Keep Me Logged In

You have to add Cookies with login details, something like this,

On login click,

string username = txtUsername.Text;
string Password = txtPassword.Text;

// Create Cookie and Store the Login Detail in it if check box is checked
if ((keeeMeLoggedIn.Checked == true)) {
HttpCookie mycookie = new HttpCookie("LoginDetail");
mycookie.Values("Username") = txtUsername.Text.Trim();
mycookie.Values("Password") = txtPassword.Text.Trim();
mycookie.Expires = System.DateTime.Now.AddDays(365);
Response.Cookies.Add(mycookie);
}
Response.Redirect("Home.aspx");

On page load,
//check if cookie exist then login page from
if ((Response.Cookies("LoginDetail") != null)) {
//do stuff
}
else
{
 //redirect to login page
}