gonggao.ascx.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 WebUserControl : System.Web.UI.UserControl
{
    SqlConnection conn;
    protected void Page_Load(object sender, EventArgs e)
    {
        string myconn=System .Configuration .ConfigurationManager .AppSettings ["ConnectionString"];
        conn = new SqlConnection(myconn );
        conn.Open();
        string sql = "select * from gonggao";
        SqlCommand cmd = new SqlCommand(sql, conn);
        SqlDataReader dr = cmd.ExecuteReader();
        try
        {   //身份验证成功
            if (dr.Read())
            {
                string gstate = dr["g_state"].ToString().Trim ();
                if (gstate == "启用")
                {
                    Label1.Text = dr["g_info"].ToString().Trim ();
                    Label1.Style["color"] = "black";
                }
                else
                {
                    Label1.Text = null;
                }
            }
        }
        finally
        {
            //关闭操作
            dr.Close();
            conn.Close();
        }
    }
}