Horizontal Rule Form Element

The Horizontal Rule form element displays a horizontal line on the form. Use Horizontal Rules to separate sections of the form from each other.

Example of the Horizontal Rule form element, shown in a viewer

Horizontal Rule Properties

The Properties table describes the properties of the Horizontal Rule form element.

The type of a property defines what types of values the property can have. Many properties are type string, which means that the property's value is text. Boolean properties can be true or false. Some properties have more than one possible type.

Property names in Workflow Designer's Properties panel are written using the capitalization and spacing of a title. Property names in expressions are valid JavaScript identifiers and start with a lower case letter.

In the table below:

Expressions are case sensitive. When you access a form element property in an expression, you must use the correct capitalization.

Properties of the Horizontal Rule Form Element

Element ID

Type: String

The element's ID, which is used in other form elements and activities to access the element's properties. The ID must be unique across all elements in the form.

You cannot set the value of the Element ID property in an expression—you can only use the value that you configured for it. To use the Element ID property in an expression:

${Display Form ID}.state.{Element ID}.{property name}

For example:



Type: String | MarkdownRef

Indicates whether an error occurred in the element.

We recommend using the Set Form Element Error and Clear Form Element Error activities to work with errors in form elements.


Type: String

Indicates the name of the style that will be applied to the element.

To access the styleName property in an expression:

${Display Form ID}.state.{Element ID}.styleName

For example:



Type: String

The variety of form element. Horizontal Rule elements are type "HorizontalRule".

Use the type property to find out the variety of a form element in a form with many elements. Loop through ${Display Form ID}.state, comparing each element to the known form types and performing some action on the elements that meet your type criteria.

To access the type property in an expression:

${Display Form ID}.state.{Element ID}.type

For example:



Type: Boolean

Name in Properties Panel: Visible

Name to Use in Expressions: visible

Indicates whether the element is visible to the user. By default, Horizontal Rule elements are visible. If you want to hide the element, clear the Visible checkbox. You may want to change the visibility at run time depending on the user's input in a previous form element.

To access the visible property in an expression:

${Display Form ID}.state.{Element ID}.visible

For example:


Horizontal Rule Events

The following table describes the events associated with the Horizontal Rule form element. As in Workflow Designer, the events are listed in the order that they fire.

Events for the Horizontal Rule Form Element


The load event fires when the element finishes loading.

You can use the load event to set one or more of the element's properties at run time. For example, you could set the element's initial value.