Numeric (ScreenField property): Difference between revisions
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{{Template:ScreenField:Numeric syntax}} | {{Template:ScreenField:Numeric syntax}} | ||
===Syntax terms=== | ===Syntax terms=== | ||
< | <table class="syntaxTable"> | ||
< | <tr><th>bool</th> | ||
< | <td>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 (.). </td></tr> | ||
< | <tr><th>%sfield</th> | ||
< | <td>A reference to an instance of a ScreenField object.</td></tr> | ||
</ | </table> | ||
==Usage notes== | ==Usage notes== | ||
Revision as of 20:24, 18 March 2011
Set or return the numeric attribute for screenfield (ScreenField class)
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.
Syntax
%currentBoolean = sfield:Numeric sfield:Numeric = newBoolean
Syntax terms
| 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.