My app is phonebook(educational purposes). When user opens application, QTableWidged is filled with data loaded from .xml file. When user add new phone number, I would like to append this number to QTableWidget, but previously I setRowCount to current value, and now it is one row to little. How can I solve this problem?
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3 Answers
Doing something like this should work:
tableWidget->insertRow( tableWidget->rowCount() );
This will append a row to the end of your table. You can use the insertRow() function to insert new rows into the middle of your table as well.
Comments
To extend @Chris' answer and provide additional information:
If you want to add data (i.e. push_back and fill a new row):
tableWidget->insertRow ( tableWidget->rowCount() );
tableWidget->setItem ( tableWidget->rowCount()-1,
yourColumn,
new QTableWidgetItem(string));
// repeat for more columns
If you know the number of rows and columns in advance:
ui->tableWidget->clear();
ui->tableWidget->setRowCount(numRows);
ui->tableWidget->setColumnCount(numColumns);
for (auto r=0; r<numRows; r++)
for (auto c=0; c<numColumns; c++)
tableWidget->setItem( r, c, new QTableWidgetItem(stringData(r,c)));
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If you are using Python + PyQt5
from PyQt5 import QtCore, QtWidgets
# table is a QtWidgets.QTableWidget object
table.insertRow(table.rowCount())
item = QtWidgets.QTableWidgetItem(ITEM_CONTENT)
table.setItem(table.rowCount()-1, COLUMN_INDEX, item)
item = QtWidgets.QTableWidgetItem(ROW_LABEL_STRING)
table.setVerticalHeaderItem(table.rowCount()-1, item)
