Multiple radio button groups in one form

Drawing borders: fieldset to the rescue

If you want to put your radio button groups under the spotlight, <fieldset> is your best friend. Using this tag provides both, visual edge and semantic structure, offering better accessibility for screen reader users:

<form>
  <fieldset>
    <legend>What's your color, mate?</legend>
    <!-- Color radio buttons... -->
  </fieldset>

  <fieldset>
    <legend>How big do you like it?</legend>
    <!-- Size radio buttons... -->
  </fieldset>
</form>


Angular radio: Dynamic and reactive

For all the Angular devs out there, your radio button management can go dynamic. Angular's *ngFor directive facilitates dynamic generation of your button groups. Need a way to handle deselections? The (click) events are your magic wand:

<!-- Angular Template Syntax -->
<div *ngFor="let group of radioGroups">
  <fieldset>
    <legend>{{group.title}}</legend>
    <label *ngFor="let option of group.options">
      <input type="radio" name="{{group.name}}" value="{{option.value}}" (click)="selectOption(group, option)">
      {{option.label}}
    </label>
  </fieldset>
</div>


Dividing and conquering form structure

Creating a well-structured and accessible form involves tactically layering your form using <div> elements and <fieldset> tags. This will sculpt your radio groups into easily navigable sections:

<form>
  <div class="radio-group">
    <fieldset>
      <!-- Group 1 contents -->
    </fieldset>
  </div>
  <div class="radio-group">
    <fieldset>
      <!-- Group 2 contents -->
    </fieldset>
  </div>
</form>


Don't ignore the value attributes - make sure these match with their corresponding legend or label text. It's all about delivering a smooth ride for the screen reader users!

<fieldset>
  <legend>Choose Your Payment Method</legend>
  <label>
    <input type="radio" name="payment" value="Credit Card"> Big Spender 💳
  </label>
  <label>
    <input type="radio" name="payment" value="PayPal"> Secure Saver 💰
  </label>
</fieldset>


When the going gets tough: Complex scenarios

Consistent naming: Good for You, Great for Parser

While crafting your form, maintaining a consistent naming scheme for the radio button groups will make your life easier when you're parsing collected form data. Ever tried putting together a jigsaw puzzle with missing pieces? Yeah, that's how a parser feels if names are inconsistent.

Need for deselect? Script it!

Native HTML radio buttons don’t allow deselection once an option is selected. But if your form needs a "change of heart", JavaScript’s got your back. With JS, you can track button states and allow users to deselect if required.

Angular gotchas: Choose the right bindings!

Angular devs, beware of dynamic grouping issues! If your groups are dynamically generated, stick with [name] instead of [attr.name] for binding the name attribute – Angular will group your radio buttons correctly.