在datalist中加入自定义的按钮后如何访问datalist中控件的内容，方法是使用datalist的itemcommand事件，代码如下：

protected void dlQuestion_ItemCommand(object source, DataListCommandEventArgs e)

Answer anw = new Answer();
Answer_DA anw_da = new Answer_DA();

Label lblQuestionId = (Label)e.Item.FindControl("lblQuestionId");
TextBox tbAnswerContent = (TextBox)e.Item.
FindControl("tbAnswerContent");
anw.QuestionId = Convert.ToInt32(lblQuestionId.Text);
anw.AnswerContent = tbAnswerContent.Text;
anw.AnswerDate = PublicData.get_date();
anw.AnswerTime = PublicData.get_time();

anw_da.add_answer(anw);

Response.Redirect("SalesManManagement.aspx");