Qtreewidget not updating data

[phillip_Qt]

Hi All
I'm writing an application where i'm using tree widget. if i click on the treewidget an input dialog is poping up and asking to enter a string. i need to update that string in treewidget. Below is my code. But its not updating in tree widget. Can ny body help me.

bool b;  
QString name = QInputDialog::getText( this,
                    tr( "New name" ),
                    tr( "Please enter the name " ),
                    QLineEdit::Normal, tr( "New classroom" ), &b);
 
    if(b && !name.isEmpty())
    {
	QStringList strlist;
        strlist.push_back(classroom_name);
        QTreeWidgetItem temptreelst(strlist);
        m_name.append(&temptreelst); //QList<QTreeWidgetItem *> m_name is to colect the list of names and  amember variable
        ui->treeWidget->addTopLevelItem(&temptreelst);
        ui->treeWidget->expandAll();
 
    }

bool b;  
QString name = QInputDialog::getText( this,
                    tr( "New name" ),
                    tr( "Please enter the name " ),
                    QLineEdit::Normal, tr( "New classroom" ), &b);

    if(b && !name.isEmpty())
    {
	QStringList strlist;
        strlist.push_back(classroom_name);
        QTreeWidgetItem temptreelst(strlist);
        m_name.append(&temptreelst); //QList<QTreeWidgetItem *> m_name is to colect the list of names and  amember variable
        ui->treeWidget->addTopLevelItem(&temptreelst);
        ui->treeWidget->expandAll();

    }

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Thank u all.

[Lykurg]

First, in your code you don't use the asked string name. Second, create your QTreeWidgetItem on the heap, because else it gets deleted after the scope.

[phillip_Qt]

First, in your code you don't use the asked string name. Second, create your QTreeWidgetItem on the heap, because else it gets deleted after the scope.

thank u for quick response. there was ll mistake in the code. Below i've posted the code.

bool b;  
QString name = QInputDialog::getText( this,
                    tr( "New name" ),
                    tr( "Please enter the name " ),
                    QLineEdit::Normal, tr( "New classroom" ), &b);
 
    if(b && !name.isEmpty())
    {
    QStringList strlist;
        strlist.push_back(name );
        QTreeWidgetItem temptreelst(strlist);
        m_name.append(&temptreelst); //QList<QTreeWidgetItem *> m_name is to colect the list of names and  amember variable
        ui->treeWidget->addTopLevelItem(&temptreelst);
        ui->treeWidget->expandAll();
 
    }

bool b;  
QString name = QInputDialog::getText( this,
                    tr( "New name" ),
                    tr( "Please enter the name " ),
                    QLineEdit::Normal, tr( "New classroom" ), &b);
 
    if(b && !name.isEmpty())
    {
    QStringList strlist;
        strlist.push_back(name );
        QTreeWidgetItem temptreelst(strlist);
        m_name.append(&temptreelst); //QList<QTreeWidgetItem *> m_name is to colect the list of names and  amember variable
        ui->treeWidget->addTopLevelItem(&temptreelst);
        ui->treeWidget->expandAll();
 
    }

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temptreelst is QTreeWidgetItem object. But still its nt updating.