Cannot access extended properties

I have a CodeSmith template that loads a CommandSchema object based on a stored procedure in my DB and accesses the CommandResults[0] property to get the first (and only) result set of the SP.  This property gives me a CommandResultSchema object.  I can then iterate it's Columns collection and access information about the underlying DB column to create an XSD that will be used by a typed dataset.  This has worked great for me so far but I now have a need to add the default value for the column into the generated schema.  I have read many posts saying to access the ExtendedProperties property but in my scenario the extened properties are not being populated for the columns.  I have tried this for identity, default, and description and the schema never reads in those values.  Can anyone tell me why I am not getting the extended properties?  Here is pseudo-code:

---------------
SQL Code
---------------

--Create table with default value for LastUpdate column
CREATE TABLE [dbo].[Location](
 [ID] [int] IDENTITY(1,1) NOT NULL,
 [LocationName] [varchar](50) NOT NULL,
 [SeatCount] [int] NOT NULL CONSTRAINT [DF_Location_SeatCount] DEFAULT (10)
GO

--Create SP
CREATE PROCEDURE [dbo].[Location_SelectByID]
 @ID int
AS
SELECT ID, LocationName, SeatCount
FROM Location
WHERE ID = @ID
GO

------------------------------
CodeSmith template
------------------------------

CommandSchemaCollection commandSchemas = new CommandSchemaCollection(SourceDatabase.Commands);
CommandSchema commandSchema = commandSchemas[0];
CommandResultSchema commandResultSchema = commandSchema.CommandResults[0];
CommandResultColumnSchema columnSeatCount = commandResultSchema.Columns[2];

--------
Tests
--------

?columnSeatCount.ExtendedProperties.Count
Result: 0

?column.ExtendedProperties["CS_Default"].Value
Result: 'column.ExtendedProperties["CS_Default"]' is null

 Which version of CodeSmith are you using?  In CodeSmith Studio, you can use the SchemaExplorer window to see what extended properties CodeSmith is getting.  Select a database object in SchemaExplorer.  In the property window, you'll see a property for ExtendedProperties.  Click the elipces and you'll see a grid of the extended properties of that db object.

 ~ Paul

Paul,

Thanks for the reply.  I am using CodeSmith version 3.2.7.  When I view the properties of database objects in the schema explorer (either tables or stored procedures) I only see DateCreated, Description, FullName, Name, and Owner in the properties window.  If I drill down to the fields that are returned from the stored procedure I see AllowDBNull, DataType, Description, Name, NativeType, Precision, Scale, Size, and SystemType.

Let me know if this info points you to any conclusions.

Thanks