Reg.aspx.cs

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using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

public partial class Reg : System.Web.UI.Page
{
    protected void Page_Load(object sender, System.EventArgs e)
    {
    }
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Label1.Visible = false;
        string errmsg = "";
        if (username.Text == "")
        {
            errmsg += "<br>用户名不能为空！<br>";
        }
        if (password.Text == "")
        {
            errmsg += "密码不能为空！<br>";
        }
        if (password.Text != password2.Text)
        {
            errmsg += "两次密码不想同，请确认您的密码是否正确！<br>";
        }
        if (usertel.Text == "")
        {
            errmsg += "联系电话必须输入！<br>";
        }
        if (useraddr.Text == "")
        {
            errmsg += "请输入地址！<br>";
        }
        if (userrname.Text == "")
        {
            errmsg += "请输入真实姓名！<br>";
        }
        if (errmsg != "")
        {
            Label1.Text = "<font color=ff000>" + errmsg + "</font>";
            Label1.Visible = true;
        }
        else
        {
            string sql;
            sql = "select * from tUser where username ='" + username.Text + "'";
            DataTable dt = MyDB.GetDataTable(sql);
            if (dt.Rows.Count == 0)
            {
                sql = "insert into tUser (username,userpassword,userrname,usertel,useraddr,userclass) values ('" + username.Text + "','" + password.Text + "','" + userrname.Text + "','" + usertel.Text + "','" + useraddr.Text + "',1)";
                MyDB.ExecuteSql(sql);
                Response.Write("<script>alert(\"注册成功！您现在可以登录本站，在线选购您喜欢的产品了。\");</script>");
            }