程序代码：

public void updateQuestions()
{
    try
    {
        foreach (Control c in editQuestionsPanel.Controls)
        {
            if (c is TextBox)
            {
                TextBox questionTextBox = (TextBox)c;

                string question = questionTextBox.Text;

                writeNewQuestionToTblQuestions(question);
            }
        }
    }
    catch (Exception err)
    {
        Console.WriteLine(err.Message);
    }
}