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Create class of just controls
Message
De
22/10/2004 15:24:54
 
 
À
22/10/2004 13:24:03
Information générale
Forum:
Visual FoxPro
Catégorie:
Classes - VCX
Versions des environnements
Visual FoxPro:
VFP 8 SP1
OS:
Windows XP SP2
Divers
Thread ID:
00953797
Message ID:
00953846
Vues:
16
>Pardon my Friday ignorance, but I want to create a class and then start creating controls and adding the controls to the class one by one. For instance let's say you have some common values:
>
>Name
>Address1
>Address2
>City
>State
>Zip
>Phone
>
>I want to create 7 textboxes for these values and store each of them as a class so that I can drop all 7 on a form later. Then I change the attributes of them and have it take effect everywhere those special textboxes are used.


I see you have it. That is a Composite Class that you can drop anywhere and reuse. Just be aware of some problems with Composite Classes. They controls in them are tightly coupled. If you happen not to need one of them (say you do not need phone or fax in one instance), VFP will not let you delete it from the instance of class. You will have to make it invisible atruntime so the user will never know it's there but you are still carrying the baggage. Also all the controls beter be subclassed from the same VCX, else you'd be always loading more than one extra classes into your project.

HTH


Alex Feldstein, MCP, Microsoft MVP
VFP Tips: English - Spanish
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