Choose directory from combobox and list subdirectories in textedit

[Kinesis]

I am trying to list all subdirectories which are inside a directory(which is chosen from combobox). Now I can show list of directories in combobox . I want to select one of those directory and list every sub-dirs( inside this selected dir) in textedit.
I don't know how can I list the subdirectories when I choose a directory from combobox.Here is my current code.

 QDir directory = QFileDialog::getExistingDirectory(this, tr("Open  Directory"),"/home", QFileDialog::ShowDirsOnly| QFileDialog::
DontResolveSymlinks);

    ui->comboBox->setMinimumWidth(500);
    QStringList files = directory.entryList(QDir::Files);
    ui->comboBox->addItems(files);

[aha_1980]

Hi @Kinesis,

just connect a slot to the combo box currentTextChanged signal.

Regards

[Kinesis]

@aha_1980
I tried my code as U said but i don't know how can I get current directory in combobox to list in textEdit.Please show me the way. Here is the modified code.

void Combo_box::on_pushButton_clicked()
{
    QDir directory = QFileDialog::getExistingDirectory(this, tr("Open Directory"),"/home",
                     QFileDialog::ShowDirsOnly| QFileDialog::DontResolveSymlinks);

    ui->comboBox->setMinimumWidth(500);
    for(const QFileInfo & finfo: directory.entryInfoList()){
    ui->comboBox->addItem(finfo.absoluteFilePath());
    auto textEdit = new QTextEdit();

    //connect(ui->comboBox, &QComboBox::currentTextChanged, ui->textEdit, &QTextEdit::append);
    connect(ui->comboBox, &QComboBox::currentTextChanged,[ textEdit,this]{
        QDirIterator it(directory,QDir::AllEntries | QDir::NoDotAndDotDot, QDirIterator::Subdirectories);

        ui->textEdit->setText("");
        while (it.hasNext())
        {
           ui->textEdit->append(it.next());

        }
   
        });
    }
}

[aha_1980]

Hi @Kinesis,

currentTextChanged(const QString &text) has the new text already as parameter, you need to capture it in your lambda:

connect(ui->comboBox, &QComboBox::currentTextChanged,[textEdit,this](const QString &selectedDirectory) {
        QDirIterator it(selectedDirectory,QDir::AllEntries | QDir::NoDotAndDotDot, QDirIterator::Subdirectories);

        ui->textEdit->clear();
        while (it.hasNext())
        {
           ui->textEdit->append(it.next());

        }
   
        });

You will of course need to work on your code in the lambda. I have not checked it.

[Kinesis]

@aha_1980
It works ! Thanks alot
:)