Error "Index out of range" on search query

I have a configuration of search query to clear my listview and insert new results of the query in the listview. The code looks like this:

{OnDataLoaded}

_APP. Clearlist

root. ListView.insertlist (Data)

}

{OnQueryChanged}

Load();

}

But unfortunately, whenever I do a query, and as a result appears my query update (triggered from a contextual menu) does not work and gives me the error "Index out of range". Even if the results of the query to fill listview very well and when I tap on a result it shows all data fine as well.

And FYI the update query does not work when the list is not be searched or filtered so I don't think that there is a problem with my function.

What I am doing wrong?

He solved.  The problem is that the update function trying to remove and add the updated item within the filtered datamodel causing problems.  I just got the datamodel to load before performing the functions as described below:

bool App::updateObject(const QString &id, const QString &name, const QString &description, const QString &datefield, const QString &lat, const QString &lon, const QString &categoryfield, const QString &mapurl, const QString &itempic)
{
    bool updated = false;
    bool saved = false;

//    if (!validateID(id))
//        return false;

    Location *location = new Location(id, name, description, datefield, lat, lon, categoryfield, mapurl, itempic);

    // Find location in the datamodel.
    // Only the id is used by find(). This is because location
    // defines equality (==) as having the same id. (See the definition of "=="
    // in the location class.)
    const QVariantList updateIndexPath = m_dataModel->find(location);

    // update the item if found
    if (updateIndexPath.isEmpty()) {
        alert(tr("Object ID not found."));
        updated = false;
    } else {
        load();
        updated = m_dataModel->updateItem(updateIndexPath, location);
    }

    // Save the datamodel if we updated something.
    if (updated) {
        m_storage->deleteFromDB(id);
        saved = m_storage->save(m_lastCustomerID, m_dataModel);
        load();
        refreshGroup();

    }

    return (updated && saved);
}

Tags: BlackBerry Developers

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