Problem with a DataSet

[dadyfer]

Hi,
I'm working in Visual Studio .NET 2003 with NetCOBOL V 1.1 and C#. I have found out a problem to Pass a DataSet from C# to Cobol. In my cobol program I don't receve data.
Moreover I don't succeed to read a DataSet in Cobol, and move every record in a Cobol structure. Did you help me?
Did you have some examples?
Thanks
Daniela

My program:
IDENTIFICATION DIVISION.
CLASS-ID. CBDataSet AS "CobolDataSet.CBDataSet".
ENVIRONMENT DIVISION.
CONFIGURATION SECTION.
SPECIAL-NAMES.
REPOSITORY.
CLASS CLASS-DATASET AS "System.Data.DataSet"
CLASS CLASS-DATAROW AS "System.Data.DataRow"
CLASS CLASS-DATAROWS AS "System.Data.DataRow[]"
CLASS CLASS-DATACOLUMN AS "System.Data.DataColumn"
CLASS CLASS-DATATABLE AS "System.Data.DataTable"
CLASS CLASS-DATARELATION AS "System.Data.DataRelation"
PROPERTY PROP-TABLES AS "Tables". STATIC.
DATA DIVISION.
WORKING-STORAGE SECTION.
PROCEDURE DIVISION.
END STATIC.
OBJECT.
DATA DIVISION.
WORKING-STORAGE SECTION.
*******************************
* Tabella sedi INPS
*************************

01 REC-TABSEDI.
05 SEI-CODSEDINPS PIC S9(04) COMP-3.
05 SEI-DESCRIZ PIC X(025).
05 SEI-VIA PIC X(040).
05 SEI-NUMERO PIC X(005).
05 SEI-CAP PIC X(005).
05 SEI-COMUNE PIC X(025).
05 SEI-PROVINC PIC X(002).
05 SEI-TELEFONO PIC X(015).
01 IND PIC 9(4).

PROCEDURE DIVISION.
METHOD-ID. ScomponiDataSet.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 MySQLDataTable OBJECT REFERENCE CLASS-DATATABLE.
01 MyDataRow OBJECT REFERENCE CLASS-DATAROW.
01 MyDataRows OBJECT REFERENCE CLASS-DATAROWS.
01 MyDataRelation OBJECT REFERENCE CLASS-DATARELATION.
LINKAGE SECTION.
01 MySQLDataSet OBJECT REFERENCE CLASS-DATASET.
PROCEDURE DIVISION USING MySQLDataSet.
INVOKE PROP-TABLES of MySqlDataSet "get_Item"
USING BY VALUE 0 RETURNING MySQLDataTable.
INVOKE MySQLDataTable "NewRow" RETURNING MyDataRow.
INVOKE MyDataRow "GetChildRows"
USING BY VALUE MyDataRelation
RETURNING MyDataRows.
END METHOD ScomponiDataSet.
END OBJECT.
END CLASS CBDataSet.