Numeric (ScreenField property)

This property sets or returns the Numeric attribute for a ScreenField. If a field is Numeric, only numeric values may be entered in the field. The Numeric attribute is initially set for a field by the AddField method.

  %sfield:Numeric = bool
  bool = %sfield:Numeric

Numeric syntax

bool

A Boolean enumeration. Valid values are True (default) and False. A value is numeric only if it is composed of the characters 0 through 9, plus (+), minus (-), or period (.).

%sfield

A reference to an instance of a ScreenField object.

Usage Notes

Regardless of the value of a field's Numeric attribute, the programmer can assign any type of value to the field. Enforcement of the Numeric attribute takes place only when a user enters data in the field. Some terminal emulators do not enforce numeric field restrictions, so the programmer should be aware that the value of a numeric field must still be checked for validity.