SQL Server 2005 - Can't Get CASCADE DELETE To Work

I'm using SQL Server 2005 (product version = 9.00.1406.00, product level = RTM, and edition = Developer Edition). I have a db with a number of tables; I created a Foreign Key in one table and added a Foreign Key w/ ON DELETE CASCADE to it -- all using Microsoft SQL Server Management Studio. When I delete the record in the table with the foreign key, the record in the other table does not get deleted. I tried doing this with a simple SQL script in Microsoft SQL Server Management Studio and in a simple .Net / ADO (C#-based) program. Only the record in the table that I'm specifically deleting is deleted.


Here's the table that is referenced by the foreign key (I told Server Management Studio to write out the script):

USE [CHNOPSDb]
GO
/****** Object: Table [dbo].[tblDeviceContainer] Script Date: 08/13/2007 16:47:03 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[tblDeviceContainer](
[ID] [int] IDENTITY(1,1) NOT NULL,
[DeviceContainerTypeID] [int] NOT NULL,
CONSTRAINT [PK_tblDeviceContainer] PRIMARY KEY CLUSTERED
(
[ID] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]


Here's the table that has the foreign key to the above table (again, I told Management Studio to write out the script):

USE [CHNOPSDb]
GO
/****** Object: Table [dbo].[tblNode] Script Date: 08/13/2007 16:46:40 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[tblNode](
[ID] [int] IDENTITY(1,1) NOT NULL,
[NodeName] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
[NodeTypeID] [int] NOT NULL,
[UnitID] [int] NOT NULL,
[pDeviceContainerID] [int] NOT NULL,
[NodeIndex] [int] NULL,
CONSTRAINT [PK_Node] PRIMARY KEY CLUSTERED
(
[ID] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
USE [CHNOPSDb]
GO
ALTER TABLE [dbo].[tblNode] WITH CHECK ADD CONSTRAINT [FK_tblNode_tblDeviceContainer] FOREIGN KEY([pDeviceContainerID])
REFERENCES [dbo].[tblDeviceContainer] ([ID])
ON DELETE CASCADE


I then perform a delete using the following:


Use CHNOPSDb;

delete from tblNode where ID = 1;


It deletes the tblNode record but doesn't delete the tblDeviceContainer record that is referenced by tblNode.


Any help?

Thanks,
Bill