left.ascx.cs

这是asp.net^和Visual C++Sharp编写的串并口通讯的书籍 源代码

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 left : System.Web.UI.UserControl
{
    SqlConnection leftstrcon = new SqlConnection(System.Configuration.ConfigurationManager.AppSettings["ccc"]);
    protected void Page_Load(object sender, EventArgs e)
    {
        try
        {
            string que = "select top 10  goodsID, GoodsName, SUM(price) AS dd from V_order_detail GROUP BY goodsID, GoodsName order by dd desc";
            SqlDataAdapter dap = new SqlDataAdapter(que, leftstrcon);
            DataSet daset = new DataSet();
            dap.Fill(daset);
            GridView1.DataSource = daset;
            GridView1.DataBind();
            string queone = "select * from tb_subType";
            SqlCommand cmd=new SqlCommand(queone,leftstrcon);
            leftstrcon.Open();
            SqlDataReader sdr = cmd.ExecuteReader();
            DropDownList1.DataSource = sdr;
            DropDownList1.DataTextField = "TypeName";
            DropDownList1.DataValueField = "ID";
            DropDownList1.DataBind();
            leftstrcon.Close();
        }
        finally
        {
            leftstrcon.Close();
        }
        

    }
    protected void Login1_Authenticate(object sender, AuthenticateEventArgs e)
    {

    }
    protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
    {

    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        
    }
    protected void Button1_Click(object sender, EventArgs e)
    {

    }
    protected void Button3_Click(object sender, EventArgs e)
    {
        string str = DropDownList1.SelectedValue.ToString();
        string key = TextBox1.Text.Trim().ToString();
        Response.Redirect("search.aspx?stype="+str+"&key="+key);
    }
}