System.Security.Permissions.KeyContainerPermission.Union C# (CSharp) Method

		public override IPermission Union (IPermission target)
		{
			KeyContainerPermission kcp = Cast (target);
			if (kcp == null)
				return Copy ();

			KeyContainerPermissionAccessEntryCollection kcpaec = new KeyContainerPermissionAccessEntryCollection ();
			// copy first group
			foreach (KeyContainerPermissionAccessEntry kcpae in _accessEntries) {
				kcpaec.Add (kcpae);
			}
			// copy second group...
			foreach (KeyContainerPermissionAccessEntry kcpae in kcp._accessEntries) {
				// ... but only if not present in first group
				if (_accessEntries.IndexOf (kcpae) == -1)
					kcpaec.Add (kcpae);
			}

			if (kcpaec.Count == 0)
				return new KeyContainerPermission ((_flags | kcp._flags));

			KeyContainerPermissionAccessEntry[] list = new KeyContainerPermissionAccessEntry [kcpaec.Count];
			kcpaec.CopyTo (list, 0);
			return new KeyContainerPermission ((_flags | kcp._flags), list);
		}