adminelect.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)
    {
        string myconn=System .Configuration.ConfigurationManager .AppSettings ["ConnectionString"];
        conn = new SqlConnection(myconn );
        if (!this.IsPostBack)
        {
            BindGrid();
        }
    }
    protected void Data_Page(object sender, GridViewPageEventArgs e)
    {
        try
        {
            GridView1.PageIndex = e.NewPageIndex;
            BindGrid();
        }
        catch { }
    }
    protected void BindGrid()
    {
        string id = Request.QueryString["stuID"];
        string sql = "SELECT Cource.courceName,type.typename, Teacher.teaName, Cource.courceTime,Cource.courceid, Cource.courceAddress,Cource.credit,Cource.xueshi,Cource.courcerenshu,Cource.renshu,Teacher.teaid  FROM Cource,Teacher,Elect,type where Elect.teaID=Teacher.teaID and Elect.courceID=Cource.courceID and type.typeID=Cource.typeID and Elect.stuID='" + id + " '";

        DataSet myds = new DataSet();
        SqlDataAdapter myda = new SqlDataAdapter(sql, conn);
        myda.Fill(myds);
        GridView1.DataSource = myds;
        GridView1.DataBind();
    }
}