If you want to support the collection or display of float or integer data, including currency, add a numeric field to the form. The value in a numeric field can be formatted and displayed according to predefined patterns and according to the locale specified for the field.
After you add a numeric field to the form design, you can edit the caption text and manipulate the object’s properties in the Field, Value, and Binding tabs of the Object palette. You can define these properties:
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Specify that LiveCycle Designer ES use the horizontal length of the text field to determine how many numbers to allow.
Numeric fields support scripting and calculations. If a user is to supply data, you can define whether the input is recomm
ended or required, and you can set up messages to prompt users appropriately. All user input may be validated through scripting.
Note:
Numeric fields have a maximum user-entered or calculated value of 2,147,483,647. This number is the largest number that can fit into a 32-bit signed integer on a computer.
See also 

Overview of numeric fields