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Subclassing headers
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
Classes - VCX
Divers
Thread ID:
00163637
Message ID:
00163722
Vues:
27
>I saw a trick where you can sort a column by clicking on the header. I'd like to use this, but it's too time consuming to add the code to every header. So I thought I'd make a header class. But VFP doesn't like it when I try to do that. Is there a way to subclass the header class?
>
>Another issue is putting indexes on every field in every table so it can sort. Is this a good idea? I'm wondering if that would slow things down significantly.
>
>Thanks,
>
>-Michelle

There is also third approach to it, like it is done in VFX framework . There is a grid subcass and a Grid Builder where you just select if the columns should be sorted, and the Grid Builder writes the OnSort() method call into each Header.DblClick(). The indexes a built on the fly and destroyed when necessary by ClearAllidx() method.

Just somebody's 2 cents... :)

Nick
Nick Neklioudov
Universal Thread Consultant
3 times Microsoft MVP - Visual FoxPro

"I have not failed. I've just found 10,000 ways that don't work." - Thomas Edison
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