Encrypted Text Component

Encrypted Text

Function: a!encryptedTextField()

Allows entry of a single line of text that is encrypted when saved into a variable. The value remains encrypted while on the server and is only decrypted when displayed in the component.

See Also: Encrypted Text Data Type, Text

Parameters

Name Keyword Types Description

Label

label

Text

Text to display as the field label.

Instructions

instructions

Text

Supplemental text about this field.

Required

required

Boolean

Determines if a value is required to submit the form. Default: false.

Read-only

readOnly

Boolean

Determines if the field should display as not editable. Default: false.

Disabled

disabled

Boolean

Determines if the field should display as potentially editable but grayed out. Default: false.

Display Value

value

Decrypted Text

Text to display in the text field.

Save Input To

saveInto

List of Save

One or more variables that are updated with the encrypted text when the user changes the field.

Refresh After

refreshAfter

Text

Determines when the interface is refreshed with the saved value from the barcode field. Valid values are "KEYPRESS" to refresh after every character typed into the field and "UNFOCUS" (the default value) to refresh when the user deselects the field after changing its value.

Validation Group

validationGroup

Text

When present, this field is only validated when a button in the same validation group is pressed. See the documentation for more information about how to use validation groups.

Required Message

requiredMessage

Text

Custom message to display when the field's value is required and not provided.

Alignment

align

Text

Determines alignment of text value. Appian recommends this setting only be used inside the Grid Layout component. Valid values: "LEFT", "CENTER", "RIGHT".

Label Position

labelPosition

Text

Determines where the label appears. Valid values:

  • "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.

Placeholder

placeholder

Text

Text to display in the field when it is empty. Does not show if the field is read only.

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".

Masked

masked

Boolean

Determines if the value is obscured from view. Default: false.

Accessibility Text

accessibilityText

Text

Additional text to be announced by screen readers. Used only for accessibility; produces no visible change.

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.

Notes

  • Useful for gathering sensitive data from and displaying sensitive data to a user. The value entered in the field is encrypted before being stored in the variable specified in the Save Input To parameter. The Display Value parameter is decrypted just before being displayed in the field. The value remains encrypted when stored on disk.
  • The variable given as the Display Value parameter and the Save Input To parameter must be of type Encrypted Text. Variables declared as a!localVariables() local variables are valid. Literal values or variables of other types are not valid.
  • Since the value is encrypted before it can be acted upon by a validation expression, no validation beyond checking for requiredness is possible with this component. For example, it is not possible to write an expression that validates that an id number matches the form xxx-xx-xxxx, nor is it possible to compare to values of type Encrypted Text to determine if they are equal.
  • The value given to the Display Value parameter cannot be modified by an expression that expects Text because Encrypted Text is a different data type. No modification to the user input before storing it into the Save Input To variable is possible for the same reason.
  • When creating an interface that uses this component to save into an rule input of type Encrypted Text, the value of that input is not displayed inline in the Data pane. To access the value, click [Encrypted Text] in the value column.
  • This component has the same appearance as the text component.
  • Whether placeholder text clears on focus or input varies by device and browser. Placeholder text does not display on Microsoft Internet Explorer 9.

Examples

Encrypting and Decrypting a Value from a User

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=a!localVariables(
  local!secret,
  {
    a!columnsLayout(
      columns: {
        a!columnLayout(
          contents: {
            a!encryptedTextField(
              label: "Input",
              instructions: "Enter a secret here",
              value: local!secret,
              saveInto: local!secret,
              refreshAfter: "KEYPRESS"
            )
          }
        ),
        a!columnLayout(
          contents: {
            a!encryptedTextField(
              label: "Output",
              instructions: "The value is displayed here",
              value: local!secret,
              readOnly: true
            )
          }
        )
      }
    )
  }
)
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