QTableWidget with many cellwidgets update very slow!

I have a QTablWidget which has 10 columns and about 100-200 rows. Every row has 3 cellwidgets of QLabel type.
The problem is the qtablewidget udpate very slow, taking more than 5 seconds.
I want the update quickly.
How can I improve its performance??
ThankS!

Don't use cell widgets.

I want to implement customized drag and drop for item in qtablewidget, so I use qlabel as cellwidget.
If no use cellwidget, then what to use?

Quote:

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Originally Posted by linxs

I want to implement customized drag and drop for item in qtablewidget, so I use qlabel as cellwidget.
If no use cellwidget, then what to use?

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You don't need cell widgets to have custom drag and drop. QTableWidget already offers required facilities. Even more is offered if you use a proper model-view approach (i.e. QTableView nad QAbstractTableModel subclass instead of QTableWidget).

Thanks!

Where can I find a simple expample of QTableView which implement drag and drop?
I googled, but not found.