Textarea Control

Your user account or group membership must have the following permissions to design a Screen unless your user account has the Make this user a Super Admin setting selected:

• Screens: Edit Screens

• Screens: View Screens

See the Screens permissions or ask your Administrator for assistance.

Edit the default Variable Name setting value for this control if necessary. The Variable Name setting value represents data in this control during Requests. Ensure that the Variable Name setting value is a unique name from other controls in this Screen and contains at least one letter. This is a required setting.

Use the Variable Name setting value in the following ways:

• Reference this control by its Variable Name setting's value. The Data Preview panel in Preview mode corresponds the Textarea control's textual content with that Textarea control's Variable Name value. In the example below, form_text_area_1 is the Variable Name setting's value.

  

• Reference this control's value in a different Screen Builder control. To do so, use mustache syntax and reference this control's Variable Name value in the target control. Example: {{ form_text_area_1 }}.

• Reference this value in Visibility Rule setting expressions.

See best practices when editing a Request variable name.

Enter the validation rule(s) the Request participant must comply with to properly enter a valid value into this control. This setting has no default value. If there are no configured validation rules the following message displays: No validation rule(s). See Validation Rules for "Validation" Control Settings.

Follow these steps to add a validation rule to this control:

1. Access the Variable panel for this control while in Design mode, and then locate the Validation Rules setting.

2. Click the Add Rule button. The Select drop-down menu displays.

   

3. Select the rule that this control validates against.

4. Click Save. Parameters for the selected rule display. Parameter settings display which ones are required to properly configure the rule.

5. Enter the parameter settings that this control uses to validate against. See Validation Rule Settings, and then locate the validation rule for its parameters.

Follow these steps to edit a validation rule for this control:

1. Access the Variable panel for this control while in Design mode, and then locate the Validation Rules setting.

2. Click the Edit iconfor the validation rule to edit if that rule can be edited. Validation rules that do not have parameters cannot be edited. The parameter settings for that validation rule displays.

3. Edit the parameter settings that this control uses to validate against. See Validation Rule Settings, and then locate the validation rule for its parameters.

Follow these steps to delete a validation rule for this control:

1. Access the Variable panel for this control while in Design mode, and then locate the Validation Rules setting.

2. Click the Delete iconfor the validation rule to delete. A message displays to confirm deletion of the validation rule.

3. Click Delete.

Enter the default value this control displays. The default value can be assigned as a Request variable, text or JavaScript. When the Screen submits, the Request uses this control's default value unless the Request participant changes it. When using a Request variable in the Default Value setting, consider the following:

• If the Request variable is empty, the control does not display any value by default.

• When the Request variable is assigned a value for the first time, this value becomes the permanent default value of the control.

• Any further changes to the Request variable do not affect the default value of the control.

The Default Value setting supports using Request variables in mustache syntax. For example, if the Default Value setting is {{ FirstName }} {{ LastName }} from which a Request participant entered her first name and last name in separate controls (respectively) earlier in that Request, this control displays the contents of those controls by default during the Request.

Specify an expression that indicates the condition(s) under which this control displays. See Expression Syntax Components. If this setting does not have an expression, then this control displays by default.

For example, this control displays if the variable value tip is 1. For a detailed example of the Visibility Rule setting, see Show or Hide Controls Based on Button Selection.

Note the following regarding how to use visibility rules:

• To make this control hidden until another control contains a value, enter the Variable Name setting value of that control to this control's Visibility Rule setting.

• Visibility rules override custom CSS settings.

Select on which device types this control displays:

• Desktop: The control displays only on desktop devices. Enable the Show for Desktop toggle key.

• Mobile: The control displays only on mobile devices. Enable the Show for Mobile toggle key.

• Both: The control displays on both desktop and mobile devices. Both toggle keys are enabled by default.

  

Enter the value to represent this control in custom CSS syntax when in Custom CSS mode. As a best practice, use the same CSS Selector Name value on different controls of the same type to apply the same custom CSS style to all those controls.

Then, use this name in the Custom CSS feature to apply CSS styling to this control as follows:

[selector='Submit Form'] {
    color: blueviolet;
}

See the following best practices regarding custom CSS in Screens:

• Editing a CSS name to represent this control in custom CSS syntax

• Visibility rules override custom CSS settings

Enter the string that provides a text alternative to this control for the following purposes:

• Assistive technology, such as screen readers, read the Aria Label setting value.

• This control has a visual indication of its purpose, such as a control that uses a graphic instead of text, but still needs to clarify that purpose for anyone who cannot access the visual indication.

The Aria Label setting value replaces the Label setting value. For example, if a control has both a Label setting value and an Aria Label setting value, assistive technology only uses the Aria Label setting value.