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.OleDb;

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        string con = "Provider=Microsoft.Jet.OLEDB.4.0; Jet OLEDB:DataBase Password=" + TextBox1.Text + ";User Id=admin; Data source=" + Server.MapPath("User.mdb");
        OleDbConnection odcon = new OleDbConnection(con);
        try {
            odcon.Open();
            OleDbDataAdapter oda = new OleDbDataAdapter("select * from Info", odcon);
            DataSet ds = new DataSet();
            oda.Fill(ds, "Info");
            GridView1.DataSource = ds;
            GridView1.DataBind();
            Response.Write("<script language=javascript>alert('访问成功！')</script>");
        }
        catch(Exception error)
        {
            
            Response.Write("<script language=javascript>alert('访问失败！请重新输入密码！')</script>");
        }
        finally{
            odcon.Close();
        }
    }
}