我正在试图弄清楚如何将点击的项目的值传递到另一个组件
请参阅codepen:https://codepen.io/anon/pen/zRXBNY
假设我们有一个循环(this迭代器组件),它显示了对象items
的所有项目
<v-data-iterator
:items="items"
hide-actions
class="ma-4"
>
<v-flex
slot="item"
slot-scope="props"
xs12 sm6 md4 lg3
>
<v-card @contextmenu="show" class="ma-3 elevation-4">
<v-card-title>
<h4>{{ props.item.name }}</h4>
</v-card-title>
</v-card>
</v-flex>
</v-data-iterator>
我们在同一个.vue组件中也有this“menu”组件:
<v-menu
absolute
offset-y
:position-x="x"
:position-y="y"
v-model="showMenu"
>
<v-list>
<p class="white ma-3">menu for item: [TITLE]</p>
<v-list-tile
v-for="item in menuItems"
:key="item.title" @click=""
>
<v-list-tile-title>
{{ item.title }}
</v-list-tile-title>
</v-list-tile>
<v-text-field
class="ma-3"
label="rename">
</v-text-field>
</v-list>
</v-menu>
我们如何触发菜单组件并传递其中特定项的数据(以便我们可以使用它)?作为一个例子,我把这个menu for item: [TITLE]
段落在那里,我不明白我们如何传递点击项目的标题?
这对我来说似乎有些混乱(我对Vuetify不是很熟悉),但我想到的第一个解决方案是将item
对象传递给处理程序。所以你的代码如下:
<v-card @contextmenu="show($event, props.item)" class="ma-3 elevation-4"></v-card>
然后,一旦事件被触发并调用处理函数,您就可以存储您单击的项目:
show (e, item) {
this.selectedItem = item;
e.preventDefault()
// ...
现在,您可以使用模型组件中的项目:
<v-list>
<p class="white ma-3">
menu for item: {{selectedItem.name}}
</p>
//...
完整演示:
new Vue({
el: '#app',
methods: {
show (e, item) {
this.selectedItem = item;
e.preventDefault()
this.showMenu = false
this.x = e.clientX
this.y = e.clientY
this.$nextTick(() => {
this.showMenu = true
})
}
},
data: () => ({
x: 0,
y: 0,
selectedItem: {},
showMenu: false,
menuItems: [
{ title: 'copy' },
{ title: 'paste' },
{ title: 'delete' }
],
items: [
{
value: false,
name: 'Frozen Yogurt'
},
{
value: false,
name: 'Ice cream sandwich'
},
{
value: false,
name: 'Eclair'
},
{
value: false,
name: 'Cupcake'
}
]
})
})
<link href="https://unpkg.com/vuetify/dist/vuetify.min.css" rel="stylesheet"/>
<script src="https://unpkg.com/vue/dist/vue.js"></script>
<script src="https://unpkg.com/vuetify/dist/vuetify.min.js"></script>
<div id="app" >
<v-app id="inner" class="grey lighten-3">
<h1 class="ma-2 ml-4">right click on an item to trigger menu</h1>
<!-- ITEMS ON THE PAGE -->
<v-data-iterator
:items="items"
hide-actions
class="ma-4"
>
<v-flex
slot="item"
slot-scope="props"
xs12 sm6 md4 lg3
>
<v-card @contextmenu="show($event, props.item)" class="ma-3 elevation-4">
<v-card-title>
<h4>{{ props.item.name }}</h4>
</v-card-title>
</v-card>
</v-flex>
</v-data-iterator>
<!-- MENU COMPONENT -->
<v-menu
absolute
offset-y
:position-x="x"
:position-y="y"
v-model="showMenu"
>
<v-list>
<p class="white ma-3">menu for item: {{selectedItem.name}}</p>
<v-list-tile
v-for="item in menuItems"
:key="item.title" @click=""
>
<v-list-tile-title>
{{ item.title }}
</v-list-tile-title>
</v-list-tile>
<v-text-field
class="ma-3"
label="rename">
</v-text-field>
</v-list>
</v-menu>
</v-app>
</div>