public bool CloseConnectionGroup(string connectionGroupName)
 {
     if ((!this.ReleaseConnectionGroup(HttpWebRequest.GenerateConnectionGroup(connectionGroupName, false, false).ToString()) && !this.ReleaseConnectionGroup(HttpWebRequest.GenerateConnectionGroup(connectionGroupName, true, false).ToString())) && !ConnectionPoolManager.RemoveConnectionPool(this, connectionGroupName))
     {
         return(false);
     }
     return(true);
 }