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OutSystems Language





Provides a button that users can click or tap to trigger an action, submit data or navigate to another screen.

If the button belongs to a form with some input fields, the button submits the information if you set Is Form Default property to Yes in the Button Widget. This is useful when you have several buttons in your form.


Name Description Mandatory Default value Observations
Name Identifies an element in the scope where it is defined, like a screen, action, or module. Yes
Confirmation Message Text literal or expression to define the confirmation message displayed after clicking this widget.
Enabled Boolean literal or expression that defines if the widget is editable. True
Is Form Default Boolean to specify if the button should submit form that is enclosed in. No The entry will redirect to the screen it points to.
Visible Boolean literal or expression that defines if the widget is displayed. Yes True
Style Classes Specifies one or more style classes to apply to the widget. Separate multiple values with spaces. "btn" The first button dragged to the screen or to the form will have an additional style class 'btn-primary'.
Property Name of an attribute to add to the HTML translation for this element. You can pick a property from the drop-down list or type a free text. The name of the property will not be validated by the platform.

Duplicated properties are not allowed. Spaces, " or ' are also not allowed.
Value Value of the attribute. You can type the value directly or write expressions using the Expression Editor.

If the Value is empty, the corresponding HTML tag is created as property="property". For example, the nowrap property does not require a value, therefore nowrap="nowrap" is added.


Name Description Mandatory Observations
On Click Screen action to be executed or a screen to navigate to when the widget is clicked. Yes
Built-in Validations Set to Yes to enable built-in validations for widgets that share the same form or screen with this widget.
Transition Transition effect applied when navigating to another screen. By default defined at module level.
Event JavaScript or custom event to be handled.
Handler JavaScript event handler.

Runtime Properties

Name Description Read Only Type Observations
Id Identifies the widget instance at runtime (HTML 'id' attribute). You can use it in JavaScript and Extended Properties. Yes Text
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