SharePoint 2010 Acces Denied on creating new web from codebehind - sharepoint

Question

i have a sharepoint problem. I have an event handler on a list and whenever someone adds a new item in the list I want to create a new web with the required details. The problem comes when a diferent user that is not site collection admin adds the item. On the Web.Webs.Add() method i get the error:
Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)).
Note that I'm using the SPSecurity.RunWithElevatedPrivileges delegate.
Here is a code sample:
public override void ItemAdded(SPItemEventProperties properties)
{
SPSecurity.RunWithElevatedPrivileges(delegate()
{
string url = "the url";
if (Array.IndexOf(properties.Web.Webs.Names, url) >= 0)
{
properties.Web.Webs.Delete(url);
}
SPWeb newWeb = properties.Web.Webs.Add(url, "title", "description", properties.Web.Language, "STS#1", false, false);
});
}
Thanks.

Answer 1

I got it. The problem was that the web I was calling was not elevated, so I did somting like this:
public override void ItemAdded(SPItemEventProperties properties)
{
SPWeb web = properties.Web;
SPListItem currentItem= properties.ListItem;
SPSecurity.RunWithElevatedPrivileges(delegate()
{
using (SPSite site = new SPSite(web.Site.ID))
{
using (SPWeb elevWeb = site.OpenWeb(web.ID))
{
SPList elevList = ListUtils.GetList(elevWeb, "list");
SPListItem elevItem = elevList.Items[currentItem.UniqueId];
elevWeb.AllowUnsafeUpdates = true;
string url = "the url";
if (Array.IndexOf(elevWeb.Webs.Names, url) >= 0)
{
elevWeb.Webs.Delete(url);
}
SPWeb newWeb = elevWeb.Webs.Add(url, "title", "description", elevWeb.Language, "STS#1", false, false);
}
}
});
}