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Object and Control and Class
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À
24/03/2006 09:35:34
Information générale
Forum:
Visual FoxPro
Catégorie:
Classes - VCX
Divers
Thread ID:
01107358
Message ID:
01107406
Vues:
17
>Hi,What is Defference of Class with Object and Control?
>please Explain simple text and example.
>thank you.

I'll try to explain in very simple manner, though there are tons of references in Internet.

Class is an abstract model of the real objects. Say, we're looking at the car. The car can have various properties and methods. Let's say, for our purpose we're interested in just two properties: the release date (date, when the car was put on sale - what's the name for this date?) and maximum possible speed.

So, we create a class CAR with two properties: dRelease_Date and nMaxSpeed.

We can have multiple objects of this class, which would represent different cars.

oFORD = createobject('CAR')

oHonda = createobject('CAR')

Then you can set properties of the objects. As you can see, you can instantiate any number of objects of the same class and then manipulate each object individually.

That's the simplest eplanation here. You can have much better explanations if you google on "inheritance, encapsulation, polymorphism".
If it's not broken, fix it until it is.


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