[How to ?] Writing QTableWidget cells.

[Rewo]

Thanks, it helped. But I have one more problem.

I tried to apply that:

QTableWidgetItem *itab = new QTableWidgetItem;
itab -> setText("X");
for(int a=0;a<irows;a++)
     for(int b=0;b<icols;b++) {
         tableWidget->setItem(a, b, itab);
     }

QTableWidgetItem *itab = new QTableWidgetItem;
itab -> setText("X");
for(int a=0;a<irows;a++)
     for(int b=0;b<icols;b++) {
         tableWidget->setItem(a, b, itab);
     }

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Filling "X" works only for (0,0) cell, while running program, there is statement in compiling console:

"QTableWidget: cannot insert an item that is already owned by another QTableWidget"

If I have 4x3 table, this statement appears 4x3-1=11 times.

I tried to make an "itab" array, but it failed.

I think that itab needs some release from cell, but dunno how to do that.

________

EDIT 2 minutes later:

I did that:

for(int a=0;a<irows;a++)
        for(int b=0;b<icols;b++) {
            QTableWidgetItem *itab = new QTableWidgetItem;
            itab -> setText("X");
            tableWidget->setItem(a, b, itab);
        }

for(int a=0;a<irows;a++)
        for(int b=0;b<icols;b++) {
            QTableWidgetItem *itab = new QTableWidgetItem;
            itab -> setText("X");
            tableWidget->setItem(a, b, itab);
        }

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And it works for me .

[john_god]

Please let me make a sugestion, if you plan to fill the table more than once, use the following code to avoid duplicating items

for(int a=0;a<irows;a++)
    for(int b=0;b<icols;b++){
 
    if (tableWidget->itab(a,b) == 0)
    {
        QTableWidgetItem *itab = new QTableWidgetItem;
        itab->setText("X");
        tableWidget->setItem(a,b, itab);
    }
    else
    {
        tableWidget->item(a, b)->setText("X");
    }
 
}

for(int a=0;a<irows;a++)
    for(int b=0;b<icols;b++){

    if (tableWidget->itab(a,b) == 0)
    {
        QTableWidgetItem *itab = new QTableWidgetItem;
        itab->setText("X");
        tableWidget->setItem(a,b, itab);
    }
    else
    {
        tableWidget->item(a, b)->setText("X");
    }

}

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