Image Form Element

The Image form element displays an image in the form.

Example of the Image form element, shown in a viewer

Image Properties

The Properties table describes the properties of the Image 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 Image Form Element

Accessible Description

Type: String

Name in Properties Panel: Accessible Description

Name to Use in Expressions: accessibleDescription

An accessible version of the description of the element. The accesible description is not visible on the page; it is hidden.

You can use the Accessible Description property to provide a description that can be used by assistive technologies, such as screen readers.

Description

Type: String

Name in Properties Panel: Description

Name to Use in Expressions: description

A description of the element. The description appears below the element's title.

You can use the Description property to describe what the element represents or to provide instructions to the user about how to use the element.

You can format the description using Markdown.

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:

$form1.state.image1.visible

error

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.

Height

Type: Number

The height of the image in pixels.

You only need to set the height if you want the image to display at a certain height in the form. If you do not configure the height and width, the image displays at its actual size. Note that if the image is larger than the form, part of the image will not be visible.

Image URL

Type: String

The fully qualified URL of the image to display in the form.

A placeholder is used to represent the image in Workflow Designer until a valid URL has been entered.

styleName

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:

$form1.state.image1.styleName

Title

Type: String

Name in Properties Panel: Title

Name to Use in Expressions: title

The element's title, which appears at the top of the element. By default, the title is blank. You may want to change the title to describe what the element represents in your workflow.

You can format the title using Markdown.

Title Location

Type: String

Name in Properties Panel: Title Location

Name to Use in Expressions: titleLocation

Specifies whether the element's title appears above (default) or beside the element.

The value must be either "above" or "beside".

Tooltip

Type: String

Name in Properties Panel: Tooltip

Name to Use in Expressions: tooltip

A message that displays when the user hovers the mouse pointer over the Image. You may want to use the tooltip to provide help to the user.

type

Type: String

The variety of form element. Image elements are type "Image".

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:

$form1.state.image1.type

Visible

Type: Boolean

Name in Properties Panel: Visible

Name to Use in Expressions: visible

Indicates whether the element is visible to the user. By default, Image 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:

$form1.state.image1.visible

Width

Type: Number

The width of the image in pixels.

You only need to set the width if you want the image to display at a certain width in the form. If you do not configure the height and width, the image displays at its actual size. Note that if the image is larger than the form, part of the image will not be visible.

Image Events

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

Events for the Image Form Element

load

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.