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Right way with combo box control?
Message
From
04/06/2008 16:08:07
 
 
To
02/06/2008 14:52:52
General information
Forum:
Visual FoxPro
Category:
Forms & Form designer
Environment versions
Visual FoxPro:
VFP 9 SP1
OS:
Windows XP SP2
Network:
Windows 2003 Server
Database:
Visual FoxPro
Miscellaneous
Thread ID:
01320984
Message ID:
01321734
Views:
20
Hi Marcia,

Got everything mostly working...thanks for the help. One thing I noticed though when doing some other testing is if the combo starts up with nothing picked (because in this case, I just appended a record and the value of the "ID" field is zero which does not have a corresponding option in the combos rows)...in this case, the .ListItemID was 1 (when I thought it would be zero or as the book states, -1) although .ListItem was correctly zero. I was using .ListItemID throughout my code as that was "safer" if I happen to append or remove items from the list.

So something seems to have changed. Any ideas or did VFP change over time?

Albert

>I don't seem to have occasion to use a lot of combo boxes and they always seem to take more work to get going - I need some understanding on them...
>
>In addition to Tamr's excellent advice, if you have a copy of 1001 Things You Wanted to Know About Visual FoxPro, take a look at Chapter 5.
>
>Even if you don't have the book, you can download the sample chapters for free (Chapter 5 is one of them):
>
>Chapter 5: Combos and Lists
>
>Combo and list box basics
>List and ListItem collections
>When do the events fire?
>How do I bind my combo and list boxes?
>How do I refer to the items in my combo and list boxes?
>What is the difference between DisplayValue and Value?
>What's the difference between RowSourceTypes "alias" and "fields"?
>How do I make my combo and list boxes point to a particular item?
>Quickfill combos
>How do I add new items to my combo and list boxes?
>How do I filter the items displayed in a second combo or list box based on the selection made in the first?
>A word about lookup tables
>Generic lookup combos and lists
>So what if I want to bind my combo to a value that isn't in the list?
>How do I disable individual items in a combo or list?
>How do I create a list box with check boxes like the one displayed by Visual FoxPro when I select "View Toolbars" from the menu?
>A mover list class
>What if I need to display hundreds of items in my combo box?
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