C#

public class Config
{
...
  private LayerCollection m_Layers = new LayerCollection();

  [TypeConverter(typeof(ExpandableObjectConverter))]
  public LayerCollection Layers
  {
    get { return m_Layers; }
  }
...
}

public class Config
{
...
  private List<Layer> m_Layers = new List<Layer>();

  public List<Layer> Layers
  {
    get { return m_Layers; }
  }
...
}

private void btnAdd_Click(object sender, System.EventArgs e)<br />
		{<br />
			strPartNumberInputReference = txtSearchPart.Text;<br />
			strPartTypeID = ddPartType.SelectedValue;<br />
			strDwgNumber = txtDwgNumber.Text;<br />
			strDwgRevision = txtDwgRevision.Text;<br />
			strDwgLocation = txtDwgLocation.Text;	<br />
			SqlParameter param1 = new SqlParameter("@PartNumber", strPartNumberInputReference);	<br />
			param1.Direction = ParameterDirection.Input;<br />
			//SqlParameter param2 = new SqlParameter("@DwgNumber", strDwgNumber);<br />
			//SqlParameter param3 = new SqlParameter("@DwgRevision", strDwgRevision);<br />
			//SqlParameter param4 = new SqlParameter("@DwgLocation", strDwgLocation);<br />
			SqlParameter param5 = new SqlParameter("@PartTypeValue", strPartTypeID);<br />
			SqlParameter param6 = new SqlParameter(@ID, SqlDbType.Int);<br />
			param6.Direction = ParameterDirection.Output;<br />
			IDOutput = SqlHelper.ExecuteNonQuery (this.connectionString, CommandType.StoredProcedure, "dbo.UpdatePart_Step_1_Test3", param1, param5, param6);<br />
			test3 = param6.Value;<br />
	<br />
		}

CREATE PROCEDURE [dbo].[UpdatePart_Step_1_Test3]<br />
@PartNumber varchar (15),<br />
@PartTypeValue varchar (60),<br />
@ID int OUTPUT<br />
<br />
AS<br />
<br />
if NOT EXISTS (Select * from PartsDB.dbo.Parts where PartNumber = @PartNumber)<br />
BEGIN<br />
<br />
insert into PartsDB.dbo.Parts<br />
(PartNumber, PartTypeID)<br />
<br />
VALUES<br />
(<br />
@PartNumber,<br />
@PartTypeValue<br />
)<br />
<br />
END<br />
SET @ID = @@IDENTITY<br />
<br />
return 0<br />
GO