我正在使用VueJS {{3}},我需要从另一个模板打开一个对话框 - 它作为组件模板导入。单击 App.vue 中的 菜单按钮后,应打开模态。 这是我的设置:
main.js
import Modal from './components/Modal.vue'
Vue.component('modal', Modal)
Modal.vue模板:
<template>
<v-layout row justify-center>
<v-btn color="primary" dark @click.native.stop="dialog = true">Open Dialog</v-btn>
<v-dialog v-model="dialog" max-width="290">
<v-card>
<v-card-title class="headline">Use Google's location service?</v-card-title>
<v-card-text>Let Google help apps determine location. This means sending anonymous location data to Google, even when no apps are running.</v-card-text>
<v-card-actions>
<v-spacer></v-spacer>
<v-btn color="green darken-1" flat="flat" @click.native="dialog = false">Disagree</v-btn>
<v-btn color="green darken-1" flat="flat" @click.native="dialog = false">Agree</v-btn>
</v-card-actions>
</v-card>
</v-dialog>
</v-layout>
</template>
<script>
export default {
data () {
return {
dialog: false
}
}
}
</script>
如何打开对话框?
答案 0 :(得分:38)
当我第一次回答这个问题时,我把答案称为“解决方法”,因为当时感觉并不完全“正确”,而且我是Vue.js的新手。我想使用 v-model 指令打开或关闭对话框,但我无法到达那里。一段时间后,我发现how to do this in the docs,使用输入事件和值属性,这就是我认为应该在没有事件总线的情况下完成的。
父组件:
<template>
<v-dialog v-model="show" max-width="500px">
<v-card>
<v-card-actions>
<v-btn color="primary" flat @click.stop="show=false">Close</v-btn>
</v-card-actions>
</v-card>
</v-dialog>
</template>
<script>
export default {
props: {
value: Boolean
},
computed: {
show: {
get () {
return this.value
},
set (value) {
this.$emit('input', value)
}
}
}
}
</script>
子组件(ScheduleForm):
<template>
<v-btn color="accent" large @click.stop="showScheduleForm=true">
<ScheduleForm :visible="showScheduleForm" @close="showScheduleForm=false" />
</template>
<script>
import ScheduleForm from '~/components/ScheduleForm'
export default {
data () {
return {
showScheduleForm: false
}
},
components: {
ScheduleForm
}
}
</script>
我能够在不需要全局事件总线的情况下解决这个问题。
我使用了带有getter和setter的计算属性。由于Vue警告你直接改变父属性,因此在setter中我只是向父节点发出了一个事件。
以下是代码:
父组件:
<template>
<v-dialog v-model="show" max-width="500px">
<v-card>
<v-card-actions>
<v-btn color="primary" flat @click.stop="show=false">Close</v-btn>
</v-card-actions>
</v-card>
</v-dialog>
</template>
<script>
export default {
props: ['visible'],
computed: {
show: {
get () {
return this.visible
},
set (value) {
if (!value) {
this.$emit('close')
}
}
}
}
}
</script>
子组件(ScheduleForm):
{{1}}
答案 1 :(得分:9)
您可以使用自定义事件并使用event bus for non parent-child communication打开对话框。
如果您的应用程序变得更复杂,我建议您使用Vuex for state management。
活动总线解决方案:
在 main.js 或新文件中创建并导出新的Vue实例:
export const bus = new Vue()
在 app.vue 中导入bus
并发出事件:
<template>
<div>
<button @click.prevent="openMyDialog()">my button</button>
</div>
</template>
<script>
import {bus} from '../main' // import the bus from main.js or new file
export default {
methods: {
openMyDialog () {
bus.$emit('dialog', true) // emit the event to the bus
}
}
}
</script>
在 modal.vue 中也导入总线并在创建的钩子中侦听事件:
<script>
import {bus} from '../main'
export default {
created () {
var vm = this
bus.$on('dialog', function (value) {
vm.dialog = value
})
}
}
</script>
答案 2 :(得分:7)
有很多方法可以做到这一点,比如Vuex,Event Bus,Props,你可以用它来管理模态是否必须打开或关闭。我将使用
.sync
修饰符向你展示我最喜欢的方式:< / p>
首先,我将简化您的问题(代码部分)
父组件
<template>
<div>
<button @click="dialog=true">Open Dialog</button>
<Child :dialog.sync="dialog" />
</div>
</template>
<script>
import Child from './Child.vue'
export default {
components: {
Child
},
data: {
return {
dialog: false
}
}
}
</script>
子(对话)组件
<template>
<v-layout row justify-center>
<v-dialog v-model="dialog" persistent max-width="290">
<v-card>
<v-card-title class="headline">Use Google's location service?</v-card-title>
<v-card-text>Let Google help apps determine location. This means sending anonymous location data to Google, even when no apps are running.</v-card-text>
<v-card-actions>
<v-spacer></v-spacer>
<v-btn color="green darken-1" flat @click.native="close">Close</v-btn>
</v-card-actions>
</v-card>
</v-dialog>
</v-layout>
</template>
<script>
export default {
props: {
dialog: {
default: false
}
},
methods: {
close() {
this.$emit('update:dialog', false)
}
}
}
</script>
答案 3 :(得分:2)
The most simpler way I found to do it is:
in data() of component, return a attribute, let's say, dialog.
