problem to use the QItemDelegate

[mashi]

Hi,
I have a problem to use the QItemDelegate:

I have a QTableView and an QAbstractTableModel associated.
Inside some cells of the table I set a custom ItemDelegate using a combobox.

Sometimes when I select quickly a field of the combobox , the setModelData method of the delegate is not called and the corresponding cell remains empty.

Conversely, If I select a field in the combobox slowly this problem does not occur.

Someone can help me??

Thank you and sorry for my bad english.

[wysota]

How do you "select quickly"?

[mashi]

Maybe is necessary a clarification:

the problem is appears when I tried to show the combobox at first click on cell of table;
in standard condition instead, I need to two clicks for show the combobox:

one click for the focus on the cell
the second one for show the combobox

To enable the display of the combobox with a single click, each time that I click on a cell, I call the method openPersistentEditor(),
passing the QModelIndex given by click event.
obviously when I click on another cell, I close the persistent editor preceding opened and so forth.

The interactions to do "quickly" and that show an problem are the following:

1) the first click on the cell for shows of the combobox;
2) the second click for expands the combobox
3) the third click for selects an item of the combobox (generally the second element)

When I lost focus on the cell, sometimes (3/10 in average) leaves the cell selection resulting empty

If I do this interactions "slowly" the problem doesn't happens.

with "quick selection" i meant: hitting three times the mouse button in rapid succession, as fast as I can
with "slow selection" i meant: as the quick one, but leaving half a second between clicks

NB: If I remove the "ONE CLICK" function the problem doesn't happens.


Thanks
Diego.

[thomas@itest]

hi,

why not using QAbstractItemView::setItemDelegate ?

[wysota]

To enable the display of the combobox with a single click, each time that I click on a cell, I call the method openPersistentEditor()

And why not QAbstractItemView::edit()?

[mashi]

thanks a lot, with QAbstractItemView::edit() i have resolve my problem!!