[Qt-interest] QSqlite Table not showing all rows in app
William Lugg
wlugg at prairienetworks.com
Sun Feb 7 02:35:46 CET 2010
Sorry, I should have included this info. I'm using a QSqlTableModel. Here is
the line of code I use to report the total rows in the model:
QString strRecordCount = " of "
+ QString::number( memberDataModel->rowCount() );
I use a QDataWidgetMapper to map data to widgets. I use
QDataWidgetMapper::toLast() and QDataWidgetMapper::toNext() to move forware in
the code in the following way:
// If we're not at the last record, move to the next record
if ( memberDataMapper->currentIndex() < memberDataModel->rowCount() )
{
memberDataMapper->toNext();
setRecordCounter();
}
member_data_entry::setRecordCounter() looks like this:
void member_data_entry::setRecordCounter()
{
ui->txtRecordNum->
setText( QString::number( memberDataMapper->currentIndex() ) );
return;
}
It returns 255 when I'm on the "last" record, which makes sense given zero-
based counting, but doesn't make sense given that there are 3100 records in
the table.
Any help would be greatly appreciated.
----
Bill Lugg
Milstar Software Support
Peterson AFB, CO
No Micro$oft products were used to create this email.
God rules and if He needed a computer it would run Linux!
On Saturday 06 February 2010 02:50:31 pm Robert Wood wrote:
> William Lugg wrote:
> > In the DB app I'm working on, when I query the model for the row count
> > it claims it only contains 256 rows, though SQLite and a GUI browser I
> > use to look at the DB both verify that there are actually upwards of
> > 3100 rows in the table. What do I need to do in my code to get at the
> > rest of the data?
> >
> > The problem is two fold - I need my record counter to report the total
> > number of records and I need to be able to navigate to those records
> > when the user wants to go there.
>
> Not sure how much sqllite differs from mysql, but how are you querying
> the size of the database? Can we have a peek at the relevant line of
> code please?
>
> This works for me in mysql in that it does return the number of rows in
> the table:
>
> QSqlQuery query;
> quint32 rows;
> QString queryString;
>
> queryString = "SELECT * FROM tablename"
> query.exec(queryString);
> rows = query.size();
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