returnbook.aspx.cs

课程设计专用的图书管理系统。绝对原创！希望对大家有所帮助

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 returnbook : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        //连接本地计算机的数据库
        SqlConnection cn = new SqlConnection("Server=.;database=Mylibrary;uid=sa;pwd=123");
        //cn.Open();
        string constring = "delete from jieyue  where 图书编号='" + BookID2.Text + "'AND ReaderID='" + ReaderID2.Text + "'";
        //创建Command对象
        SqlCommand cm = new SqlCommand(constring, cn);
        try
        {
            cn.Open();
            int r = cm.ExecuteNonQuery();
            if (r == 1)
            {
                lblmessage.Text = "还书成功！";
            }
            else
            {
                lblmessage.Text = "还书失败！";
            }
        }
        finally
        {
            cn.Close();
        }
    }
}