Sharing ASP.NET cookies across sub-domains

Question

I have two sites, both on the same domain, but with different sub-domains.
site1.mydomain.com site2.mydomain.com

Once I\'m authenticated on each, I look at the c

Answer 1

set the property of Domain to ".mydomain.com" in each Cookies of two subdomains websites

like

Response.Cookies["test"].Value = "some value";
Response.Cookies["test"].Domain = ".mysite.com";

UPDATE 1

in Site

HttpCookie hc = new HttpCookie("strName", "value");
hc.Domain = ".mydomain.com"; // must start with "."
hc.Expires = DateTime.Now.AddMonths(3);
HttpContext.Current.Response.Cookies.Add(hc);

In Site B

HttpContext.Current.Request.Cookies["strName"].Value

Try It

Regards