ngIf an angular reactive form component value

Question

I have a set of radio buttons. If a user selected the value "yes" I want to show an additional box on the form.

https://stackblitz.com/edit/angular-4bgahw?file=src/app/personal/personal.component.ts

HTML.component

<div formGroupName="radioButtonsGroup" class="form-group col-6 pl-0 pt-3">

    <div class="form-check-inline" *ngFor="let item of personal.radioButtonsdata">
        <label for="{{item.section}}" class="col-12 customradio"
            ><span>{{item.section}}</span>
            <input [value]="item" id="{{item.section}}" type="radio" formControlName="selectedButton"/>
            <span class="checkmark"></span>
        </label>
    </div>

    <!-- <div class="col-md-8" *ngIf="selectedButton.control.item === 'yes'"> --> //my attempt to target above input value
  <div class="col-md-8" >
        <input type="text" formControlName="title" class="form-control" placeholder="Title">
</div>
    </div>

Can anybody get this to work and show me what I am doing wrong here please?

Answer 1

You need to access the value of the form control:

*ngIf="form.get('radioButtonsGroup.selectedButton').value.section === 'yes'">

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