Not able to remove the root of the tree widget.

[aurora]

hi all,
i added root tree widget item dynamically,
when i tried to access, i can its name but when i tried to remove that root with specified name, the effect was not reflecting in window...
Please tell me what i'm missing here...

void MainWindow::RemoveTreeRoot(QString Filename)
{
 
    QList<QTreeWidgetItem *>TempRoot=ui->treeWidget_FilesSelected->findItems(Filename,Qt::MatchExactly,0);
    foreach (QTreeWidgetItem *temp,TempRoot)
    {
        cout<<"ITS FOUND!!!!!!!!!!!!!!!!"<<endl;
        std::cout<<"remove:"<<temp->text(0).toStdString()<<endl; ///PRINTING CORRECT NODE NAME....
                   ui->treeWidget_FilesSelected->removeItemWidget(temp,0);   //  <----This effect not reflecting in mainwindow while executing
 
    }
    }

void MainWindow::RemoveTreeRoot(QString Filename)
{
   
    QList<QTreeWidgetItem *>TempRoot=ui->treeWidget_FilesSelected->findItems(Filename,Qt::MatchExactly,0);
    foreach (QTreeWidgetItem *temp,TempRoot)
    {
        cout<<"ITS FOUND!!!!!!!!!!!!!!!!"<<endl;
        std::cout<<"remove:"<<temp->text(0).toStdString()<<endl; ///PRINTING CORRECT NODE NAME....
                   ui->treeWidget_FilesSelected->removeItemWidget(temp,0);   //  <----This effect not reflecting in mainwindow while executing

    }
    }

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