questions.aspx.cs

一个简单的在线考试程序

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class questions : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        //避免直接访问此页面，定位回登录页面。
        if (Session["UserName"] == null) Response.Redirect("default.aspx");
        questionDetails.DataBind();
    }

    protected void nextButton_Click(object sender, EventArgs e)
    {
        //保存按下一题前所选择的答案
        System.Data.DataRowView dr = (System.Data.DataRowView)questionDetails.DataItem;

        //创建答案对象保存数据
        Answer a = new Answer();
        a.QuestionID = dr["QuestionOrder"].ToString();
        a.CorrectAnswer = dr["CorrectAnswer"].ToString();
        a.UserAnswer = answerDropDownList.SelectedValue.ToString();

        ArrayList al = (ArrayList)Session["AnswerList"];
        al.Add(a);

        Session.Add("AnswerList", al);

        if (questionDetails.PageIndex == questionDetails.PageCount - 1)
        {
            // 答题完毕查看结果
            Response.Redirect("results.aspx");
        }
        else 
        {
            questionDetails.PageIndex++;
        }

        if (questionDetails.PageIndex == questionDetails.PageCount - 1)
        {
            nextButton.Text = "完成";
        }

    }
}