booklist.aspx.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 BookList : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        int categoryId = Convert.ToInt32(Request.Params["CatID"]);

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


        //给存储过程添加参数
        SqlParameter parameterCategoryID = new SqlParameter("@CatID", SqlDbType.Int, 4);
        parameterCategoryID.Value = categoryId;
        myCommand.Parameters.Add(parameterCategoryID);

        //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 = myCommand.ExecuteReader(CommandBehavior.CloseConnection);

        MyList.DataSource = result;
        MyList.DataBind();
    }

}