> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/reusable-content/web/web-form-createlistbox.md).

# web/form/createListbox

Listbox fields and widget annotations can be added programmatically. There are several properties and widget flags as highlighted below:

#### Listbox widget flags

| Widget flag   | Description                                  | Unique to listbox? |
| ------------- | -------------------------------------------- | ------------------ |
| READ\_ONLY    | The field value cannot be changed.           | No                 |
| REQUIRED      | The field must have a value when exported.   | No                 |
| COMBO         | The field is a listbox. Must be **false**.   | No                 |
| MULTI\_SELECT | The field can have multiple selected values. | No                 |

#### Listbox sample code

{% tabs %}
{% tab title="JavaScript (SDK v8.0+)" %}

```js
WebViewer(...)
.then(instance => {
  const { annotationManager, Annotations, documentViewer } = instance.Core;
  const { WidgetFlags } = Annotations;

  documentViewer.addEventListener('documentLoaded', () => {
    // Sets flags for the listbox widget.
    const flags = new WidgetFlags();
    flags.set(WidgetFlags.COMBO, false);
    flags.set(WidgetFlags.MULTI_SELECT, true);
    flags.set(WidgetFlags.REQUIRED, true);

    // Define the available options.
    const listOptions = [
      { value: '1', displayValue: 'one' },
      { value: '2', displayValue: 'two' },
      { value: '3', displayValue: 'three' }
    ];

    // Specify a font-family and font size.
    const font = new Annotations.Font({ name: 'Helvetica', size: 12 });

    // Creates a listbox form field.
    const field = new Annotations.Forms.Field('ListBoxField 1', {
      flags,
      font,
      type: 'Ch',
      options: listOptions,
      value: listOptions[0].value,
    });

    // Creates a listbox widget annotation.
    const widgetAnnot = new Annotations.ListWidgetAnnotation(field);
    widgetAnnot.PageNumber = 1;
    widgetAnnot.X = 100;
    widgetAnnot.Y = 100;
    widgetAnnot.Width = 200;
    widgetAnnot.Height = 50;

    // Add form field to field manager and widget annotation to annotation manager.
    annotationManager.getFieldManager().addField(field);
    annotationManager.addAnnotation(widgetAnnot);
    annotationManager.drawAnnotationsFromList([widgetAnnot]);
  });
});
```

[Annotations.WidgetFlags](https://sdk.apryse.com/api/web/Core.Annotations.WidgetFlags.html) [Annotations.Forms.Field](https://sdk.apryse.com/api/web/Core.Annotations.Forms.Field.html) [Annotations.ListWidgetAnnotation](https://sdk.apryse.com/api/web/Core.Annotations.ListWidgetAnnotation.html#ListWidgetAnnotation__anchor) [Annotations.WidgetAnnotation](https://sdk.apryse.com/api/web/Core.Annotations.WidgetAnnotation.html) [AnnotationManager.addAnnotation](https://sdk.apryse.com/api/web/Core.AnnotationManager.html#addAnnotation__anchor) [AnnotationManager.drawAnnotationsFromList](https://sdk.apryse.com/api/web/Core.AnnotationManager.html#drawAnnotationsFromList__anchor) [AnnotationManager.getFieldManager](https://sdk.apryse.com/api/web/Core.AnnotationManager.html#getFieldManager__anchor) [FieldManager.addField](https://sdk.apryse.com/api/web/Core.Annotations.Forms.FieldManager.html#addField__anchor)
{% endtab %}

{% tab title="JavaScript (SDK v6.0+)" %}

```js
WebViewer(...)
  .then(instance => {
    const { docViewer, annotManager, Annotations } = instance;

    docViewer.on('documentLoaded', () => {
      // create field and widget annotations here
    });
  });
```

[DocumentViewer#documentLoaded](https://sdk.apryse.com/api/web/Core.DocumentViewer.html#event:documentLoaded__anchor)
{% endtab %}
{% endtabs %}


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