Restrict unathenticated users to access specific page without using ASP.Net Membership Provider

Hi dgunners,

Here i have created sample. You need to use the same logic in your project.

HTML

Master.master

<div>
    <table border="0" cellpadding="0" cellspacing="0">
        <tr>
            <td>
                <asp:LinkButton ID="lbSignUp" PostBackUrl="~/Registration.aspx" runat="server" Text="Sign Up" />
            </td>
            <td>
                <asp:LinkButton ID="lbLogin" PostBackUrl="~/Login.aspx" runat="server" Text="Login" />
            </td>
            <td>
                <asp:LinkButton ID="lbHome" PostBackUrl="~/Home.aspx" runat="server" Text="Home" />
            </td>
            <td>
                <asp:LinkButton ID="lbContactUs" PostBackUrl="~/ContactUs.aspx" runat="server" Text="ContactUs" />
            </td>
            <td>
                <asp:LinkButton ID="lbLogout" PostBackUrl="~/Login.aspx" runat="server" Text="Logout"
                    Visible="false" OnClick="Click" />
            </td>
        </tr>
    </table>
    <br />
    <br />
    <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
    </asp:ContentPlaceHolder>
</div>

Registration.aspx

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    <table border="0" cellpadding="0" cellspacing="0">
        <tr>
            <td>
                UserName:
            </td>
            <td>
                <asp:TextBox ID="txtUserName" runat="server" Width="150px" />
            </td>
        </tr>
        <tr>
            <td>
                Password:
            </td>
            <td>
                <asp:TextBox ID="txtPassword" runat="server" TextMode="Password" Width="150px" />
            </td>
        </tr>
        <tr>
            <td>
                Email:
            </td>
            <td>
                <asp:TextBox ID="txtEmail" runat="server" Width="150px" />
            </td>
        </tr>
        <tr>
            <td colspan="2" align="center">
                <asp:Button ID="btnSugnUp" runat="server" Text="Submit" />
            </td>
        </tr>
    </table>
</asp:Content>

Login.aspx

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    <asp:Login ID="Login1" runat="server" OnAuthenticate="OnAuthenticate">
    </asp:Login>
</asp:Content>

Home.aspx

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    Well Come to Excelasoft Solution Pvt. Ltd.
</asp:Content>

ContactUs.aspx

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    This is Contact Us page.
</asp:Content>

Error.aspx

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    You do not have access the page.
    <br />
    If you are not a registered user use the below link for registration.
    <br />
    <asp:HyperLink ID="HyperLink1" NavigateUrl="~/Registration.aspx" runat="server" Text="Sign Up" />
    <br />
    If you are already a user please login to access the page.
    <br />
    <asp:HyperLink ID="HyperLink2" NavigateUrl="~/Login.aspx" runat="server" Text="Login" />
</asp:Content>

Code

Master.master.cs

protected void Page_Load(object sender, EventArgs e)
{
    if (Session["ValidUser"] != null && Session["ValidUser"] == "UserLoggedIn")
    {
        lbLogout.Visible = true;
    }
}

protected void Click(object sender, EventArgs e)
{
    Session["ValidUser"] = null;
}

Login.aspx.cs

protected void OnAuthenticate(object sender, AuthenticateEventArgs e)
{
    string userName = Login1.UserName;
    string password = Login1.Password;
    if (userName.ToLower() == "test" && password.ToLower() == "test")
    {
        Session["ValidUser"] = "UserLoggedIn";
        Server.Transfer("~/Home.aspx");
    }
}

Home.aspx

protected void Page_Load(object sender, EventArgs e)
{
    if (Session["ValidUser"] == null && Session["ValidUser"] != "UserLoggedIn")
    {
        Server.Transfer("Error.aspx");
    }
}

ContactUs.aspx.cs

protected void Page_Load(object sender, EventArgs e)
{
    if (Session["ValidUser"] == null && Session["ValidUser"] != "UserLoggedIn")
    {
        Server.Transfer("Error.aspx");
    }
}

Screenshot