DesktopModules/Course/AddCourse.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 System.Data.SqlClient;
using StudentManager;

public partial class AddCourse : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
		if (!Page.IsPostBack)
		{
			///绑定控件的数据			
			BindTeacherData();
		}

		///设置按钮的可用性
		AddBtn.Enabled = TeacherList.Items.Count > 0 ? true : false;
	}	

	private void BindTeacherData()
	{
		///定义获取数据的类
		Teacher teacher = new Teacher();
		SqlDataReader rect = teacher.GetTeachers();

		///设定控件的数据源
		TeacherList.DataSource = rect;

		///设定控件的Text属性和Value属性
		TeacherList.DataTextField = "Name";
		TeacherList.DataValueField = "TeacherID";

		///绑定控件的数据
		TeacherList.DataBind();

		///关闭数据读取器和数据库的连接
		rect.Close();
	}

	protected void AddBtn_Click(object sender,EventArgs e)
	{
		///如果页面输入内容合法
		if (Page.IsValid == true)
		{
			///定义类
			StudentManager.Course course = new StudentManager.Course();
			try
			{
				///添加
				course.AddCourse(Desn.Text.Trim(),Body.Text,
					DateTime.Parse(StartDate.Text.Trim()),DateTime.Parse(EndDate.Text.Trim()),
					Int32.Parse(CourseHour.Text.Trim()),Int32.Parse(TeacherList.SelectedValue),