填充 aspx 页上的多个文本框，直到通用列表循环遍历

aspx 页上填充固定数量的文本框的好方法是什么，直到泛型列表被循环访问并填充了它可以填充的所有空文本框？

我现在有以下内容，但如果列表中的答案较少，那么有文本框，我会得到一个 outOfBoundException。

else if(!IsPostBack) {
    Groups group = new Groups();
    List<Answers> AnswerList = new List<Answers>();
    //Get the group since the session isn't null
    group = group.getGroupbyId(int.Parse(Session["group_Id"].ToString()));
    //Get the list of answers of the group
    AnswerList = Answers.retrieveAnswersBygroupIdandPageNumber(group.Group_Id, pageNumberLab);
    if (AnswerList.Count != 0) {
        while (TextAnswerNumber < AnswerList.Count) {
            ContentPlaceHolder cph = (ContentPlaceHolder)Master.FindControl("ContentPlaceHolder1");
            foreach (Control control in cph.Controls) {
                if (control is Panel) {
                    Panel panel = (Panel)control;
                    foreach (Control controlInPanel in panel.Controls) {
                    //If the control is a textbox
                    if (controlInPanel is TextBox && controlInPanel.ID.Contains("txtAnswer")) {
                        //And if the control ID containst txtAnswer                                    
                        //IMPORTANT: If next programmer adds another textbox for an answer textbox the ID must be in the form txtMember*".
                        TextBox answerTextBox = (TextBox)controlInPanel;
                        // Check if the textbox is empty
                        if (answerTextBox.Text == "") {
                            //If it is, fill it with the answer that group filled in when it previously answered this question.
                            answerTextBox.Text = AnswerList[TextAnswerNumber].Answer;
                            answerTextBox.ReadOnly = true;
                            TextAnswerNumber++;
                        }
                    }
                }
            }
        }
    }
}
            }