Sets the value of a class property. The statement
allows you to refer to a class property by providing a character
expression for the property name, along with an object reference, THIS-OBJECT system
reference, or the name of a class. The compiler supports both ABL user-defined
types and .NET types for the object reference or class name.
At
run time, the AVM:
- Determines the actual type of the
object reference, if present
- Resolves the property name expression
- Validates the property data type against the type of the target
and performs the assignment
Note: The DYNAMIC-PROPERTY statement
also works with .NET indexed properties. Normally, ABL allows you
to refer to a .NET indexed property without using the property name,
but for dynamic access you must use the property name, typically Item indexed
property.
Syntax
DYNAMIC PROPERTY( { object-reference | class-type-name }
, property-name [ , index ] ) = new-value
|
-
object-reference
- Specifies a reference to an ABL or .NET class instance that
exposes the specified property as an instance member. The compiler
allows object-reference to be declared as any
object type. At run time, the object type must resolve to the type
that exposes the property.
-
class-type-name
- Specifies the name of an ABL or .NET class type that defines
the specified property as a static member. This is a CHARACTER expression that
the AVM evaluates to the type name of a class at run time. It must only
be the name of a class: interfaces are not valid.
-
property-name
- Specifies a CHARACTER expression that evaluates to the property name
at run time.
-
index
- Specifies an integer expression for the index of the specified
element. Use index to set or retrieve an individual
array element. You can also operate on an entire array by removing
the index the same way as you work with non-dynamic property access.
-
new-value
- The value of any data type that can be assigned to the property.
Note: The value of new-value cannot
be converted to the property's type.
