Generic App Properties

Last updated: September 24, 2026Applies to current supported NIM releases

NIM Apps · Shared properties

Use these shared properties to control how compatible App items appear, process values, fit within a form, and validate input.

These properties are available where the selected item supports them. For settings unique to a Button, Card, Checkbox, Grid, or other item, see Item-Specific App Properties.

Appearance

Property	Description
Disabled / Hide / Hide Row	Use a value or JavaScript evaluation that returns true to disable an item, hide an item, or hide its row.
Label mode	Shows no label, a label above or below the item, or a floating label inside it. A floating label acts as a placeholder until the user enters or selects a value.
Label text	Sets the text shown for the item label.
Label margin/padding TRBL	Sets label spacing with a four-digit top, right, bottom, left value from 0000 through 5555.
Label color, font size, font weight, alignment	Controls the label's visual treatment. Font size accepts CSS units; weight is light, normal, semibold, or bold.

Use the JavaScript editor when a property accepts an evaluation. Variables can be inserted from the variable list.

Data processing

Property	Description
ID	Identifies the item in post-processing, including event notifications.
Variable name	Gives the item a name that other App processes can use.
Variable name (input)	Inserts another variable's result into the item. For example, a selected grid value can pre-populate a related dropdown while leaving it visible and editable.

Rendering

Property	Description
Alignment	Positions an item at the left or right of its column.
Cell margin/padding TRBL	Sets spacing around the item cell with a four-digit top, right, bottom, left value from 0000 through 5555.
Cell styles / Styles / Row styles	Opens CSS editors for the cell, item, or entire row.
Column width	Sets item width on a 1–12 grid scale.
Fit column	Stretches the item over the full width of its column.
Flexible row alignment	Arranges items at the Start, End, Center, Between, Around, or Evenly across their row.
Margin/padding TRBL	Sets item spacing with a four-digit top, right, bottom, left value from 0000 through 5555.
Shadow	Applies no shadow, or a small, regular, or large shadow.
Inline / vertical alignment	Makes an item inline and aligns it at the top, center, or bottom of its cell.
Title properties	Controls title text, CSS styles, padding, and maximum width. Title columns uses a 1–12 scale and cannot make a title wider than its item.
Label padding/margin TRBL	Sets label spacing within the item's rendering area.

Flexible row alignment examples:

Start	End	Center

Between	Around	Evenly

Validation

Property	Description
JavaScript	Uses JavaScript to determine whether the item's value is valid.
Required	Makes the form invalid when the item does not return a value. Combine it with a Button's Disabled if form invalid property to prevent submission.
Validation message	Sets the text shown below an invalid item.
Validation styles	Opens a CSS editor for the validation message.

Related documentation

• Configure App Form Actions
• Configure App Form Items
• Configure App Properties