Difference between revisions of "DODEFAULT()"
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==Purpose== | ==Purpose== | ||
Function to call the parent class method from within a sub-class | Function to call the parent class method from within a sub-class | ||
| Line 12: | Line 8: | ||
==See Also== | ==See Also== | ||
| − | [[ACLASS()]], [[ADDPROPERTY()]], [[AMEMBERS()]], [[CLASS]], [[COMPOBJ()]], [[CREATEOBJECT()]], [[DEFINE CLASS]], [[METHOD]], [[NEWOBJECT()]], [[REMOVEPROPERTY()]], [[ | + | [[ACLASS()]], [[ADDPROPERTY()]], [[AMEMBERS()]], [[CLASS]], [[CLASS - Methods]], [[CLASS - Parameters]], [[CLASS - Properties]], [[CLASS - Scoping]], [[COMPOBJ()]], [[CREATEOBJECT()]], [[DEFINE CLASS]], [[DISPLAY CLASSES]], [[FOREACH]], [[LIST CLASSES]], [[LOADOBJECT()]], [[METHOD]], [[NEWOBJECT()]], [[OBJECT()]], [[PRINT_HTML()]], [[PRINT_JSON()]], [[PRINT_R()]], [[PRINT_XML()]], [[REMOVEPROPERTY()]], [[REQUIRE_ONCE()]], [[SAVEOBJECT()]], [[SQL SELECT]], [[WITH]] |
==Description== | ==Description== | ||
| − | The | + | The DODEFAULT() function is used to call the parent class method from within a sub-class. It can only be used within a class method. It calls the parent class method of the same name as the calling method. It allows a sub-class to perform the default parent class behavior along with additional behavior specific to that particular sub-class. |
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<code lang="recital"> | <code lang="recital"> | ||
class Box | class Box | ||
| − | procedure Draw | + | procedure Draw |
| − | + | messagebox("This is the parent Draw Method") | |
| − | endproc && Draw | + | endproc && Draw |
endclass | endclass | ||
class Dialog1 of Box | class Dialog1 of Box | ||
| − | procedure Draw | + | procedure Draw |
| − | + | messagebox("This is the object Draw Method") | |
| − | // call the Draw method of the Box parent class | + | // call the Draw method of the Box parent class |
| − | + | dodefault() | |
| − | endproc && Draw | + | endproc && Draw |
endclass | endclass | ||
| Line 42: | Line 38: | ||
==Products== | ==Products== | ||
| − | Recital | + | Recital Server, Recital |
[[Category:Documentation]] | [[Category:Documentation]] | ||
[[Category:Functions]] | [[Category:Functions]] | ||
| + | [[Category:Objects]] | ||
| + | [[Category:Objects Functions]] | ||
Latest revision as of 15:05, 14 December 2009
Purpose
Function to call the parent class method from within a sub-class
Syntax
DODEFAULT()
See Also
ACLASS(), ADDPROPERTY(), AMEMBERS(), CLASS, CLASS - Methods, CLASS - Parameters, CLASS - Properties, CLASS - Scoping, COMPOBJ(), CREATEOBJECT(), DEFINE CLASS, DISPLAY CLASSES, FOREACH, LIST CLASSES, LOADOBJECT(), METHOD, NEWOBJECT(), OBJECT(), PRINT_HTML(), PRINT_JSON(), PRINT_R(), PRINT_XML(), REMOVEPROPERTY(), REQUIRE_ONCE(), SAVEOBJECT(), SQL SELECT, WITH
Description
The DODEFAULT() function is used to call the parent class method from within a sub-class. It can only be used within a class method. It calls the parent class method of the same name as the calling method. It allows a sub-class to perform the default parent class behavior along with additional behavior specific to that particular sub-class.
Example
class Box procedure Draw messagebox("This is the parent Draw Method") endproc && Draw endclass class Dialog1 of Box procedure Draw messagebox("This is the object Draw Method") // call the Draw method of the Box parent class dodefault() endproc && Draw endclass oDIALOGOK = createobject("Dialog1") oDIALOGOK.Draw() release oDIALOGOK
Products
Recital Server, Recital
