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BINDEVENTS not always binding?
Message
De
23/12/2004 02:40:48
 
 
À
22/12/2004 23:56:34
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Versions des environnements
Visual FoxPro:
VFP 8 SP1
OS:
Windows XP SP1
Divers
Thread ID:
00971677
Message ID:
00971693
Vues:
21
James,

You should avoid binding events as an object (or it's delegate object) is in the process of instantiation.

I have also found out that VFP9 breaks a key function of BINDEVENT. It will always return the return value of the event source and never that of the delegate no matter how the flags are set.

>I'm trying to bind some events in a textbox in a column of a grid to methods in the grid. The code looks like this (done in the INIT of the textbox)
>
>
      lcEvent='Click'
>      BINDEVENT(THIS,lcEvent,THIS.PARENT.PARENT,'TextBox'+lcEvent)
>      lcEvent='RightClick'
>      BINDEVENT(THIS,lcEvent,THIS.PARENT.PARENT,'TextBox'+lcEvent)
>      lcEvent='GotFocus'
>      BINDEVENT(THIS,lcEvent,THIS.PARENT.PARENT,'TextBox'+lcEvent)
>      lcEvent='When'
>      BINDEVENT(THIS,lcEvent,THIS.PARENT.PARENT,'TextBox'+lcEvent)
>      lcEvent='Valid'
>      BINDEVENT(THIS,lcEvent,THIS.PARENT.PARENT,'TextBox'+lcEvent)
>      lcEvent='LostFocus'
>      BINDEVENT(THIS,lcEvent,THIS.PARENT.PARENT,'TextBox'+lcEvent)
>      lcEvent='InteractiveChange'
>      BINDEVENT(THIS,lcEvent,THIS.PARENT.PARENT,'TextBox'+lcEvent)
>      lcEvent='KeyPress'
>      BINDEVENT(THIS,lcEvent,THIS.PARENT.PARENT,'TextBox'+lcEvent)
>
>
>This works for six of the eight events. That is, I can verify that the method in the grid is invoked as expected, except for Valid and When.
>
>Any ideas why this would be true?
>
>Thanks,
- Jeff
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