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)
    {
        if (!IsPostBack)
        {
            loadGridView1();
            loadGriView2();
        }
    }
    protected void loadGridView1()
    {
        SqlConnection con = new SqlConnection("server=.;database=mrdb;uid=sa;pwd=;");
        con.Open();
        SqlDataAdapter sda = new SqlDataAdapter("select * from admInfo", con);
        DataSet ds = new DataSet();
        sda.Fill(ds);
        GridView1.DataSource = ds;
        GridView1.DataBind();
        con.Close();
    }
    protected void loadGriView2()
    {
        SqlConnection con = new SqlConnection("server=.;database=mrdb;uid=sa;pwd=;");
        con.Open();
        SqlDataAdapter sda = new SqlDataAdapter("select * from systemLog", con);
        DataSet ds = new DataSet();
        sda.Fill(ds);
        GridView2.DataSource = ds;
        GridView2.DataBind();
        con.Close();
    }

    protected void Button1_Click(object sender, EventArgs e)
    {

        SqlConnection con = new SqlConnection("server=.;database=mrdb;uid=sa;pwd=;");
        con.Open();
        string str = "select count(*) from admInfo where admPass='" + TextPass.Text.ToString() + "'";
        SqlCommand mycom = new SqlCommand(str, con);
        int intcont = Convert.ToInt32(mycom.ExecuteScalar());
        if (intcont > 0)
        {
            Response.Write("<script language=javascript>alert('对不起!您已经修改了此密码！')</script>");
            return;
        }
        else
        {
            string sql = "update admInfo set admPass='" + TextPass.Text + "' where admName='" + TextName.Text + "'";
            try
            {
                SqlCommand com = new SqlCommand(sql, con);
                com.ExecuteNonQuery();
                Response.Write("<script language=javascript>alert('修改密码成功！')</script>");
            }
            catch (Exception error)
            {
                Response.Write(error.ToString());
            }
            finally
            {

                con.Close();
                loadGridView1();//在GridView1里显示管理员信息的方法；
                loadGriView2();//在GridView2里显示系统日志的方法；

            }
        }
    }
}