Question

基本上我使用visual studio中提供的登录表单并尝试使用sql数据库进行身份验证。如果我输入的数据不正确，则会显示正确的验证，但是当我输入正确的数据时，它只刷新当前表单而不是记下destinationUrl部分。

我现在无法解决这个问题......帮助

以下是我的表格代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.Configuration;
using System.Data;
using System.Data.SqlClient;

namespace com.tortoise.Admin.AdminViews
{
public partial class WebForm1 : System.Web.UI.Page
{
    private string strcon = WebConfigurationManager.ConnectionStrings["TortoiseDBConnectionString"].ConnectionString;
    protected void Page_Load(object sender, EventArgs e)
    {

    }
        private bool UserLogin(string un, string pw)
    {
        SqlConnection con = new SqlConnection(strcon);
        SqlCommand cmd = new SqlCommand("Select Username from Admins where Username=@un and Password=@pw", con);
        cmd.Parameters.AddWithValue("@un", un);
        cmd.Parameters.AddWithValue("@pw", pw);
        con.Open();
        string result = Convert.ToString(cmd.ExecuteScalar());
        if (string.IsNullOrEmpty(result)) return false; return true;
    }
    protected void Login1_Authenticate(object sender, AuthenticateEventArgs e)
    {
        string un = Login1.UserName;
        string pw = Login1.Password;
        bool result = UserLogin(un, pw);
        if (result)
        {
            e.Authenticated = true;
            Session["username"] = un;
            Login1.DestinationPageUrl =
           String.Format("Manager.aspx?{0}", Request.QueryString.ToString());

        }

        else e.Authenticated = false;
    }

    protected void SqlDataSource1_Selecting(object sender, SqlDataSourceSelectingEventArgs e)
    {

    }
}

}

Answer 1

试试这个：

string returnUrl = Request.QueryString["ReturnUrl"];
 if (returnUrl == null) returnUrl = @"~/yourfirstpage.aspx";
     Response.Redirect(returnUrl);

asp.net中的登录表单不会指向登录页面

1 个答案: