删除数据表Vuetify上的选定行
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我在vuetify中使用数据表。我正在使用v-checkbox。我想使用按钮单击从v-checkbox中删除所选项目。我在数据表的底部有删除按钮。因此，当用户单击删除按钮时，应删除数据表中的选定行。有什么想法怎么做？
<script>
export default {
data () {
return {
props:[],
selected: [],
headers: [
{
text: 'Name',
align: 'left',
sortable: true,
value: 'name'
},
{ text: 'Organisation', value: 'organisation' },
{ text: 'Supplier', value: 'supplier' },
{ text: 'Created By', value: 'createdBy' },
{ text: 'Updated By', value: 'updatedBy' },
],
projects: [
{
name: 'test',
organisation: 'test',
supplier: 'test',
createdBy: 'test',
updatedBy: 'test'
},
{
name: 'Ice cream sandwich',
calories: 237,
fat: 9.0,
carbs: 37,
protein: 4.3,
iron: '1%'
},
{
name: 'Eclair',
calories: 262,
fat: 16.0,
carbs: 23,
protein: 6.0,
iron: '7%'
},
{
name: 'Cupcake',
calories: 305,
fat: 3.7,
carbs: 67,
protein: 4.3,
iron: '8%'
},
{
name: 'Gingerbread',
calories: 356,
fat: 16.0,
carbs: 49,
protein: 3.9,
iron: '16%'
},
{
name: 'Jelly bean',
calories: 375,
fat: 0.0,
carbs: 94,
protein: 0.0,
iron: '0%'
},
{
name: 'Lollipop',
calories: 392,
fat: 0.2,
carbs: 98,
protein: 0,
iron: '2%'
},
{
name: 'Honeycomb',
calories: 408,
fat: 3.2,
carbs: 87,
protein: 6.5,
iron: '45%'
},
{
name: 'Donut',
calories: 452,
fat: 25.0,
carbs: 51,
protein: 4.9,
iron: '22%'
},
{
name: 'KitKat',
calories: 518,
fat: 26.0,
carbs: 65,
protein: 7,
iron: '6%'
}
]
}
},
methods: {
deleteProject
{
// delete funtion here
},
liveProject()
{
alert("live");
},
closeProject()
{
alert("close");
},
}
}
</script><template>
<div>
<v-toolbar flat color="white">
<v-toolbar-title>Manage Projects</v-toolbar-title>
{{ props }}
</v-toolbar>
<v-data-table
v-model="props"
:headers="headers"
:items="projects"
item-key="name"
select-all
class="elevation-1"
>
<template slot="items" slot-scope="props">
<td>
<v-checkbox
v-model="props.selected"
primary
hide-details
></v-checkbox>
</td>
<td>{{ props.item.name }}</td>
<td class="text-xs-left">{{ props.item.organisation }}</td>
<td class="text-xs-left">{{ props.item.supplier }}</td>
<td class="text-xs-left">{{ props.item.createdBy }}</td>
<td class="text-xs-left">{{ props.item.updatedBy }}</td>
</template>
</v-data-table>
<div class="text-xs-center pt-2">
<v-btn color="primary" @click="deleteProject">Delete</v-btn>
<v-btn color="primary" @click="liveProject">Make Live</v-btn>
<v-btn color="primary" @click="closeProject">Close</v-btn>
</div>
</div>
</template>答案
以下是从数据表中删除所选行的代码。
请查看以下示例。
模板=>
<div id="app">
<v-app id="inspire">
<v-data-table
v-model="selected"
:headers="headers"
:items="desserts"
item-key="name"
select-all
class="elevation-1"
>
<template slot="items" slot-scope="props">
<td>
<v-checkbox
v-model="props.selected"
primary
hide-details
></v-checkbox>
</td>
<td>{{ props.item.name }}</td>
<td class="text-xs-right">{{ props.item.calories }}</td>
<td class="text-xs-right">{{ props.item.fat }}</td>
