Get Lable value of lightning-radio-group in JS

lightning-web-componentsradiogroup

I'm utilizing a LWC radio group for my user option selection, where the Options Label is a Record Name and the Value is the matching Id. I was able to correctly retrieve the Value, or Id, from the radio selection using the onchange event as described below. I also need to retrieve the Record Name, i.e. Label, of the selected Radio option using js. I would like to know if this is doable and, if so, if there are any relevant references.

Thankyou.

html

<template for:each={swimlanes.Swimlane} for:item="dataItem">
  <div key={dataItem.OrchestrationPlan} class="slds-box slds-m-around_xx-small">
    <lightning-accordion allow-multiple-sections-open active-section-name={swimlanes.ActiveSections}>
      <lightning-accordion-section name={dataItem.OrchestrationPlan} label={dataItem.OrchestrationPlan}>
        <lightning-radio-group options={dataItem.Tasks} value={rollBackPlanId} variant="label-hidden"
          onchange={handleRadioChange} >
        </lightning-radio-group>
      </lightning-accordion-section>
    </lightning-accordion>
  </div>
</template>

js

 handleRadioChange(event) {
    this.rollBackPlanId = event.detail.value;
    this.disableRollbackBtn = false;
    console.log("this.label==>", event.detail);
    console.log("this.value==>", JSON.stringify(this.rollBackPlanId));
  }

Best Answer

Since you already have the value, you can easily find the related record:

const selectedIndex = this.swimlanes.Swimlane.findIndex(
  (swimlane) => swimlane.Id === event.detail.value
);

Related Solutions

[SalesForce] lightning-radio-group not allowing multiselect

Thanks for bringing this up. It looks like this is a documentation bug and will be fixed in the near future.

In the meantime, if you need to select more than one option, lightning-checkbox-group is probably a better choice.

[SalesForce] How to change lightning-radio-group selected value programmatically

The primary technique I like using for intercepting events that any base component doesn't have is to wrap it with a div or span.

The relevant parts are:

<div onclick={handleValueIntercept}>
  <!-- some base component or whatever -->  
</div>

handleValueIntercept(evt) {
  if (evt.target.value === 'option1') {
    evt.preventDefault();
  }
}

However, using this technique I dont know for sure if you can "flash" the option 2 back selection to quickly revert to option 1 in the base component, to give the user a little UI feedback because otherwise it may be confusing why option 2 appears clickable...but it's not letting you.

I feel like you should be able to if you just control it in this intercept function, but I hope this gets you started!

EDIT: Actually, I realized that the order of the event and value setting wasn't working in my favor, so what I did was something else entirely. I will leave that answer up there just to showcase how to intercept clicks (but the value was being set after the click, so it was moot).

Here's a working version, complete with the reset to normal - albeit not pretty.

What's happening here is important in these two parts:

<div if:true={showRadioGroup}>
  <!-- something you want to reset -->
</div>

handleChange(evt) {
  const selectedValue = evt.detail.value;
  if (selectedValue === 'option2') {
    // this allows the render cycle to delay just long enough to "reset" state
    this.showRadioGroup = false;
    window.clearTimeout(this.delayTimeout);
    this.delayTimeout = setTimeout(() => {
      this.showRadioGroup = true;
    }, 0);
  } else {
    this.value = selectedValue
  }
}

As far as I can tell, this component does not take into account the value state as matching which color is highlighted, so programmatically passing it in after an event change doesn't seem to fly.

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