# Event

To provide efficient interaction between the user and the form one can use the following events to trigger various form actions:

### Form/Nested form events

**onLoad** - occurs when form has been loaded

**onBeforeSave** - occurs before form has been saved (form standard 'Save' button or 'Save' form api action)

**onAfterSave** - occurs after form has been saved (form standard 'Save' button or API > 'Save' form action)

**onActivate** - occurs when form has been activated (Navigate > 'Return Back' form action or navigating back via breadcrumb for linked forms)

### Form input events

**onChange** - occurs when the value of an element has been changed

### Button events

**onClick** - occurs when a button is clicked

### List events

**onChange** - occurs when the value of any of list checkboxes has been changed.

### Form event setup

* Select the element on the form (1)
* Click "Add New" button (2)

<img src="https://3097383375-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FK2dgObBO5ydOH2ZXDJLa%2Fuploads%2F6yaMR4iF8PRdsh3M0Sf7%2Ffile.excalidraw.svg?alt=media&#x26;token=092c28b8-c2a7-4e7c-b09e-b2e92f59f8ab" alt="" class="gitbook-drawing">

Provide required event details:

* Select event type (3)
* Provide conditions if necessary (4)
* Click "Add" button to tie actions to the event (5)
* Select existing actions (6) or click "+" icon to create new ones (7)
* Pass conditions if necessary (8)

Save changes.

<img src="https://3097383375-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FK2dgObBO5ydOH2ZXDJLa%2Fuploads%2FJTFdr4otOMkMKL5a9BcV%2Ffile.excalidraw.svg?alt=media&#x26;token=4bcc5a74-bc39-48c1-afce-5f8f51b2af82" alt="" class="gitbook-drawing">