coursedetail.aspx.cs

学生网上选课系统,实现了学生的在线选课和教师课程的上传

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;

public partial class _Default : System.Web.UI.Page
{
    SqlConnection conn;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!this.IsPostBack)
        {
            CourceDetailsShow();
        }
    }

    private void CourceDetailsShow()
    {
        string connStr = System.Configuration.ConfigurationManager.AppSettings["ConnectionString"];  
        string SqlStr = "SELECT Cource.*,Teacher.teaName,type.typename from Cource,Teacher,type where Cource.teaID=Teacher.teaID and Cource.typeID=type.typeID and Cource.courceID='" + Request["courceID"].ToString() + "' and Cource.teaID='" + Request["teaID"].ToString() + "'";
        conn = new SqlConnection(connStr);    
        try
        {
            if (conn.State.ToString() == "Closed")         
                conn.Open();
            SqlCommand cmd=new SqlCommand(SqlStr, conn);    
            SqlDataReader sdr = cmd.ExecuteReader();        
            if (sdr.Read())                                 
            {
                courceNameF.Text = sdr["courceName"].ToString();
                courceName.Text = sdr["courceName"].ToString();
                typename .Text =sdr ["typename"].ToString ();
                teaName.Text = sdr["teaName"].ToString();
                courceTime.Text = sdr["courceTime"].ToString();
                courceAddress.Text = sdr["courceAddress"].ToString();
                courceDetails.Text = sdr["courceInfo"].ToString();
                courcerenshu.Text = sdr["courcerenshu"].ToString();
                credit.Text = sdr["credit"].ToString();
                xueshi.Text = sdr["xueshi"].ToString();
            }
            else
            {
                Response.Write("数据库错误，没查询到该门课程！");
                Response.End();
            }
        }
        catch (Exception ex)                                
        {
            Response.Write("数据库错误，错误原因：" + ex.Message);
            Response.End();
        }
        finally
        {
            if (conn.State.ToString() == "Open")            
                conn.Close();
        }  
    }
   
}