如何禁用选择选项上的值？ (vue.js 2)

Question

My component is like this :

<div id="demo">
  <div>
    <select class="form-control" v-model="selected" required>
      <option v-for="option in options" v-bind:value="option.id">{{ option.name }}</option>
    </select>
    {{selected}}
  </div>
</div>

var demo = new Vue({
  ...
  data() {
    return {
      selected: '',
      options: [{
        id: '',
        name: 'Select Category'
      }]
    };
  },
  ...
})

See full code and demo here : https://fiddle.jshell.net/oscar11/stvct9er/5/

I want disable "Select Category". So "Select category" disabled. User can not select it. User can only choose a value other than "Select Category".

How can I do it?

Answer 1

You should add option directly in select tag.

<select class="form-control" v-model="selected" required>
  <option value="" disabled>Select a category</option>
  <option v-for="option in options" v-bind:value="option.id">{{ option.name }}</option>
</select>

Also, remove it from data function.

data() {
  return {
    selected: '',
    options: []
  };
}

I don't recommend you to add this option in the options array, because it is a placeholder attribute for your select .

Answer 2

Other option could be to disable that element using a binding

<option v-for="option in options" 
        :disabled="!option.id"
        v-bind:value="option.id">
    {{ option.name }}
</option>