Create the Visual Basic.NET Subassembly Module

Start by creating the module for your subassembly. You can add a new module to the C3DStockSubassemblies project, or you can create your own .NET subassembly project and add the new class module there. New projects should use the Visual Studio "Class Library" template, and should reference the following files:

• acdbmgd.dll
• acmgd.dll
• AecBaseMgd.dll
• AeccDbMgd.dll

Be sure to include CodeSpecific.vb, SATemplate.vb, and Utilties.vb in your project as well.

Add the following framework to the Visual Basic subassembly class module:

Public Class UserDefinedSA
Inherits SATemplate
    ' Member Variables.
    Protected Overrides Sub GetLogicalNamesImplement(ByVal corridorState As Autodesk.Civil.Runtime.CorridorState)
        ' Todo
    End Sub
    Protected Overrides Sub GetInputParametersImplement(ByVal corridorState As CorridorState)
        ' Todo
    End Sub
    Protected Overrides Sub GetOutputParametersImplement(ByVal corridorState As CorridorState)
        ' Todo
    End Sub
    Protected Overrides Sub DrawImplement(ByVal corridorState As CorridorState)
         ' Todo
    End Sub
End Class

Note that:

• The class must inherit from SATemplate.
• You must override the DrawImplement() method, otherwise the subassembly will do nothing.
• The other overridden methods may be removed if they are not used.
• You can add your own functions and subroutines within the class's scope.