >
< div style = "margin-top: 20px" >
< el-checkbox-group v-model = "checkboxGroup4" size = "mini" disabled >
< el-checkbox-button v-for = "city in cities" :label = "city" :key = "city" > {{city}}< / el-checkbox-button >
< / el-checkbox-group >
< / div >
< / template >
< script >
const cityOptions = ['Shanghai', 'Beijing', 'Guangzhou', 'Shenzhen'];
export default {
data () {
return {
checkboxGroup1: ['Shanghai'],
checkboxGroup2: ['Shanghai'],
checkboxGroup3: ['Shanghai'],
checkboxGroup4: ['Shanghai'],
cities: cityOptions
};
}
}
< / script >
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<!--
< setup >
import { defineComponent, reactive, toRefs } from 'vue';
const cityOptions = ['Shanghai', 'Beijing', 'Guangzhou', 'Shenzhen'];
export default defineComponent({
setup() {
const state = reactive({
checkboxGroup1: ['Shanghai'],
checkboxGroup2: ['Shanghai'],
checkboxGroup3: ['Shanghai'],
checkboxGroup4: ['Shanghai'],
cities: cityOptions,
});
return {
...toRefs(state),
};
},
});
< / setup >
-->
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```
:::
### Bordures
:::demo L'attribut `border` ajoute une bordure aux checkbox.
```html
< template >
< div >
< el-checkbox v-model = "checked1" label = "Option1" border > < / el-checkbox >
< el-checkbox v-model = "checked2" label = "Option2" border > < / el-checkbox >
< / div >
< div style = "margin-top: 20px" >
< el-checkbox v-model = "checked3" label = "Option1" border size = "medium" > < / el-checkbox >
< el-checkbox v-model = "checked4" label = "Option2" border size = "medium" > < / el-checkbox >
< / div >
< div style = "margin-top: 20px" >
< el-checkbox-group v-model = "checkboxGroup1" size = "small" >
< el-checkbox label = "Option1" border > < / el-checkbox >
< el-checkbox label = "Option2" border disabled > < / el-checkbox >
< / el-checkbox-group >
< / div >
< div style = "margin-top: 20px" >
< el-checkbox-group v-model = "checkboxGroup2" size = "mini" disabled >
< el-checkbox label = "Option1" border > < / el-checkbox >
< el-checkbox label = "Option2" border > < / el-checkbox >
< / el-checkbox-group >
< / div >
< / template >
< script >
export default {
data () {
return {
checked1: true,
checked2: false,
checked3: false,
checked4: true,
checkboxGroup1: [],
checkboxGroup2: []
};
}
}
< / script >
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<!--
< setup >
import { defineComponent, reactive, toRefs } from 'vue';
export default defineComponent({
setup() {
const state = reactive({
checked1: true,
checked2: false,
checked3: false,
checked4: true,
checkboxGroup1: [],
checkboxGroup2: [],
});
return {
...toRefs(state),
};
},
});
< / setup >
-->
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```
:::
### Attributs Checkbox
| Attribut | Description | Type | Options | Défaut|
|---------- |-------- |---------- |------------- |-------- |
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| model-value / v-model | La valeur liée. | string / number / boolean | — | — |
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| label | Valeur de la checkbox quand utilisée dans un `checkbox-group` . | string / number / boolean / object | — | — |
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| true-label | Valeur de la checkbox si cochée. | string / number | — | — |
| false-label | Valeur de la checkbox si non cochée. | string / number | — | — |
| disabled | Désactive la checkbox. | boolean | — | false |
| border | Ajoute une bordure à la checkbox. | boolean | — | false |
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| size | taille de la checkbox | string | medium / small / mini | — |
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| name | Attribut 'name' natif. | string | — | — |
| checked | Si la checkbox est cochée. | boolean | — | false |
| indeterminate | Identique à `indeterminate` dans les checkbox natives. | boolean | — | false |
### Évènements Checkbox
| Nom | Description | Paramètres |
|---------- |-------- |---------- |
| change | Se déclenche quand la valeur change. | La nouvelle valeur |
### Attributs Checkbox-group
| Attribut | Description | Type | Options | Défaut|
|---------- |-------- |---------- |------------- |-------- |
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| model-value / v-model | La valeur liée. | array | — | — |
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|size | size of checkbox | string | medium / small / mini | — |
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| disabled | Si les checkbox imbriquées sont désactivées. | boolean | — | false |
| min | Nombre minimum de checkbox cochées. | number | — | — |
| max | Nombre maximum de checkbox cochées. | number | — | — |
|text-color | Couleur de police quand le bouton est actif. | string | — | #ffffff |
|fill | Couleur de la bordure et du fond quand le bouton est actif. | string | — | #409EFF |
### Évènements Checkbox-group
| Nom | Description | Paramètres |
|---------- |-------- |---------- |
| change | Se déclenche quand la valeur change. | La nouvelle valeur |
### Attributs Checkbox-button
| Attribut | Description | Type | Options | Défaut|
|---------- |-------- |---------- |------------- |-------- |
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| label | Valeur de la checkbox quand utilisée dans un `checkbox-group` | string / number / boolean / object | — | — |
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| true-label | Valeur de la checkbox si cochée. | string / number | — | — |
| false-label | Valeur de la checkbox si non cochée. | string / number | — | — |
| disabled | Si la checkbox est désactivée. | boolean | — | false |
| name | Attribut 'name' natif. | string | — | — |
| checked | Si la checkbox est cochée. | boolean | — | false |