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227 lines
8.0 KiB
Markdown
227 lines
8.0 KiB
Markdown
## Switch
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Switch is used for switching between two opposing states.
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### Basic usage
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:::demo Bind `v-model` to a `Boolean` typed variable. The `active-color` and `inactive-color` attribute decides the background color in two states.
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```html
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<el-switch v-model="value1"> </el-switch>
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<el-switch v-model="value2" active-color="#13ce66" inactive-color="#ff4949">
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</el-switch>
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<script>
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export default {
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data() {
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return {
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value1: true,
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value2: true,
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}
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},
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}
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</script>
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```
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:::
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### Text description
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:::demo You can add `active-text` and `inactive-text` attribute to show texts.
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```html
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<el-switch
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v-model="value1"
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active-text="Pay by month"
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inactive-text="Pay by year"
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>
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</el-switch>
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<el-switch
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style="display: block"
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v-model="value2"
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active-color="#13ce66"
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inactive-color="#ff4949"
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active-text="Pay by month"
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inactive-text="Pay by year"
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>
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</el-switch>
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<script>
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export default {
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data() {
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return {
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value1: true,
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value2: true,
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}
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},
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}
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</script>
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```
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:::
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### Extended value types
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:::demo You can set `active-value` and `inactive-value` attributes. They both receive a `Boolean`, `String` or `Number` typed value.
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```html
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<el-tooltip :content="'Switch value: ' + value" placement="top">
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<el-switch
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v-model="value"
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active-color="#13ce66"
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inactive-color="#ff4949"
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active-value="100"
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inactive-value="0"
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>
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</el-switch>
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</el-tooltip>
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<script>
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export default {
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data() {
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return {
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value: '100',
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}
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},
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}
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</script>
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```
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:::
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### Disabled
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:::demo Adding the `disabled` attribute disables Switch.
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```html
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<el-switch v-model="value1" disabled> </el-switch>
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<el-switch v-model="value2" disabled> </el-switch>
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<script>
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export default {
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data() {
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return {
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value1: true,
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value2: false,
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}
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},
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}
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</script>
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```
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:::
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### Loading
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:::demo Setting the `loading` attribute to `true` indicates a loading state on the Switch.
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```html
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<el-switch v-model="value1" loading> </el-switch>
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<el-switch v-model="value2" loading> </el-switch>
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<script>
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export default {
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data() {
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return {
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value1: true,
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value2: false,
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}
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},
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}
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</script>
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```
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:::
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### prevent switching
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:::demo set the `beforeChange` property, If `false` is returned or a `Promise` is returned and then is rejected, will stop switching.
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```html
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<el-switch v-model="value1" :loading="loading1" :beforeChange="beforeChange1">
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</el-switch>
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<el-switch v-model="value2" :loading="loading2" :beforeChange="beforeChange2">
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</el-switch>
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<script>
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import { reactive, toRefs } from 'vue'
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import { ElMessage } from 'element-plus'
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export default {
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setup() {
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const status1 = reactive({
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value1: false,
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loading1: false,
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})
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const beforeChange1 = () => {
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status1.loading1 = true
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return new Promise(resolve => {
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setTimeout(() => {
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status1.loading1 = false
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ElMessage.success('switch success')
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return resolve(true)
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}, 1000)
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})
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}
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const status2 = reactive({
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value2: false,
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loading2: false,
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})
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const beforeChange2 = () => {
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status2.loading2 = true
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return new Promise((resolve, reject) => {
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setTimeout(() => {
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status2.loading2 = false
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ElMessage.error('switch failed')
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return reject(new Error('error'))
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}, 1000)
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})
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}
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return {
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...toRefs(status1),
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...toRefs(status2),
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beforeChange1,
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beforeChange2,
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}
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},
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}
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</script>
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```
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:::
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### Attributes
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| Attribute | Description | Type | Accepted Values | Default |
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| ------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------- | --------------- | ------- |
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| model-value / v-model | binding value, it should be equivalent to either `active-value` or `inactive-value`, by default it's `boolean` type | boolean / string / number | — | — |
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| disabled | whether Switch is disabled | boolean | — | false |
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| loading | whether Switch is in loading state | boolean | — | false |
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| width | width of Switch | number | — | 40 |
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| active-icon-class | class name of the icon displayed when in `on` state, overrides `active-text` | string | — | — |
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| inactive-icon-class | class name of the icon displayed when in `off` state, overrides `inactive-text` | string | — | — |
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| active-text | text displayed when in `on` state | string | — | — |
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| inactive-text | text displayed when in `off` state | string | — | — |
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| active-value | switch value when in `on` state | boolean / string / number | — | true |
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| inactive-value | switch value when in `off` state | boolean / string / number | — | false |
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| active-color | background color when in `on` state | string | — | #409EFF |
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| inactive-color | background color when in `off` state | string | — | #C0CCDA |
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| border-color | border color of the switch | string | — | — |
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| name | input name of Switch | string | — | — |
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| validate-event | whether to trigger form validation | boolean | — | true |
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| before-change | before-change hook before the switch state changes. If `false` is returned or a `Promise` is returned and then is rejected, will stop switching | function | — | — |
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### Events
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| Event Name | Description | Parameters |
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| ---------- | --------------------------- | -------------------- |
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| change | triggers when value changes | value after changing |
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### Methods
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| Method | Description | Parameters |
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| ------ | -------------------------- | ---------- |
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| focus | focus the Switch component | — |
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