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problem accesing output parameter from datalayer

Posted By:      Posted Date: December 04, 2010    Points: 0   Category :ASP.Net


in order to allow my design to keep recently inserted record on a formview i decided to use an output parameter.
Currently I have a data layer helper and a class that allows my table to have crud operations.

I have modified my insert stored procedure to the following:

ALTER PROCEDURE [dbo].[InsertContratos]
 @Contrato int,
 @Persona int,  
     @FechaLegalizacion datetime,
 @Vendedor smallint,
 @Programa smallint,
        @numero char(3),
       @Referencia1Nombre varchar(50)='',
 @Referencia1Apellido varchar(50)='',
 @Referencia1Telefono varchar(20)='',
 @Referencia2Nombre varchar(50)='',
 @Referencia2Apellido varchar(50)='',
 @Referencia2Telefono varchar(20)='',
        @Observaciones Text='',
        @Anulado char(1)='N',
 @ContratoInsertado int OUTPUT 


INSERT INTO contrato
 contnume ,
 contfere ,
 contfele ,

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