Numeric (ScreenField property)
Set or return the numeric attribute for screenfield (ScreenField class)
The Numeric 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.
Syntax
%currentBoolean = sfield:Numeric sfield:Numeric = newBoolean
Syntax terms
| %currentBoolean | A Boolean enumeration to get the current value of the the Numeric attribute applicable to sfield. Valid values are True and False (default). 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. |
| newBoolean | A Boolean enumeration to set the new value for the Numeric attribute applicable to sfield. Valid values are True and False (default) |
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.