[PyKDE] QComboBox question...

[Trevor Phillips]

GuineaPig wrote:
> 
> I'm new to pyqt and I'm having a question about QComboBox.  I have one 
> on a form that I would like to populate with data from a db-table.  The 
> table is very simple, it has only two columns, an id and a description.  
> I would like to add the descriptions as items to the combobox with the 
> id as index.  (Something like: self.cmbSearch.insertItem(description, 
> id)).  But I'm getting 'index out of range' errors.  Could this be 
> because the indexes need to be in consecutive order (and the series of 
> id's isn't) ?  I can't find info on this in the pyqt-documentation...

I'm new myself, but I've done a few small apps since starting. The 
TrollTech docs are very useful (http://doc.trolltech.com/), but I didn't 
find an easy way to do what you're after (having a Combo Box with a 
"value" for each entry, a la HTML forms).

The way I got around it was to separately store a mapping (or what's the 
python term? Dictionary or something?) of either the labels, or the 
combo box index, to the values you're after. So, when you populate the 
entries in the field, also populate a mapping. Then, to get the value, 
you use the text or index to look up the mapping to get the value.

The index value of the combo box is solely a numeric item number for the 
items in the list (AFAIK).


-- 
. Trevor Phillips             -           http://jurai.murdoch.edu.au/ .
: Web Technical Administrator     -          T.Phillips at murdoch.edu.au :
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