javascript - How to set default value in bootstrap-select dropdown with Vue.js - Stack Overflow

Here is the dropdown HTML<div class="form-group"><select class="form-control&qu

Here is the dropdown HTML

<div class="form-group">
    <select class="form-control" id="edit-item_condition">
       <option data-tokens="1">Option 1</option>
       <option data-tokens="2">Option 2</option>
       <option data-tokens="3">Option 3</option>
       <option data-tokens="4">Option 4</option>
       <option data-tokens="5">Option 5</option>
    </select>
</div>

I'm trying to set default value that I fetch from DB

 const editItem = new Vue({
            el: "#editItem",
            data: {
                items: null,
                selectedItem: null,
            },
            methods: {
                set_dropdown_default(item) {
                    try {
                        this.selectedItem = item;
                        $('.edit-item_condition').selectpicker('val', parseInt(this.selectedItem.properties.condition));
                    }
                    catch (err) {
                        console.log(err);
                    }
                },

The this.selectedItem.properties.condition in my example is "2". Checked and proved in debugger. Nevertheless, the dropdown is not affected and shows "Option 1".

Here is the dropdown HTML

<div class="form-group">
    <select class="form-control" id="edit-item_condition">
       <option data-tokens="1">Option 1</option>
       <option data-tokens="2">Option 2</option>
       <option data-tokens="3">Option 3</option>
       <option data-tokens="4">Option 4</option>
       <option data-tokens="5">Option 5</option>
    </select>
</div>

I'm trying to set default value that I fetch from DB

 const editItem = new Vue({
            el: "#editItem",
            data: {
                items: null,
                selectedItem: null,
            },
            methods: {
                set_dropdown_default(item) {
                    try {
                        this.selectedItem = item;
                        $('.edit-item_condition').selectpicker('val', parseInt(this.selectedItem.properties.condition));
                    }
                    catch (err) {
                        console.log(err);
                    }
                },

The this.selectedItem.properties.condition in my example is "2". Checked and proved in debugger. Nevertheless, the dropdown is not affected and shows "Option 1".

Share Improve this question asked Feb 9, 2018 at 8:18 IgorMIgorM 1,3563 gold badges12 silver badges31 bronze badges
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1 Answer 1

Reset to default 4

You can bind the select tag via v-model with the needed option value, here is an example:

new Vue({
    el:"#app",
  data:{
    selected: 4
  }
})
<script src="https://cdn.jsdelivr/npm/[email protected]/dist/vue.min.js"></script>

<div id="app">
  <select v-model="selected">
    <option value="1">Frist</option>
    <option value="2">Second</option>
    <option value="3">Third</option>
    <option value="4">Fourth</option>
    
  </select>
  
  
  <p>Selected item: {{selected}}</p>
</div>

so in your example you could do

<select class="form-control" id="edit-item_condition" v-model="selectedItem.properties.condition">

Reference

发布者:admin,转转请注明出处:http://www.yc00.com/questions/1745407089a4626363.html

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