Making an input field in Vue automatically read-only when a specific value is met

Question

Making an input field in Vue automatically read-only when a specific value is met

Is it possible to make an input field read-only in Vue.js based on data values?

Here's a situation:

<select class="form-control" 
        id="selectCategory" 
        :readonly="cat_id >= 1"
        name="cat_id">

I'm looking for a way to have the field be read-only but not disabled. How can this be accomplished?

javascript forms vue.js

Answer 1

Answer №1

It's important to remember that the select tag in HTML does not support a readonly attribute according to the specifications.

In most cases, you can use something like this as an alternative:

<input class="form-control" id="selectCategory" :readonly="cat_id >= 1">

The documentation explains that if an attribute value is false, then the attribute will be omitted. For more information, refer here.

Answer 2

It's important to remember that the select tag in HTML does not support a readonly attribute according to the specifications.

In most cases, you can use something like this as an alternative:

<input class="form-control" id="selectCategory" :readonly="cat_id >= 1">

The documentation explains that if an attribute value is false, then the attribute will be omitted. For more information, refer here.

Answer 3

Answer №2

Here is an example of how to achieve this:

<input v-bind:readonly="isReadOnly">

Answer 4

Here is an example of how to achieve this:

<input v-bind:readonly="isReadOnly">

Answer 5

Answer №3

During the creation of a password changing form, I encountered an issue with the browser's autocomplete feature interfering. To prevent this, you can use the following method to customize the value as needed.
When trying to set a field as readonly using v-bind:readonly property with true, it ends up being rendered as readonly="readonly".
Below is a solution that effectively toggles the readonly property on focusout event.

Implementing in Vue Template HTML

<input type="password" v-model="user.password" placeholder="Password" @focusin="toggleReadonly" @focusout="toggleReadonly" :readonly="true">

Toggle Method

toggleReadonly(event){
          event.preventDefault()
          if(event.target.getAttribute('readonly') == 'readonly'){
              event.target.removeAttribute('readonly')
          }
          else{
              event.target.setAttribute('readonly', 'readonly')
         }
 }

Answer 6

During the creation of a password changing form, I encountered an issue with the browser's autocomplete feature interfering. To prevent this, you can use the following method to customize the value as needed.
When trying to set a field as readonly using v-bind:readonly property with true, it ends up being rendered as readonly="readonly".
Below is a solution that effectively toggles the readonly property on focusout event.

Implementing in Vue Template HTML

<input type="password" v-model="user.password" placeholder="Password" @focusin="toggleReadonly" @focusout="toggleReadonly" :readonly="true">

Toggle Method

toggleReadonly(event){
          event.preventDefault()
          if(event.target.getAttribute('readonly') == 'readonly'){
              event.target.removeAttribute('readonly')
          }
          else{
              event.target.setAttribute('readonly', 'readonly')
         }
 }

Answer 7

Answer №4

To create a boolean property based on specific conditions, you can use a computed property.

<input type="text" :disabled=isDisabled>

You can set up your logic within the computed property like this:

computed: {
 isDisabled() {
// Add your criteria to determine disabled status here...
   return true;
 }
}

Check out the JSFIDDLE example: https://jsfiddle.net/example/0abc1234/

Answer 8

To create a boolean property based on specific conditions, you can use a computed property.

<input type="text" :disabled=isDisabled>

You can set up your logic within the computed property like this:

computed: {
 isDisabled() {
// Add your criteria to determine disabled status here...
   return true;
 }
}

Check out the JSFIDDLE example: https://jsfiddle.net/example/0abc1234/

Making an input field in Vue automatically read-only when a specific value is met

Answer №1

Answer №2

Answer №3

Answer №4

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