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Compilation error when BusinessRule returns System.Data.DataTable
Posted: 28 Apr 09 9:20 PM
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Hi all,
I'm creating a custom external assembly (dll) that takes a ContactId and returns complex data that comes from a sql view in a DataTable. This business rule will be used within a tab to populate several text boxes with data from the DataTable.
I created a new BusinessRule with the following signature:
public static void GetComplexData(IContact contact, out System.Data.DataTable result)
The primary step is as follows:
#region Usings
using System;
using Sage.Entity.Interfaces;
using Sage.Form.Interfaces;
using System.Data;
using MyAssembly;
#endregion Usings
namespace Sage.BusinessRules.CodeSnippets
{
public static partial class ContactBusinessRules
{
public static void GetComplexData( IContact contact, out System.Data.DataTable result)
{
return MyAssembly.getComplexData(contact.Account.Id.ToString());
}
}
}
In the snippet header I have references to both my assembly and System.Data.
When I try to build the project, I get the following error:
IContact.cs(682,24):The type or namespace name 'Data' does not exist in the namespace 'System' (are you missing an assembly reference?)
If I open IContact.cs by double clicking the error, I can see that in the usings of the file System.Data is not there. Does this mean that the return type of a BusinessRule can only be a primitive type? What if I want my business rule to return complex data? Or, is there a way to add "usings" to the generated IContact interface?
My goal is to bring all the data at once, since this implies selecting from a very complex sql view (which as far as I know are not supported for entities).
Thanks |
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