Code of creating and clearing cookie for 'Remember Me' Check-box At Login page !!!

We all do coding for remembering the User-name and Password of user by creating cookie ( If user checks 'Remember Me' check-box while Login) or sometime it may happens that we forget to write a code for that functionality or even if we write a code, it doesn't work because of some mistakes. And we never bother to clear that cookie when next time that user log-outs and unchecked the 'Remember Me' check-box and Login again.

Please find the below code which we should use at Login page to create and clear cookie:

protected void Page_Load(object sender, EventArgs e)

    {

        try

        {

            if (!IsPostBack)

            {

                //Uncheck the 'Remember Me' checkbox.

                RemMeCheckBox.Checked = false;

                //Check if cookie contains data.

                HttpCookie cookie = Request.Cookies["TNCredentialCookieOfAdmin"];

                if (cookie != null)

                {

                    //If cookie is not null and contains data, display data to user(as he wished to remember his Username and password.)

                    string username = cookie.Values["Username"].ToString();

                    string password = cookie.Values["Password"].ToString();

                    if (username != null)

                    {

                        txtUserName.Text = username;

                    }

                    if (password != null)

                    {

                        txtPassword.Attributes.Add("value", password);

                    }

                    //Check the 'Remember Me' checkbox.

                    RemMeCheckBox.Checked = true;

                }

                //your other code

                .

                .

                .

            }

        }

        catch (Exception ex)

        { }

    }

    protected void btnLogin_Click(object sender, EventArgs e)

    {

        try

        {          

            //your other code

            .

            .

            .

            //code for 'Remember Me' checkbox

            if (RemMeCheckBox.Checked == true)

            {

                //If 'Remember Me' checkbox is checked, create a cookie which will maintain Users Username and Password.

                HttpCookie createCookie = new HttpCookie("TNCredentialCookieOfAdmin");

                createCookie.Values["Username"] = txtUserName.Text.ToString();

                createCookie.Values["Password"] = txtPassword.Text.ToString();

                Response.Cookies.Add(createCookie);

            }

            else

            {

                //If 'Remember Me' checkbox is not checked, clear the cookie.

                Response.Cookies["TNCredentialCookieOfAdmin"].Expires = DateTime.Now;

            }

        }

        catch (Exception ex)

        { }

    }