Difference between revisions of "ADDPROPERTY()"
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==See Also== | ==See Also== | ||
| − | [[ACLASS()]], [[AMEMBERS()]], [[CLASS | + | [[ACLASS()]], [[AMEMBERS()]], [[CLASS]], [[COMPOBJ()]], [[CREATEOBJECT()]], [[DEFINE CLASS]], [[DODEFAULT()]], [[METHOD]], [[NEWOBJECT()]], [[REMOVEPROPERTY()]], [[SET CLASSLIBRARY]], [[TOSTRING()]], [[WITH]] |
Revision as of 11:48, 1 December 2009
Purpose
Function to add a property to an existing object
Syntax
ADDPROPERTY(<object-name> ,<expC>[,<exp>])
See Also
ACLASS(), AMEMBERS(), CLASS, COMPOBJ(), CREATEOBJECT(), DEFINE CLASS, DODEFAULT(), METHOD, NEWOBJECT(), REMOVEPROPERTY(), SET CLASSLIBRARY, TOSTRING(), WITH
Description
The Visual FoxPro compatible ADDPROPERTY() function is used to add a property to an existing object. It returns .T. (True) if the property was successfully added and .F. (False) otherwise.
| Parameter | Description |
|---|---|
| <object-name> | The name of the object. |
| <expC> | The name of the property to be added. |
| <exp> | The value to assign to the property being added. This is optional: if omitted and the property being added already exists, the property value is unchanged, if omitted and the property is new, the value is initialized to .F. (False). |
All classes have an inbuilt ADDPROPERTY 'factory method'. This can be used as an alternative to the ADDPROPERTY() function to add properties to an object at runtime.
<object-name>.addproperty(<expC>,<exp>)
Note: the <exp> value is required.
Properties can be removed using the REMOVEPROPERTY() function or inbuilt REMOVEPROPERTY 'factory method'.
Example
define class myclass as custom myprop = "Hello World" enddefine myobject = createobject("myclass") Messagebox(myobject.myprop) addproperty(myobject, "myprop2", "goodbye") // Or: myobject.addproperty("myprop2", "goodbye") Messagebox(myobject.myprop2) removeproperty(myobject, "myprop2") // Or: myobject.removeproperty("myprop2")
Products
Recital Server, Recital
