Solved::How Send All of QTableWidget to QList (foreach loop)
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Hello Everyone
i had a file and when open it with my program, i send every line of it to a row in QTableWidget
after that, i want to check all of lines and for that, i need a foreach
in this case, i have 5 columns and some rows and want to check all of rows in column 1 with an if statement.
also need to keep other columns, so if, the if statement is true,* column 2 *of the row printed!
(it works if use: @QList<QTableWidgetItem *item = ui->tableWidget->selectedItems@but i want works for every items, not just selected items!)
i know its a little complicated, but you know what i saying.
so, anyone knows how to do it?
(i do it in c# and could use @foreach(listviewitem *item in mylist)@and with an if, it check everyline so easy.
in qt, i have know idea how do it!)
thanks everybody -
Hi,
You could iterate over the tablewidget using for loop, get the pointer to "item":http://qt-project.org/doc/qt-5/qtablewidget.html#item and add it to the list.
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[quote author="p3c0" date="1414251749"]Hi,
You could iterate over the tablewidget using for loop, get the pointer to "item":http://qt-project.org/doc/qt-5/qtablewidget.html#item and add it to the list.[/quote]
thanks
actually i used for loop, but i had to write to many lines and 2-3 for loop with 4-5 Qlist!
so i want something easier and lighter.
but if i couldn't use foreach loop, i had to use the old one -
Hi,
Do you mean something like:
@
QList<QTableWidgetItem*> itemList;
for (int row = 0 ; row < tableWidget->rowCount() ; ++row) {
for (int col = 0 ; col < tableWidget->columnCount() ; ++col) {
itemList << tableWidget->item(row, col);
}
}
foreach (QTableWidgetItem * item, itemList) {
// do something
}
@?
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[quote author="SGaist" date="1414271622"]Hi,
Do you mean something like:
@
QList<QTableWidgetItem*> itemList;
for (int row = 0 ; row < tableWidget->rowCount() ; ++row) {
for (int col = 0 ; col < tableWidget->columnCount() ; ++col) {
itemList << tableWidget->item(row, col);
}
}
foreach (QTableWidgetItem * item, itemList) {
// do something
}
@?
[/quote]yes, thank you
its better. but still foreach has to works better than that in a IDE like QtCreator!!! -
What do you mean by that ?
foreach is designed to work with data containers. A QTableWidget is not that kind of container
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like i said before, i worked with c# and foreach in c# works with every kind of data.
like the example i used in 1# post.
but qt has some limits, like before using foreach we have send data to a Qlist and for me, this is a limit! -
c# foreach works on enumerable types. A QTableWidget doesn't fit that description, it's a widget on top of a model.
The example you used is just a function that generates a QList of QTableWidgetItem*.
