At Least One Control of FormGourp is valid to enable submit form

Question

I have Two controls on my FormGroup I need at least one of two controls be validate to make possible submitting form

I need that formGroup valid if only one FormControl is valid

this.form = this.fb.group({
        'keyWord' : new FormControl(null, [
          Validators.required,
          Validators.minLength(4)
        ]),
        'name':  new FormControl(null, [
          Validators.required
 ])

      });

html

 <form [formGroup]="form" (ngSubmit)="isPending=!isPending;searchCriteria(form.value);" class="form-group" novalidate>
        <small class="text-danger" *ngIf="?????">At Least One Field is required</small>
        <div class="input-group box-shadow">
            <div class="input-group-addon border-top-0 border-left-0 border-bottom-0 rounded-0">
                <i class="fa fa-search"></i>
            </div>
            <input type="text" formControlName="keyWord" placeholder="" class="form-control border-0">
            <input type="text" formControlName="name" placeholder="" class="form-control border-0">
            <button type="submit" value="submit">
      </form>

Answer 1

You can try this

<form [formGroup]="form" (ngSubmit)="isPending=!isPending;searchCriteria(form.value);" class="form-group" novalidate>
            <small class="text-danger" *ngIf="?????">At Least One Field is required</small>
            <div class="input-group box-shadow">
                <div class="input-group-addon border-top-0 border-left-0 border-bottom-0 rounded-0">
                    <i class="fa fa-search"></i>
                </div>
                <input type="text" formControlName="keyWord" placeholder="" class="form-control border-0">
                <input type="text" formControlName="name" placeholder="" class="form-control border-0">
                <button type="submit" value="submit" [disabled]="isvalid()">
          </form>

component function

  isValid(): boolean {
         if(this.form.get('keyWord').valid ||this.form.get('name').valid){
            retrun false;
         }
      return true;
    }