Application crashes if no there selected row on a qtablewidget

Code:

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QVariant row = ui...._tableWidget->currentRow();
if (row.toBool()) {
	atual_row = row.toInt();
...

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or

Code:

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if (ui...._tableWidget->currentRow()) {
...

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It´s crasshing my application if no row is selected on qtablewidget. The copilation is ok.

Alternativily, how to known if some row is selected or no on qtablewidget?

I use Qt 4.1.3, MingW, Windows XP.

"current" and "selected" is not the same. You are not checking the selection here.

If I select a item on qtablewidget, the currentRow() function returns the number of row selected, or of the current row? Or not?

I just want to know if some row or item is selected on table. The solution in my code is crasshing on execution. The code is in a custom slot function connected with a pushbutton. When I click the button, if no item or row of the table is selected, crashes, if there selection, works ok.

Quote:

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Originally Posted by marcelrc

If I select a item on qtablewidget, the currentRow() function returns the number of row selected, or of the current row? Or not?

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"Current" item is the one which has the keyboard focus (thus there is always a "current row" if the widget has focus). "Selected" item is an item, which is highlighted by a changed background in most widget styles. There can be many selected items but only one current item.

Quote:

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I just want to know if some row or item is selected on table. The solution in my code is crasshing on execution. The code is in a custom slot function connected with a pushbutton. When I click the button, if no item or row of the table is selected, crashes, if there selection, works ok.

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Use QTableWidget::selectedItems() to retrieve a list of selected items. If the list is empty, no items are selected.

:D
Thak you very much wysota! It's solved my problem!
You are fast to response.
I think you was hired by somebody only to response this forum. Is this your job?

Quote:

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Originally Posted by marcelrc

I think you was hired by somebody only to response this forum. Is this your job?

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No, I do it in my free time (although I don't have much time free now).