default.aspx.cs

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using System;
using System.Data;
using System.Configuration;
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 _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        SqlConnection myConn = new SqlConnection(ConfigurationManager.AppSettings["ConnectionString"].ToString());
        string strSqlAll = "select * from tb_BookInfo";
        string strSqlGroup = "select 书籍类别,sum(库存数量)as 库存数量合计,sum(库存数量*书籍价格)as 合计金额 from tb_BookInfo Group by 书籍类别 Order by sum(库存数量*书籍价格) Desc";
        SqlDataAdapter adapterAll = new SqlDataAdapter(strSqlAll, myConn);
        DataSet dsAll = new DataSet();
        adapterAll.Fill(dsAll);
        this.GridView1.DataSource = dsAll.Tables[0].DefaultView;
        this.GridView1.DataBind();
        SqlDataAdapter adapterGroup = new SqlDataAdapter(strSqlGroup, myConn);
        DataSet dsGroup = new DataSet();
        adapterGroup.Fill(dsGroup);
        this.GridView2.DataSource = dsGroup.Tables[0].DefaultView;
        this.GridView2.DataBind();
    }
}