bookborrow.ascx.cs

一个简单的图书管理系统,赋有设计的说明书。可以实现一般的管理操作。

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 ascx_BookBorrow : System.Web.UI.UserControl
{
    protected void Page_Load(object sender, EventArgs e)
    {
       //string connstr = "server=localhost;Database=library1;User ID=sa;Password=''";//直接写的
       // SqlConnection conn = new SqlConnection(connstr);
       // SqlCommand cmd = new SqlCommand("select * from BorrowInfo where UserID='" + Session["UserID"] + "'", conn);        
       //  conn.Open();
        DataControl.ConnectionControl conn = new DataControl.ConnectionControl(); //自己定义的类
        conn.DataConnetion();
        SqlCommand cmd = conn.DataCmd("select * from BorrowInfo where UserID='" + Session["UserID"] + "'");      
        SqlDataReader dr = cmd.ExecuteReader();
        if (!dr.Read())
        {
             Message.Text = "您没有借书记录！";
        }
        
    }
}