Question

I have a panel in my master page that has textboxes for users login. Users logged in successfully but I want to hide panel .when users entered when I try to hide hide panel by false the visibility this doesn’t work. My codes in master pages below: ( I use forms authentication and users are in data base)

protected void Button1_Click(object sender, EventArgs e)
{
    //hide panel doesn't work
    Panel1.Visible = false;
    //
    SqlCommand cmd = new SqlCommand();
    string str = "Data Source=.\\SQLEXPRESS;AttachDbFilename=C:\\Users\\ava\\Desktop\\WebSite3\\App_Data\\news.mdf;Integrated Security=True;User Instance=True";
    SqlConnection conn = new SqlConnection(str);
    conn.Open();
    cmd.CommandText = "select * from users where username=@name and pass=@pass";
    cmd.Connection = conn;
    cmd.Parameters.AddWithValue("name", user.Text);
    cmd.Parameters.AddWithValue("pass", pass.Text);

    SqlDataReader dr = cmd.ExecuteReader();

    if (dr.HasRows)
    {
        Panel1.Visible = false;
        Panel2.Visible = true;

        FormsAuthentication.SetAuthCookie(user.Text, true);
        FormsAuthentication.RedirectFromLoginPage(user.Text, true);
        Response.Redirect("/website3/karbar/karbar.aspx");


    }
    else user.Text = "Incorrect name or pass";
}

Answer 1

in your master page after load is complete do following

if(Request.IsAuthenticated)
{
        Panel1.Visible = false;
        Panel2.Visible = true;
}

Or use LoginView this control supports template for both Anonymous and LoggedIn users