settingsmartapi.component.html

<form [formGroup]="Form" (ngSubmit)="SaveSmartapiSetting()">

    <div class="form-group">
      <label>SmartApi Url
      <input matInput placeholder="url http://" type="text" class="form-control" formControlName="smartapiurl" required>
      </label>
    </div>
 
    <div>
      <br>
      <button type="submit"  class="btn btn-primary">Save SmartHarvester setting</button>
    </div>
  </form>