Event Handler

This page is for application designers. It explains how to set up actions in response to an event, such as a user mouse-click.

Overview

Often in an application, you want to trigger an action based on the user:

  • either mouse-clicking on the screem
  • or pressing the enter key.

These user interactions are called events. In PhixFlow you can configure event handlers that respond to events by running a table-action or actionflow.

  • OnClick: the user mouse clicks in an area.
  • OnEnter: the user presses the Enter key in a data field.
  • OnBlur: the user mouse-clicks out of a data field.
    The event is triggered whether or not the field has changed.
  • OnChange: the user mouse-clicks out of a data field in which they have changed data.
    Notice that this event is not triggered by the user typing into a field.

You can set event handlers on the following components:

EventSupported components
OnClick
OnChange
Area
OnBlur
OnEnter
OnChange

Data fields:

  • Boolean
  • Date
  • Datetime
  • Number
  • String

You do not have to configure OnClick events for button components, because button actions are always triggered when the user mouse-clicks on them.

Adding an Event Handler

  1. From the screen, click on a component to open its properties.
  2. In the Event Handler section, click  Add New to create a new event handler.
  3. PhixFlow opens a new properties tab for the event handler.
  4. Select the Event Type, Action Method and specific table-action or actionflow you require; see the properties below.

Event Handler Properties

Basic Settings

FieldDescription
Event Type

Select the type of event that will trigger an action:

  • OnClick
  • OnEnter
  • OnBlur
  • OnChange.

The list shows only the events available for this type of component.

Action Method

Available when Event Type is selected.

Select the type of action:

  • Table-Action
  • No action
  • Actionflow
Action

Available when Action Method is Table-Action.

  • Either, select a table-action from the drop-down list
  • Or, to find table-actions belonging to a specific table:
    1. Click  List Tables to show tables in the repository
    2. Expand the table.
    3. Drag a table-action from the list into this box.
Actionflow

Available when Action Method is Actionflow.

To select an actionflow, do one of the following:

  • Select an actionflow from the drop-down list.
  • Click  Actionflow to show actionflows in the repository
  • Click  Add New to create a new actionflow; see Creating Actionflows