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a!imageField_17r3

This page contains information related to an old version of the Image Component.

To take advantage of the latest features and improvements, we always recommend you use the latest version whenever possible. See the latest version's page for information about what's been changed.

Image

Function: a!imageField_17r3()

Displays an image from document management or the web.

See also: Document Image, Web Image

Parameters

Name Keyword Type Description
Label label Text Optional text to display as the field label.
Label Position labelPosition Text Optional text to determine where the label appears. Valid values include
  • "ABOVE" (default) Displays the label above the component.
  • "ADJACENT" Displays the label to the left of the component.
  • "COLLAPSED" Hides the label. The label will still be read by screen readers; see accessibility considerations for more information.
  • "JUSTIFIED" Aligns the label alongside the component starting at the edge of the page.
Instructions instructions Text Optional text displayed beneath the image.
Help Tooltip helpTooltip Text Displays a help icon with the specified text as a tooltip. The tooltip displays a maximum of 500 characters. The help icon does not show when the label position is "COLLAPSED".
Images images Array of Images A list of images to display created with
Size size Text Optional text to control what size image displays. Valid values are "STANDARD" (default), "ICON", "THUMBNAIL", "SMALL", "MEDIUM", and "LARGE".
Alignment align Text Determines alignment of the image(s). Valid values are "START" (default), "CENTER", and "END".
Visibility showWhen Boolean Determines whether the component is displayed on the interface. When set to false, the component is hidden and is not evaluated. Default: true.

The maximum display dimensions for each Size are listed below:

  • "ICON": 20x20 pixels
  • "THUMBNAIL": 100x200 pixels
  • "SMALL": 100x200 pixels
  • "MEDIUM": 200x400 pixels
  • "LARGE": 400x600 pixels
  • "STANDARD": natural dimensions

Notes

  • Images are scaled down as necessary to fit the size limit, preserving their natural aspect ratio. Images will never be scaled up, so they'll display at their natural size if they are smaller than the configured size.
  • Images look best with the "ICON" size if they are 40 x 40 pixels and have a transparent background. This size is recommended to ensure high quality rendering on high pixel density devices (E.g., MacBook Pros with Retina displays and many smartphones).
  • If Size is set to "THUMBNAIL", images can be clicked to open slideshows. With this configuration, images cannot have links associated with them.
  • If Size is set to "STANDARD", images display at either their natural width or the width of the column, whichever is smaller.
  • Avoid using this component for offline mobile forms because images do not render when offline.

Examples

Click EXPRESSION to copy and paste an example into the Interface Definition to see it displayed.

Display a Series of Document Images

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=a!imageField_17r3(
  label: "Image Field Example",
  images: {
    a!documentImage(
      document: a!iconNewsEvent(icon: "ENVELOPE")
    ),
    a!documentImage(
      document: a!iconNewsEvent(icon: "BRIEFCASE")
    ),
    a!documentImage(
      document: a!iconNewsEvent(icon: "CONVERSATION")
    )
  }
)

Returns the following when used as part of an interface expression:

screenshot of three example images

Display a Series of User Images with Looping

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=a!imageField_17r3(
  label: "Images",
  size: "SMALL",
  images: a!forEach(
    /* 
    * Document ids of images in your environment. 
    * Please adjust document ids appropriately.
    */
    items: { 1, 2, 3 },
    expression: a!documentImage(
      document: fv!item
    )
  )
)

Returns the following when used as part of an interface expression:

screenshot of three user images

Feature compatibility

The table below lists this component's compatibility with various features in Appian.
Feature Compatibility Note
Portals Incompatible
Offline Mobile Incompatible
Sync-Time Custom Record Fields Incompatible
Real-Time Custom Record Fields Incompatible

Custom record fields that evaluate in real time must be configured using one or more Custom Field functions.
Process Reports Incompatible

Cannot be used to configure a process report.
Process Events Incompatible

Cannot be used to configure a process event node, such as a start event or timer event.

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