private void btnAnswerQuestion_Click(object sender, RoutedEventArgs e)
{
// 打开子窗体
AnswerQuestion newAnswerQuestion = new AnswerQuestion();
newAnswerQuestion.Show();
// 隐藏自己(父窗体)
this.Visibility = System.Windows.Visibility.Hidden;
}
//查看答疑的按钮，点击进入答疑区
private void btnAnswerQuestion_Click(object sender, RoutedEventArgs e)
{
AnswerQuestion newAnswerQuestion = new AnswerQuestion(lbNotTitle.Content.ToString(), tbTeacherInfo1.Text, notId); //这里有问题
loadQuestionAndAnswer(notId, newAnswerQuestion); //加载疑问和回答
newAnswerQuestion.btnSubmitQuestion.Visibility = Visibility.Hidden;
newAnswerQuestion.Show();
// this.Visibility = System.Windows.Visibility.Hidden;
}