ngModel not work

I want to use radio buttons. but I can’t get model value…

This is my code:

        <div class="form-group row">
          <label class="col-sm-2 form-control-label">gender</label>
          <div class="col-sm-10 btn-group" [(ngModel)]="gender" ngbRadioGroup name="gender" ngDefaultControl>
            <label class="btn btn-primary">
              <input type="radio" value="M" name="gender"> Male
            </label>
            <label class="btn btn-primary">
              <input type="radio" value="F" name="gender"> Female
            </label>
          </div>
          <em>gender: {{gender}}</em>
        </div>

[ehdwns980416]

@scttcper in that example they use ngModel in div elements. https://ng-bootstrap.github.io/#/components/buttons/examples

[cgaravito]

@alobban You are using the old version of ng-bootstrap. The problem is that no found the module NgbRadio, because the your version don’t have.