addexamination.aspx.cs

本在线考试系统采用了面向对象的分析和设计

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 ExaminationSystem.BLL.Domain;
using ExaminationSystem.BLL.Service;

public partial class Teacher_AddExamination : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            BindClassList();
            BindSubjectList();
        }
    }
    private void BindClassList()
    {
        ClassListBox.DataSource = new ClassService().GetAll();
        ClassListBox.DataTextField = "Name";
        ClassListBox.DataValueField = "ID";
        ClassListBox.DataBind();
    }
    private void BindSubjectList()
    {
        SubjectDropDownList.DataSource = new SubjectService().GetAll();
        SubjectDropDownList.DataTextField = "Name";
        SubjectDropDownList.DataValueField = "ID";
        SubjectDropDownList.DataBind();
        if (SubjectDropDownList.Items.Count > 0)
            SubjectDropDownList.SelectedIndex = 0;
        BindStrategyList();
    }
    private void BindStrategyList()
    {
        if (SubjectDropDownList.Items.Count == 0)
            return;
        Subject subject = new SubjectService().GetById(long.Parse(SubjectDropDownList.SelectedValue));
        StrategyDropDownList.DataSource = subject.PaperStrategys;
        StrategyDropDownList.DataTextField = "Name";
        StrategyDropDownList.DataValueField = "ID";
        StrategyDropDownList.DataBind();
    }
    protected void AddExaminationButton_Click(object sender, EventArgs e)
    {
        string name = ExminationNameTextBox.Text;
        string[] date = ExaminationDateTextBox.Text.Split(new char[] { '-' });
        DateTime startTime;
        DateTime endTime;
        try
        {
             startTime = new DateTime(int.Parse(date[0]), int.Parse(date[1]), int.Parse(date[2])
                , int.Parse(StartHourTextBox.Text), int.Parse(StartMinuteTextBox.Text), 0);
             endTime = new DateTime(int.Parse(date[0]), int.Parse(date[1]), int.Parse(date[2])
                , int.Parse(EndHourTextBox.Text), int.Parse(EndMinuteTextBox.Text), 0);
        }
        catch
        {
            Label1.Text = "日期格式不正确!";
            return;
        }

        int lateMinutes = int.Parse(LateMinutesTextBox.Text);
        int submitMinutes = int.Parse(SubmitMinutesTextBox.Text);

        Examination exam = new Examination();
        exam.Name = name;
        exam.StartTime = startTime;
        exam.EndTime = endTime;
        exam.LateMinutes = lateMinutes;
        exam.PermitSubmitMinutes = submitMinutes;
        exam.PaperStrategy = new PaperStrategyService().GetById(long.Parse(StrategyDropDownList.SelectedValue));

        foreach (ListItem item in AttendListBox.Items)
        {
            if (item.Selected == true)
            {
                exam.AttendClasses.Add(new ClassService().GetById(long.Parse(item.Value)));
            }
        }
        if (exam.AttendClasses.Count == 0)
        {
            Label1.Text = "考试必需有班级参加！";
            return;
        }
        new ExaminationService().Save(exam);
        Label1.Text = "添加成功！";

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        AttendListBox.Items.Add(ClassListBox.SelectedItem);
    }

    protected void Button2_Click(object sender, EventArgs e)
    {
        AttendListBox.Items.Remove(AttendListBox.SelectedItem);
    }
    protected void SubjectDropDownList_SelectedIndexChanged(object sender, EventArgs e)
    {
        BindStrategyList();
    }
}