default.aspx.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.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)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        SqlConnection con = new SqlConnection("server=.;database=mrdb;uid=sa;pwd=;");
        
        try {
                //打开数据库连接
            con.Open();
            SqlDataAdapter sda = new SqlDataAdapter("select * from tb_Book1", con);  
            DataSet ds = new DataSet();
            sda.Fill(ds,"User");　　　　　//填充数据集
            GridView1.DataSource = ds;
            GridView1.DataBind();
            Response.Write("<script laguage=javascript>alert('访问SQL Server数据库成功！')</script>");

        }
        catch (Exception error)
        {
            Response.Write(error.ToString());
            Response.Write("<script language=javascript>alert('访问SQL Server数据库失败！')</script>");
        }
        finally
        {
            //关闭数据库连接
            con.Close();
            
        }
        
    }
}