userlogin.ascx.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;

public partial class UserLogin : System.Web.UI.UserControl
{ 
    protected void ibtnLogin_Click(object sender, ImageClickEventArgs e)
    {
        if (Session["ValidateCode"].ToString().ToLower() == txtCheck.Text.ToLower().Trim())
        {
            string password = PasswordHasher.Hash(txtPwd.Text.Trim());
            if (CommonDataAccess.IsCustomerExsist(txtUserName.Text.Trim(), password))
            {
                Session.Remove("ValidateCode");
                Session["customer"] = txtUserName.Text.Trim();
                Response.Redirect("UserCenter.aspx");

            }
            else
            {
                Message.ShowMsgBox(Page, "用户名或密码错误!");

            }
        }
        else
        {
            Message.ShowMsgBox(Page, "验证码错误!");
            txtCheck.Text = null;
        }

    }
    protected void ibtnRegister_Click(object sender, ImageClickEventArgs e)
    {
        Response.Redirect("UserReg.aspx");
    }
    protected void Page_Load(object sender, EventArgs e)
    {
        if (Session["Customer"] != null)
        {
            Panel1.Visible = false;
        }
    }
}