<td class="text-xs-right">{{ props.item.carbs }}</td>
<td class="text-xs-right">{{ props.item.protein }}</td>
<td class="text-xs-right">{{ props.item.iron }}</td>
</template>
</v-data-table>
<div>
<v-btn color="primary" @click="deleteItem">Delete</v-btn>
</div>
</v-app>
</div>
脚本=>
new Vue({
el: '#app',
data () {
return {
selected: [],
headers: [
{
text: 'Dessert (100g serving)',
align: 'left',
sortable: false,
value: 'name'
},
{ text: 'Calories', value: 'calories' },
{ text: 'Fat (g)', value: 'fat' },
{ text: 'Carbs (g)', value: 'carbs' },
{ text: 'Protein (g)', value: 'protein' },
{ text: 'Iron (%)', value: 'iron' }
],
desserts: [
{
name: 'Frozen Yogurt',
calories: 159,
fat: 6.0,
carbs: 24,
protein: 4.0,
iron: '1%'
},
{
name: 'Ice cream sandwich',
calories: 237,
fat: 9.0,
carbs: 37,
protein: 4.3,
iron: '1%'
},
{
name: 'Eclair',
calories: 262,
fat: 16.0,
carbs: 23,
protein: 6.0,
iron: '7%'
},
{
name: 'Cupcake',
calories: 305,
fat: 3.7,
carbs: 67,
protein: 4.3,
iron: '8%'
},
{
name: 'Gingerbread',
calories: 356,
fat: 16.0,
carbs: 49,
protein: 3.9,
iron: '16%'
},
{
name: 'Jelly bean',
calories: 375,
fat: 0.0,
carbs: 94,
protein: 0.0,
iron: '0%'
},
{
name: 'Lollipop',
calories: 392,
fat: 0.2,
carbs: 98,
protein: 0,
iron: '2%'
},
{
name: 'Honeycomb',
calories: 408,
fat: 3.2,
carbs: 87,
protein: 6.5,
iron: '45%'
},
{
name: 'Donut',
calories: 452,
fat: 25.0,
carbs: 51,
protein: 4.9,
iron: '22%'
},
{
name: 'KitKat',
calories: 518,
fat: 26.0,
carbs: 65,
protein: 7,
iron: '6%'
}
]
}
},
methods: {
deleteItem () {
if(confirm('Are you sure you want to delete this item?')){
for(var i = 0; i <this.selected.length; i++){
const index = this.desserts.indexOf(this.selected[i]);
this.desserts.splice(index, 1);
}
}
}
}
})
另一答案
deleteProject(item_name){
this.projects.splice(this.projects.findIndex(e=> e.name == item_name),1)
}
// JS splice method for remove items from an array.
// JS findIndex method for find the index of the element which you want to delete.
另一答案
昨天我有一个类似的问题，但有jquery。现在使用vuejs，我猜测模型绑定实际上更简单，因此所有选定的行都将被推送到数据属性。然后点击删除，循环浏览所有选定的ID或密钥，然后将其从商店中删除，或者调用后端api或您在此处完成的数据属性。
data: () => ({
selected: [],
projects: {/*...content in here */},
});
methods: {
delete() {
this.selected.forEach(function(project) { // project here is just the index of the selected in the projects array
projects.splice(project, 1);
});
this.selected = []; // don't forget to empty selected
}
}
另一答案
如果Data table绑定到store的对象数组：
我们还可以使用map来获取商店数组中对象的index，并使用以下命令将其删除：
突变
REMOVE_OBJECT_FROM_ARRAY: (state, payload) => {
let i = state.someArrayofObjects.map(item => item.id).indexOf(payload.id);
state.someArrayofObjects.splice(i, 1);
}
在这里，id是有效载荷传递到MUTATION的id，我们也可以只通过id作为整个payload。在这种情况下，我们可以做类似的事情：
REMOVE_OBJECT_FROM_ARRAY: (state, payload) => {
let i = state.someArrayofObjects.map(item => item.id).indexOf(payload);
state.someArrayofObjects.splice(i, 1);
}
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