How to pass QString or QStringList to QTableWidgetItem - c++

Question

I am trying to create a table using QTableView and QTableWidgetItem.
Basically I am trying to create a few rows with some name under first Header.
But the problem is I am passing each row with some name.
Same thing I want to achieve using QString, QStringList array.
Currently I am not passing any value under second header.
Please suggest how to do that. Please find the output window.
Below is my code snippet:
#include <QApplication>
#include <QtGui>
#include <QMainWindow>
#include <QTableWidget>
#include <QString>
#define ROW_NUMBER 20
#define COL_NUMBER 2
int main(int argc , char **argv)
{
QApplication app(argc,argv);
QMainWindow *window = new QMainWindow();
window->setWindowTitle(QString::fromUtf8("TableWidget Resize column width"));
window->resize(200,250);
QTableWidget *table = new QTableWidget();
table->setRowCount(ROW_NUMBER);
table->setColumnCount(COL_NUMBER);
table->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Expanding);
table->setHorizontalHeaderLabels(QString("Field;Value").split(";"));
table->setItem(0,0,new QTableWidgetItem("Sequence Number"));
table->setItem(1,0,new QTableWidgetItem("Date"));
table->setItem(2,0,new QTableWidgetItem("Seconds"));
table->setItem(3,0,new QTableWidgetItem("Source Date"));
table->setItem(4,0,new QTableWidgetItem("Source Time"));
table->setItem(5,0,new QTableWidgetItem("ServiceType"));
table->setItem(6,0,new QTableWidgetItem("Transtype"));
table->setItem(7,0,new QTableWidgetItem("UserId"));
table->setItem(8,0,new QTableWidgetItem("UserIMSI"));
table->setItem(9,0,new QTableWidgetItem("CorrelationId"));
table->setItem(10,0,new QTableWidgetItem("MajorNumber"));
table->setItem(11,0,new QTableWidgetItem("MinorNumber"));
table->setItem(12,0,new QTableWidgetItem("Source Type"));
table->setItem(13,0,new QTableWidgetItem("Total Consume"));
table->setItem(14,0,new QTableWidgetItem("Source Info"));
table->setItem(15,0,new QTableWidgetItem("Event"));
table->setItem(16,0,new QTableWidgetItem("GroupID"));
table->setItem(17,0,new QTableWidgetItem("ServiceID"));
table->setItem(18,0,new QTableWidgetItem("OperatorId"));
table->setItem(19,0,new QTableWidgetItem("Options Array"));
table->resizeColumnsToContents();
window->setCentralWidget(table);
window->show();
return app.exec();
}

Answer 1

QString test;
test = "a";
// First Column
table->setItem(0,0,new QTableWidgetItem(a));
// Second Column
table->setItem(0,1,new QTableWidgetItem(a));
just like that or:
// 100% working example
QVector< QString > string;
QVector< QString > value;
string.append( "Nr1" );
string.append( "Nr2" );
string.append( "Nr3" );
string.append( "Nr4" );
value.append( "1" );
value.append( "2" );
value.append( "3" );
value.append( "4" );
ui->twTable->setSortingEnabled( false );
for( int i = 0 ; i < string.size( ) && i < value.size( ) ; ++i )
{
ui->twTable->insertRow( 0 );
// First Column
ui->twTable->setItem( 0 , 0 , new QTableWidgetItem( string[i] ) );
// Second Column
ui->twTable->setItem( 0 , 1 , new QTableWidgetItem( value[i] ) );
}
ui->twTable->setSortingEnabled( true );
array , QStringList work the same way just without the append.
array:
QString str[5] = { "a" , "b" , "c" , "d" , "e" };
for( int i = 0 ; i < 5 ; ++i )
{
ui->twTable->insertRow( 0 );
// First Column
ui->twTable->setItem( 0 , 0 , new QTableWidgetItem( str[i] ) );
// Second Column
ui->twTable->setItem( 0 , 1 , new QTableWidgetItem( str[i] + QString::number( i ) ) );
}
QStringList:
QStringList str = { "a" , "b" , "c" , "d" , "e" };
for( int i = 0 ; i < 5 ; ++i )
{
ui->twTable->insertRow( 0 );
// First Column
ui->twTable->setItem( 0 , 0 , new QTableWidgetItem( str[i] ) );
// Second Column
ui->twTable->setItem( 0 , 1 , new QTableWidgetItem( str[i] + QString::number( i ) ) );
}
And in reverse order:
// Probably the output you want:
QString str[5] = { "a" , "b" , "c" , "d" , "e" };
for( int i = 4 ; i >= 0 ; --i )
{
ui->twTable->insertRow( 0 );
// First Column
ui->twTable->setItem( 0 , 0 , new QTableWidgetItem( str[i] ) );
// Second Column
ui->twTable->setItem( 0 , 1 , new QTableWidgetItem( str[i] + QString::number( i ) ) );
}
Remove the ui->twTable->insertRow( 0 ) when you're using a fixed amount of rows like you do in your code.
Side note: I tend to disable sorting while inserting items and enabling it after so the rows don't get auto sorted to a different position when you input them.