netQT/U_Login.aspx.cs

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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;
using CommonLib;

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

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        if (TextBox1.Text != ""&& TextBox2.Text != "")
        {

            if (RadioButtonList1.SelectedItem.Text == "教师")
            {
                string str;
                str = "select * from T_Teacher where PassWord='" + TextBox2.Text + "'and TeacherName='" + TextBox1.Text + "'";
                SqlDataReader dr = new DBExec().execSqlQry(str);
                dr.Read();
                Session.Add("T_ID", dr.GetValue(0).ToString());

                //Response.Write("Index.aspx");
            }
            else if (RadioButtonList1.SelectedItem.Text == "学生")
            {
                string str;
                str = "select * from T_Student where PassWord='" + TextBox2.Text + "'and StuName='" + TextBox1.Text + "'";
                SqlDataReader dr = new DBExec().execSqlQry(str);
                dr.Read();
                Session.Add("S_ID", dr.GetValue(0).ToString());
                //Response.Write("Index.aspx");
            }
            else if (RadioButtonList1.SelectedItem.Text == "会员")
            {
                string str;
                str = "select * from T_User where PassWord='" + TextBox1.Text + "'and UserName='" + TextBox1.Text + "'";
                SqlDataReader dr = new DBExec().execSqlQry(str);
                dr.Read();
                Session.Add("UserID", dr.GetValue(0).ToString());
                //Response.Write("Index.aspx");
            }
            JavaScriptHelper.Alert("登陆成功！");
        }
        else
        {
            JavaScriptHelper.Alert("用户名或密码不能为空！");
        }
    }
}