public bool ValidRazonSocial(string prm_RazonSocial, ref string p_Codi_personaExist, ref string p_Name_personaExist) { int codigoRetorno = -1; try { using (_DBMLPersonasDataContext SQLDC = new _DBMLPersonasDataContext(conexion)) { SQLDC.omgc_P_Persona_Valida ( prm_RazonSocial, ref p_Codi_personaExist, ref p_Name_personaExist ); } if (p_Codi_personaExist == null) { codigoRetorno = 1; } } catch (Exception ex) { throw ex; } return(codigoRetorno == 0 ? true : false); }