c#中登陆问题！！...急

Question

我在做一个html的界面  界面上有两个textbox用来登陆 ，在用户输入信息并且点击提交后 ，将数据与数据库中的数据比较 当正确就用“xxx您好”
错误就“”；
我想应该是用js获取数据库中的数据，然后与文本框中的数据匹配，不知道是不是
希望大家指点指点
尽量明白点

Answer 1

必须在后台连接数据库，搜出数据来传到前台，可以用AJAX方法传前台

Answer 2

你可以用AJAX来实现,当用户名和密码正确时再转到相应的页面

Answer 3

用Ajax连接数据库，把数据库的数据调出来和前台的比较！

Answer 4

那是写个类还是 建个aspx界面啊
ajax我不会啊 

Answer 5

如果你的TextBox是服务器端的控件，就可以直接把值从数据库中取出然后进行比较，
如果是客户端的控件，建议你用Ajax代码实现

Answer 6

c#访问sql server，登录模块，看看有你想要的东东吗  
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 class ttestt_Default : System.Web.UI.Page
{
        static string constring = System.Configuration.ConfigurationManager.ConnectionStrings["goodsmisdbConnectionString"].ToString();        protected void Page_Load(object sender, EventArgs e)
        {
            lbmsg.Text = "";
            uid.Focus();
        }
        protected void Button1_Click(object sender, EventArgs e)
        {
            if (Session["username"] != null)
            {
                Session["username"] = null;
            }
            if (Session["usertype"] != null)
            {
                Session["usertype"] = null;
            }
            RequiredFieldValidator1.ErrorMessage = "";
            string username = uid.Text.Trim();
            string password = pwd.Text.Trim();
            lbmsg.Text = "";
            SqlConnection myConn = new SqlConnection(constring);
            myConn.Open();
            SqlCommand isLockCom = new SqlCommand("isLocked", myConn);
            isLockCom.CommandType = CommandType.StoredProcedure;
            isLockCom.Parameters.AddWithValue("@username", username);
            int pd = -1;
            pd = Convert.ToInt32(isLockCom.ExecuteScalar());
            if (pd != 1)
            {
                SqlCommand myCommand = new SqlCommand();
                myCommand.Connection = myConn;
                myCommand.CommandType = CommandType.StoredProcedure;
                myCommand.CommandText = "uidPwd";
                myCommand.Parameters.AddWithValue("@username", username);
                myCommand.Parameters.AddWithValue("@password", password);
                SqlDataReader myRead = myCommand.ExecuteReader();                if (myRead.Read() == true)
                {
                    string flag = myRead.GetValue(1).ToString();
                    myRead.Close();
                    SqlCommand myCommand2 = new SqlCommand();
                    myCommand2.Connection = myConn;
                    myCommand2.CommandType = CommandType.StoredProcedure;
                    myCommand2.CommandText = "SetErrTimesZero";
                    myCommand2.Parameters.AddWithValue("@username", username);
                    myCommand2.ExecuteNonQuery();
                    myConn.Close();                    Session.Timeout = 60;
                    Session["username"] = uid.Text.Trim();
                    Session["usertype"] = flag;
                    Response.Redirect("~/login/default.aspx");
                }
                else
                {
                    Response.Write("<script>window.alert('用户名或密码错误，请重新输入！')</script>");
                    myRead.Close();                    SqlCommand errCommand1 = new SqlCommand();
                    errCommand1.Connection = myConn;
                    errCommand1.CommandText = "haveUserAndErr";
                    errCommand1.CommandType = CommandType.StoredProcedure;
                    errCommand1.Parameters.AddWithValue("@username", username);
                    SqlDataReader myRead1 = errCommand1.ExecuteReader();
                    if (myRead1.Read())
                    {
                        int times = (int)myRead1.GetValue(1);
                        myRead1.Close();
                        SqlCommand addErrorCom = new SqlCommand("addErrorTimes", myConn);
                        addErrorCom.CommandType = CommandType.StoredProcedure;
                        addErrorCom.Parameters.AddWithValue("@username", username);
                        addErrorCom.ExecuteNonQuery();
                        switch (times)
                        {
                            case 1:
                                {
                                    lbmsg.Text = "此用户已两次输入错误口令，若再次错误用户名将被锁！";
                                    uid.Text = "";
                                    pwd.Text = "";
                                    uid.Focus();
                                    break;
                                }
                            case 2:
                                {
                                    SqlCommand lockUserCom = new SqlCommand("lockUser", myConn);
                                    lockUserCom.CommandType = CommandType.StoredProcedure;
                                    lockUserCom.Parameters.AddWithValue("@username", username);
                                    lockUserCom.ExecuteNonQuery();
                                    lbmsg.Text = "此用户名被锁，请与管理员联系！！";
                                    uid.Text = "";
                                    pwd.Text = "";
                                    break;
                                }
                        }                    }
                    myRead1.Close();
                    myConn.Close();
                    uid.Focus();
                }
            }
            else
            {
                lbmsg.Text = "此用户名被锁，请与管理员联系！";
                uid.Text = "";
                pwd.Text = "";
                myConn.Close();
            }
        }
}

Answer 7

我是在html中做的ok？
你见过html中有服务器控件？
上面代码太难了看不懂，，在下一小鸟