How can the "not selected" option be disabled in a Vue Select component?

I have implemented a select box in the following manner: JS:

Vue.component("v-select", VueSelect.VueSelect);

new Vue({
  el: "#app",
  data: {
    options: [
      { countryCode: "AU", countryName: "Australia" },
      { countryCode: "CA", countryName: "Canada" },
      { countryCode: "CN", countryName: "China" },
      { countryCode: "DE", countryName: "Germany" },
      { countryCode: "JP", countryName: "Japan" },
      { countryCode: "MX", countryName: "Mexico" },
      { countryCode: "CH", countryName: "Switzerland" },
      { countryCode: "US", countryName: "United States" }
    ],
  selectedCountry = null;
  someAnotherModel = null; // model for parent select box. country select box is depends on it.
  },
});

Html:

<v-select label="countryName" :options="options" v-model="selectedCountry"></v-select>

In a watcher of another select box, I do the following:

If (this.someAnotherModel == null) {
   this.selectedCountry = null; 
}

Could you assist me in correcting my code? My main objectives are:

  1. To clear dynamically selected value and empty the select box, setting the model to null does not reflect the change in the select box.
  2. I also have a query regarding deselecting an option by clicking on it, as mentioned in the documentation (). I want to disable this behavior and automatically select an option if the options array is not null.

Thank you for your assistance.

Answer №1

If you're looking to limit the clearable option, consider using:

<v-select :clearable="false" />

Refer to this discussion on the project's GitHub page

Answer №2

To prevent the clear-selection button from being displayed, you can apply this CSS:

.dropdown-toggle .clear {
  display: none;
}

Unfortunately, there is no built-in option to disable this button in the widget.

In order to address your initial concern, it would be helpful if you could create a fiddle showcasing the issue. In the example snippet provided below, clearing the modeled value will result in the selection being cleared as well. The code is set up to automatically clear after 5 seconds, so please make a selection and wait for the effect.

Vue.component("v-select", VueSelect.VueSelect);

const v = new Vue({
  el: "#app",
  data: {
    options: [
      { countryCode: "AU", countryName: "Australia" },
      { countryCode: "CA", countryName: "Canada" },
      { countryCode: "CN", countryName: "China" },
      { countryCode: "DE", countryName: "Germany" },
      { countryCode: "JP", countryName: "Japan" },
      { countryCode: "MX", countryName: "Mexico" },
      { countryCode: "CH", countryName: "Switzerland" },
      { countryCode: "US", countryName: "United States" }
    ],
    selectedCountry: null
  }
});

setTimeout(() => {
  v.selectedCountry = null;
}, 5000);
body {
  font-family: 'Source Sans Pro', 'Helvetica Neue', Arial, sans-serif;
  text-rendering: optimizelegibility;
  -moz-osx-font-smoothing: grayscale;
  -moz-text-size-adjust: none;
}

.dropdown-toggle .clear {
  display: none;
}

h1,.muted {
  color: #2c3e5099;
}

h1 {
  font-size: 26px;
  font-weight: 600;
}

#app {
  max-width: 30em;
  margin: 1em auto;
}
<script src="//unpkg.com/vue@latest/dist/vue.js"></script>
<script src="//unpkg.com/vue-select@latest/dist/vue-select.js"></script>
<div id="app">
  <h1>Vue Select</h1>
  <v-select label="countryName" :options="options" v-model="selectedCountry"></v-select>
</div>

Answer №3

One recommendation is to integrate vee-validate into your current project and implement the necessary rule for the field by using v-validate="{required:true}".

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