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Re :Log in, Log out...

by Spidy
on Feb 23 2012 4:06AM
Points : 10
Silver ★

Hello Jeeav,

Below is the one of the way to achieve you requirement

1. Use cookie to store the user details.
2. Check user details in the cookie if once open the new browser.
3. When user clicks on the logout clear the cookie details and after that user needs to provide the credentials to login into application.

place the below code in login page.

protected void Login_Click(object sender, EventArgs e)
        {
            if (authenticate(txtName.Text, txtPwd.Text))
            {
                if (ChckRemember.Checked == true)
                {
                    Response.Cookies["UsrName"].Value = txtName.Text;
                    Response.Cookies["UsrPWD"].Value = txtPwd.Text;
                    Response.Cookies["UsrName"].Expires = DateTime.Now.AddMonths(6);
                    Response.Cookies["UsrPWD"].Expires = DateTime.Now.AddMonths(6);
                }
        }

private bool authenticate(string name, string pwd)
        { 
            //check user cred..
            return true;

        }

place the below code in login page or home page

protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                if (Request.Cookies["UsrName"] != null && Request.Cookies["UsrPWD"] != null)
                {
                    if (authenticate(Request.Cookies["UsrName"].Value, Request.Cookies["UsrPWD"].Value))
                    {
                        Response.Redirect("test.aspx");
                    }
                }
         } 
        }

see the below URL for logout and avoid back button ..

http://www.dotnetgallery.com/lab/resource47-Avoid-back-button-after-logout-in-aspnet-application.aspx

Thanks.

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