Tips for accessing the ion-radio value in Vue.js within an Ionic framework

Question

Tips for accessing the ion-radio value in Vue.js within an Ionic framework

I am currently utilizing the ionic framework with vuejs.

The product page I created does not include any form elements.

On the page, there is a radio button for selecting the size of the product.

How can I retrieve the selected value from the radio button created using ion-radio when the add to cart button is pressed on that page?

I am still learning vue.js. In the past, in jQuery, I would get the value using the following method:

$('input[name=radioName]:checked').val()

How do I extract the selected radio button value in vuejs???

Below is the corresponding HTML section:

<ion-list v-if="product.size_maps">
  <ion-radio-group>
    <ion-row>
      <ion-col
        v-for="size in product.size_maps"
        :key="size.id"
        size="6"
        id="product_size"
      >
        <ion-item>
          <ion-label class="ion-no-margin">
            {{ size.size.text }}
          </ion-label>
          <ion-radio slot="start" :value="size.size.id"></ion-radio>
        </ion-item>
      </ion-col>
    </ion-row>
  </ion-radio-group>
</ion-list>

I have implemented a method named addToCart:

  methods: {
    addToCart(event) {
      console.log(event);
      // Obtain radio button value here
    }
  }

Here is how I invoked the addToCart function within the button:

<ion-button
  color="primary"
  fill="solid"
  expand="block"
  size="default"
  v-on:click="addToCart"
>
  Add To Cart
</ion-button>

Edit:

I attempted to use v-model to fetch the data. Unfortunately, without an available input tag, I couldn't apply it.

If I included the v-model in the ion-radio tag, then all radio buttons end up getting checked.

javascript vue.js ionic-framework ionic4

Answer 1

Answer №1

I discovered that in order for v-model to function properly, it must be added to the ion-radio-group element rather than the individual ion-radio elements.

For the solution:

Add v-model to the ion-radio-group element.

<ion-list v-if="product.size_maps">
  <ion-radio-group v-model="selected_size"> <!-- Make sure v-model is included here -->
    <ion-row>
      <ion-col
        v-for="size in product.size_maps"
        :key="size.id"
        size="6"
        id="product_size"
      >
        <ion-item>
          <ion-label class="ion-no-margin">
            {{ size.size.text }}
          </ion-label>
          <ion-radio slot="start" :value="size.size.id"></ion-radio>
        </ion-item>
      </ion-col>
    </ion-row>
  </ion-radio-group>
</ion-list>

Then add selected_size to your data :

  data() {
    return {
      ...
      selected_size: 0
    };
  }

Finally, access the selected_size as needed within your methods:

  methods: {
    addToCart(event) {
      console.log(event);
      // Retrieve and use the selected radio button value
      console.log(this.selected_size);
    }
  }

Answer 2

I discovered that in order for v-model to function properly, it must be added to the ion-radio-group element rather than the individual ion-radio elements.

For the solution:

Add v-model to the ion-radio-group element.

<ion-list v-if="product.size_maps">
  <ion-radio-group v-model="selected_size"> <!-- Make sure v-model is included here -->
    <ion-row>
      <ion-col
        v-for="size in product.size_maps"
        :key="size.id"
        size="6"
        id="product_size"
      >
        <ion-item>
          <ion-label class="ion-no-margin">
            {{ size.size.text }}
          </ion-label>
          <ion-radio slot="start" :value="size.size.id"></ion-radio>
        </ion-item>
      </ion-col>
    </ion-row>
  </ion-radio-group>
</ion-list>

Then add selected_size to your data :

  data() {
    return {
      ...
      selected_size: 0
    };
  }

Finally, access the selected_size as needed within your methods:

  methods: {
    addToCart(event) {
      console.log(event);
      // Retrieve and use the selected radio button value
      console.log(this.selected_size);
    }
  }

Answer 3

Answer №2

While I may not be familiar with the ionic framework, it seems clear that there is a solution to your issue at hand. It appears that you need to properly connect the value of

<ion-radio slot="start" :value="size.size.id"></ion-radio>

to the data property by using:

<ion-radio slot="start" v-model="size.size.id"></ion-radio>

, and

data() {
    return {
        size: {
            size: {
                id: ''
            },
        },
    };
},

The crucial point here is to set an initial value in accordance with the specifications provided by the ionic framework. I have inserted an empty string as an example. Additionally, make sure to assign an initial value to the radio button like so:

Once this setup is complete, you can simply retrieve the value within your method:

methods: {
    addToCart(event) {
        console.log(event);
      // obtain radio button value here
        console.log(this.size.size.id);
    }
}

Answer 4

While I may not be familiar with the ionic framework, it seems clear that there is a solution to your issue at hand. It appears that you need to properly connect the value of

<ion-radio slot="start" :value="size.size.id"></ion-radio>

to the data property by using:

<ion-radio slot="start" v-model="size.size.id"></ion-radio>

, and

data() {
    return {
        size: {
            size: {
                id: ''
            },
        },
    };
},

The crucial point here is to set an initial value in accordance with the specifications provided by the ionic framework. I have inserted an empty string as an example. Additionally, make sure to assign an initial value to the radio button like so:

Once this setup is complete, you can simply retrieve the value within your method:

methods: {
    addToCart(event) {
        console.log(event);
      // obtain radio button value here
        console.log(this.size.size.id);
    }
}

Tips for accessing the ion-radio value in Vue.js within an Ionic framework

Answer №1

Answer №2

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