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Allows to get the old field value when a new value is specified.
 | Removed since MetaScript 2.5 . |
Syntax
OldField( fieldName )
Parameters
| Parameter | Description |
|---|---|
| fieldName | String name of the field whose old value is requested. |
Description
OldField is a top-level function and is not associated with any object.
You can use this function to get the value a field had before it was assigned a new value.
Examples
The example below shows how to prevent assigning of an invalid field value:
See Also
SetField
(MetaScript Guide)
Labels: field-access, function
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OldField
(MetaScript Guide)
Labels: function, field-access
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Field
(MetaScript Guide)
Labels: function, field-access
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