update treewidget element value

[nowire75]

hi,

I have this question: I have a two-dimensional array of variable names and variable values. I have make a treewidget with two colums: names and values.
I want update the variables values any second (or more). Same time also the number of variables changed.
I write this code, it work but I things is not the correct way

for(int i=0;i<robotvar->getElementsNumber();i++){
  QTreeWidgetItem *item = treeWidget->topLevelItem(row);
    if(item->childCount() != robotvar->getElementsNumber()){
	QTreeWidgetItem *child = new QTreeWidgetItem(item);
	child->setText(0,robotvar->getStructureMember(i));
	child->setText(1,robotvar->getStructureValue(i,datatype));
	}
    else{
	QTreeWidgetItem *child = item->child(i);
        child->setText(1,robotvar->getStructureValue(i,datatype));
    }
}

for(int i=0;i<robotvar->getElementsNumber();i++){
  QTreeWidgetItem *item = treeWidget->topLevelItem(row);
    if(item->childCount() != robotvar->getElementsNumber()){
	QTreeWidgetItem *child = new QTreeWidgetItem(item);
	child->setText(0,robotvar->getStructureMember(i));
	child->setText(1,robotvar->getStructureValue(i,datatype));
	}
    else{
	QTreeWidgetItem *child = item->child(i);
        child->setText(1,robotvar->getStructureValue(i,datatype));
    }
}

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