booknav.ascx.cs

图书销售系统源码

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 BookNav : System.Web.UI.UserControl
{
    protected void Page_Load(object sender, EventArgs e)
    {
        String selectedId = Request.Params["selection"];
        if (selectedId != null)
        {
            MyList.SelectedIndex = Int32.Parse(selectedId);
        }

        //获取图书类别信息并绑定到控件

        //创建数据库连接和命令的对象
        //读取数据库连接字符串
        string settings = Convert.ToString(ConfigurationManager.ConnectionStrings["SqlServices"]);
        //创建数据库连接
        SqlConnection myconn = new SqlConnection(settings);
        //打开数据库连接
        myconn.Open();

        SqlCommand mycmd = new SqlCommand("ListBookCategory", myconn);
        //设定命令类型为存储过程
        mycmd.CommandType = CommandType.StoredProcedure;

        //执行数据操作命令
        //SqlDataReader读取数据到记录集后，会自动关闭数据库的连接
        SqlDataReader result = mycmd.ExecuteReader(CommandBehavior.CloseConnection);
        MyList.DataSource = result;
        MyList.DataBind();  

    }
}