login.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.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 AdminManage_Login : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            CheckCode();
        }
    }
    public void CheckCode()
    {
        Random randobj = new Random();
        this.lbeCode.Text = randobj.Next(1000, 10000).ToString();
    }
 
    //登录
    protected void ImageButton7_Click(object sender, ImageClickEventArgs e)
    {
        if (this.txtCode.Text.Trim() ==lbeCode.Text.Trim())
        {
            if (FormsAuthentication.Authenticate(this.txtUser.Text.Trim(), txtPwd.Text.Trim()))
            {
                FormsAuthentication.SetAuthCookie(this.txtUser.Text.Trim(), false);
                Response.Redirect("Default.aspx");
               
            }
            else
            {
                CheckCode();
                Response.Write("<script>alert('您输入的用户名或密码错误，请重新输入！');</script>");
                
            }
        }
        else
            Response.Write("<script>alert('验证码输入有误，请重新输入！');</script>");
    }
    protected void ImageButton8_Click(object sender, ImageClickEventArgs e)
    {
        Response.Write("<script language='javascript'>window.close();</script>");
    }
}