Exam/StudentIndex.aspx.cs

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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;
using OnLineExam.BusinessLogicLayer;
public partial class Web_StudentIndex : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            InitData();//初始化科目列表框
            ScoreInitData();  //初始化成绩
            labUser.Text = Session["userID"].ToString();
            Users user = new Users();
            string userid = Session["userID"].ToString();
            user.LoadData(userid);
            lblName.Text = user.UserName;
        }
    }
    //初始化考试科目下拉列表框
    protected void InitData()
    {
        Paper paper = new Paper();              //创建Paper对象
        DataSet ds = paper.QueryPaper();        //查询所有可用试卷
        if (ds.Tables[0].Rows.Count >= 1)
        {
            ddlPaper.DataSource = ds;           //指名考试科目列表框数据源
            ddlPaper.DataTextField = "PaperName";   //DataTextField显示Name字段值
            ddlPaper.DataValueField = "PaperID";    //DataValueField显示ID字段值
            ddlPaper.DataBind();                //绑定数据
           
        }
        else
        {
            ddlPaper.Enabled = false;
            Button1.Enabled = false;
            lblMessage.Text = "没有试卷！";
        }
    }
    protected void ScoreInitData()//初始化成绩
    {
        Scores score = new Scores();        //创建Scores对象       
        DataSet ds = score.QueryUserScore(Session["userID"].ToString());
        if (ds.Tables[0].Rows.Count > 0)
        {
            GridView1.DataSource = ds;          //为GridView控件指名数据源        
            GridView1.DataBind();               //绑定数据
        }
        else
        {
            lblScore.Text="没有成绩!";
        }
    }