登陆求助，求大神！！！急急急！！！

         protected void btnLogin_Click(object sender, EventArgs e)
        {
            if (lbYzmMsg.Text == "验证码错误，请重试")
            {
                Response.Write("<script>alert('验证码错误，请重新输入！')</script>");
                return;
            }
            DataTable table = SqlHelper.ExecuteDataTable("select * from T_User where UserName=@UserName",
               new SqlParameter("@UserName", txtUserName.Text));

            if (table.Rows.Count >= 1)
            {
                DataRow row = table.Rows[0];
                if (txtPassword.Text == (string)row["Password"])
                {
                    Response.Redirect("Customers.aspx");
                }
                else if (txtPassword.Text != (string)row["Password"])
                {
                    Response.Write("<script>alert('密码错误！')</script>");
                    return;
                }
            }
            else
            {
                Response.Write("<script>alert('用户名不存在！')</script>");
                return;
            }
        }

为啥这段代码跳不到Customers.aspx这个页面呢，我把那些数据都单独查，都是查的到的，但就是整合起来的时候就直接不运行这段代码了，急急急，求大神！

调试下，数据库sql的UserName Password都是关键字，需要用方括号转义
if (txtPassword.Text == (string)row["Password"])
修改为
if (txtPassword.Text == row["Password"].ToString())