QTableWidget row insertion and set width of each column?

[darpan]

Hi,
I placed a QTableWidget on a form and i created three columns in this table widget through QT Designer and now want to add rows in this table widget through coding.

My problems are:-
(1) How to add rows in this table widget through coding.
(2) How to set width of each column through QT Designer and through coding.

Thanks and regards

[vratojr]

Hi,
1) Try insertRow(),
2) If I'm not wrong you have to set the width of the horizontal header to have all the column to resize.

Simone

[jpn]

(1) How to add rows in this table widget through coding.

Something like this:

int row = tableWidget->rowCount(); // current row count
tableWidget->setRowCount(row+1); // add one row
// create items in all added cells
for (int col = 0; col < tableWidget->columnCount(); ++c)
{
    QTableWidgetItem* newItem = new QTableWidgetItem("blaa");
    tableWidget->setItem(row, col, newItem);
}

int row = tableWidget->rowCount(); // current row count
tableWidget->setRowCount(row+1); // add one row
// create items in all added cells
for (int col = 0; col < tableWidget->columnCount(); ++c)
{
    QTableWidgetItem* newItem = new QTableWidgetItem("blaa");
    tableWidget->setItem(row, col, newItem);
}

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(2) How to set width of each column through QT Designer and through coding.

to access headers:

• QTableView::horizontalHeader()
• QTableView::verticalHeader()

to resize:

• QHeaderView::resizeSection()
• QHeaderView::setStretchLastSection()
• QHeaderView::setResizeMode()
• ...

[darpan]

Hi,
I read the following functions but can't get how to set width of each column in QTreeWidget through QT Designer and through coding.

to access headers:
QTableView::horizontalHeader()
QTableView::verticalHeader()

to resize:
QHeaderView::resizeSection()
QHeaderView::setStretchLastSection()
QHeaderView::setResizeMode()
...

Please give some code example to set the width of QTreeWidget Column.

Thanks and Regards

[jpn]

I thought it was QTableWidget..

#include <QHeaderView>
QTreeWidget* treeWidget = ...;
treeWidget->header()->resizeSection(0, 20); // column 0, width 20
 
QTableWidget* tableWidget = ...;
tableWidget->horizontalHeader()->resizeSection(1, 50); // column 1, width 50
tableWidget->verticalHeader()->resizeSection(2, 15); // row 2, height 15

#include <QHeaderView>
QTreeWidget* treeWidget = ...;
treeWidget->header()->resizeSection(0, 20); // column 0, width 20

QTableWidget* tableWidget = ...;
tableWidget->horizontalHeader()->resizeSection(1, 50); // column 1, width 50
tableWidget->verticalHeader()->resizeSection(2, 15); // row 2, height 15

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[darpan]

Hi,
First of all sorry , you are right, it was QTableWidget. I had to set width of Each column of QTable Widget.
I also have requirement to delete all rows created through following lines:-
row = tableWidget->rowCount(); // current row count
tableWidget->setRowCount(row+1); // add one row
I am able to clear the whole QTableWidget but how i can delete all the rows created through setRowCount(row+1).


Thanks and Regards

[derrickbj]

You can always use QTableView::setColumnWidth() and call this both when your widget class is initialized and/or after your data loads.

For removing the rows, tableWidget->removeRow(row+1) ??