# Nested Classes as generated by .Net Wrapper **URL:** \ **Category:** Forum\ **Tags:** Mainframe-Integration, EntireX\ **Created:** [June 11, 2009, 4:22am UTC](https://techcommunity.softwareag.com/t/nested-classes-as-generated-by-net-wrapper/90404 "2009-06-11T04:22:39Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![JHCloete](https://avatars.discourse-cdn.com/v4/letter/j/0ea827/32.png) [@JHCloete](https://techcommunity.softwareag.com/u/JHCloete)\ **Post date:** [June 11, 2009, 4:22am UTC](https://techcommunity.softwareag.com/t/nested-classes-as-generated-by-net-wrapper/90404/1 "2009-06-11T04:22:39Z")
I have run into a slight problem where I have defined a group array in my Natural progam on the server side. In Visual Studio 2008 using [VB.Net](http://VB.Net) it will not allow me to address the class DetailData. I can however see OutputParm.LineCntA. but not OutputParm.DetailData Any suggestions will be appreciated. The code is as follows: 1 MESSAGE\_DATA Out /\* out 2 PROGRAM\_ID (A8) 2 DATE (A10) 2 TIME (A10) 2 USERDATA (A64) /\* user defined 2 RETURN\_CODE (A1) 2 MSG\_NR (N4) 2 MESSAGE (A65) /\* Message Information 1 INPUT\_PARM 2 NAME (A65) 2 LIC\_NO (A8) \* 1 OUTPUT\_PARM 2 LINE\_CNT\_A (A3) 2 DETAIL\_DATA (/1:50) 3 NAME\_TP (A8) 3 NAME (A65) 3 LIC\_NO\_A (A8) 3 CITY (A25) 3 STATUS (A10) 3 LAST\_NAME (A65) The .Net Wrapper generates the following Class with nested a nested Class. #region Groups for LIBRARY ‘LBRPCLIC’, PROGRAM ‘N69000L0’ public class N69000l0 { public class MessageData { [SendAs(IdlType.A, Length=8f, Id=0, Trim=false)]public StringBuilder programId ; [SendAs(IdlType.A, Length=10f, Id=1, Trim=false)]public StringBuilder date ; [SendAs(IdlType.A, Length=10f, Id=2, Trim=false)]public StringBuilder time ; [SendAs(IdlType.A, Length=64f, Id=3, Trim=false)]public StringBuilder userdata ; [SendAs(IdlType.A, Length=1f, Id=4, Trim=false)]public StringBuilder returnCode ; [SendAs(IdlType.N, preDecimal=4, postDecimal=0, Id=5)]public decimal msgNr; [SendAs(IdlType.A, Length=65f, Id=6, Trim=false)]public StringBuilder message ; } public class InputParm { [SendAs(IdlType.A, Length=65f, Id=0, Trim=false)]public StringBuilder name ; [SendAs(IdlType.A, Length=8f, Id=1, Trim=false)]public StringBuilder licNo ; } public class OutputParm { [SendAs(IdlType.A, Length=3f, Id=0, Trim=false)]public StringBuilder lineCntA ; [SendAs(IdlType.Group, Id=1, Dim=50f)]public DetailData detailData = (DetailData)Construction.GroupArray(typeof(DetailData), 50 , 0 , 0 ); public class DetailData { [SendAs(IdlType.A, Length=8f, Id=0, Trim=false)]public StringBuilder nameTp ; [SendAs(IdlType.A, Length=65f, Id=1, Trim=false)]public StringBuilder name ; [SendAs(IdlType.A, Length=8f, Id=2, Trim=false)]public StringBuilder licNoA ; [SendAs(IdlType.A, Length=25f, Id=3, Trim=false)]public StringBuilder city ; [SendAs(IdlType.A, Length=10f, Id=4, Trim=false)]public StringBuilder status ; [SendAs(IdlType.A, Length=65f, Id=5, Trim=false)]public StringBuilder lastName ; } } } Thanks Hennie. +1 916 600 0789 ---
**Author:** ![Dietmar\_Gartner](https://sea1.discourse-cdn.com/techcommunity/user_avatar/techcommunity.softwareag.com/dietmar_gartner/32/127_2.png) [@Dietmar\_Gartner](https://techcommunity.softwareag.com/u/Dietmar_Gartner)\ **Post date:** [July 7, 2009, 6:40pm UTC](https://techcommunity.softwareag.com/t/nested-classes-as-generated-by-net-wrapper/90404/2 "2009-07-07T18:40:51Z")
Hi Hennie, there are some special considerations with nested classes and [VB.NET](http://VB.NET) which is not case-sensitive and thus can run into name conflicts. To avoid this you can define a ‘Class name prefix for inner classes’ in the properties of the IDL file. Regards, Dietmar ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [April 2, 2021, 2:57pm UTC](https://techcommunity.softwareag.com/t/nested-classes-as-generated-by-net-wrapper/90404/3 "2021-04-02T14:57:08Z")