Number Input


The Number Input Web Control allows app users to input numbers.



Placeholder Text

Expects type text.

The text displayed to the app user when no text has been inputted. By default text not encapsulated by string quotes will have this wrapping implied.

Data Binding


Expects type number.

By default, this Data Binding property auto-generates a Variable of type Number at the Web Page level to store the data from the input. Users can also edit the Data Binding property and create their own Variables.

Data Tag

Assigns a data tag on the value of the control. For more information, see Data Masking and Auditing.

Input Format

Numeral Non Negative

If checked, only allows non negative numbers to be inputted. If unchecked, allows both negative and non negative numbers. 

Numberal Thousands Group Stlye

Adjusts the style of how numbers are formatted with commas on the input.  The default value is 'thousand' where the value of 1000 will be displayed as 1,000.  This setting has no effect on the raw value stored.

Numeral Decimal Scale

Expects type number.

Adjusts the level of precision of numbers that can be inputted by the number of digits. If the value of 3 is entered, the number of digits that can be entered after the decimal point will be 3. For example, the value of 5.333 could be entered, but not 5.3333.

Numeral Integer Scale

Expects type number.

Adjusts the scale of numbers that can be inputted by the number of digits. For example, if the value of 4 is set here, the largest number possible will be 9999.


Expects type string (one of: "." "," "-"")

Sets the style of the number delimiter. For example, in many countries, the desired value will be "," which would format 10000 to 10,000.

Delimeter Lazy Show


Expects type string.

Sets a value that is displayed as a placeholder and is affixed to the beginning of the value.

No Immediate Prefix

Defers displaying the Prefix until there is a value in the field or the field is being edited.

Raw Value Trim Prefix

Trims the value set within Prefix, if set, at the beginning of the value. Affects only the raw value stored which is not displayed to the app user.


Enabling this will divide the raw value of the Number Input by 100.


Aria Label

Expects type text.

The aria-label attribute is used to define a string that labels the current element. It is used to provide an accessible name for the control. For more information see here.

Aria Invalid

Expects type text.

A value of true or false to indicate that the value entered into an input field is not in a format or a value the application will accept. For more information, see here

Input ID

Expects type text.

The Input ID assigned to the Number Input Web Control. This Input ID can tied to a Label so that clicking on the associated Label will allow users to enter Number input.

For more on how to use the Input ID, see Connecting Labels to Input Controls.


Is Visible

Expects type boolean.

If TRUE the control will be visible. If FALSE the control will not be displayed. If the field is empty, the control will be visible.

Is Disabled

Expects type boolean.

If TRUE the control will be disabled and the user will not be able to interact with the control. If FALSE the button will be enabled. If the field is empty, the control will be enabled.


The Number Input has a styles for the following states:

Default - When first rendered without state
Focused - when the control is focused
Disabled - When the control is disabled

Check Common style properties of web controls for further details on how to style this control.


On Blur

Triggers when the user leaves the input field. That is, when changing the focus from the field to some other part of the application.

Value Changed

Triggers with each typed character. That is, with a number input, the Value changes every time a key is pressed, unlike a Checkbox, where its Value changes when the box is selected.

Example #1

Data entered into a number input need to be bound to a variable. By default, Airkit automatically creates a Number Variable for the inputted data to be stored, which can be seen within Inspector > Data Binding.

In this example, a variable named number_input_1 has been created. 

Example #2

By default, the largest value that can be inputted is 99,999,999,999.

In the case of entering a person's age, this seems excessive. To ensure the desired data is inputted, limit the Numeral Decimal Scale to 0 so that only whole numbers can be entered and set the Numeral Integer Scale to 3. It could also be a good idea to set the Numeral Non Negative property to TRUE to ensure only positive numbers.