When you include a component, you can set a reference to your component tag. E.g.:
import Edit from '../payment/edit.vue';
<edit ref="edit_reference"></edit>
Then, inside my component, I have set a method:
open: function () {
var vm = this;
vm.dialog = true;
}
Finally, I can call it from parent, using:
editar(item)
{
var vm = this;
vm.$refs.edit_reference.open();
}
答案 4 :(得分:2)
将value
道具作为value
传递到v-dialog
组件,并在子对话框中随时关闭input
事件:
//CustomDialog.vue
<v-dialog :value="value" @input="$emit('input')">
<v-btn color="red" @click.native="$emit('input')">Close</v-btn>
</v-dialog>
...
props:['value']
并将v模型添加到您的父母
//Parent.vue
<custom-dialog v-model="dialog">
因此,没有自定义事件总线,没有data
,没有watch
,没有computed
。
答案 5 :(得分:1)
在App.vue
template
添加此内容
<modal></model>
它会使用Modal.vue
和v-btn
v-dialog
模板
现在,当你点击该模式时,将会有一个button
- Open Dialog
。
答案 6 :(得分:0)
我更喜欢使用这个:
DialogConfirm.vue
<template>
<v-dialog :value="visible" max-width="450">
<v-card>
<v-card-title v-text="title" />
<v-card-text v-text="message" />
<v-card-actions v-if="visible">
<template v-for="action in value">
<v-spacer :key="action.label" v-if="typeof action == 'string'" />
<v-btn
v-else
text
:key="action.label"
v-text="action.label"
@click="doAction(action.action)"
:color="action.color"
/>
</template>
</v-card-actions>
</v-card>
</v-dialog>
</template>
<script lang="ts">
import Vue from 'vue'
import Component from 'vue-class-component';
import { Prop, Watch } from 'vue-property-decorator';
@Component
export default class DialogConfirm extends Vue {
@Prop({ type: String, default: "Confirm" })
title: string
@Prop({ type: String, default: "Are you sure?" })
message: string
@Prop({ type: Array, default: undefined })
value: { label: string, action: () => boolean, color: string }[]
get visible() {
return Array.isArray(this.value) && this.value.length > 0
}
doAction(action: () => boolean) {
if ('undefined' == typeof action || action() !== false) {
this.$emit('input', null)
}
}
}
</script>
用法示例
/** Disable AP Mode */
setApMode(enable: boolean) {
const action = () => {
Api.get('wifi', {
params: {
ap: enable
}
}).then(response => this.$store.dispatch('status'))
}
if (enable == true) {
// No confirmation
return action();
}
this.dialogTitle = 'Are you sure?'
this.dialogMessage = "you may lost connection to this device.";
this.dialogActions = [
{
label: 'Cancel',
color: 'success'
},
'spacer',
{
label: "OK, Disable it",
color: "error",
action
}
]
}
答案 7 :(得分:0)
methods: {
openDialog(e) {
this.dialog = true;
}
},
这个对我有用