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Using the SOLIDWORKS VB.NET Add-in Template to Create a Visual Basic .NET Add-in

This topic describes how to use the SOLIDWORKS VB.NET Add-in Template to create a Visual Basic .NET add-in in Microsoft Visual Studio .NET 2005 or later. This topic also identifies and describes the classes provided by the template. Click a link to read that section.


Creating a Visual Basic .NET Add-in using the SOLIDWORKS VB.NET Add-in Template

  1. Click Start > Programs > Microsoft Visual Studio version_number > Microsoft Visual Studio version_number.

  2. Select Tools > Options > Projects and Solutions > General > Save new projects when created.

  3. Click the New Project button or select File > New > Project.

  4. Select Visual Basic > SwVBAddin from the templates list. 

  5. Type the name of your project in Name.

  6. Type the location of your project in Location.

  7. Click OK.

Wait for the SOLIDWORKS VB.NET Addin Template to set up your add-in's project files and to locate your SOLIDWORKS directory.  

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Examining Visual Basic .NET Add-In Classes

These classes are created by the SOLIDWORKS VB.NET Add-in Template:








This file provides a means to organize and publish assembly-specific information.




This file contains the event handling objects for documents and model views. The DocumentEventHandler object is a base class that exposes the interface and contains code for dealing with ModelView events.

PartEventHandler, AssemblyEventHandler, and DrawingEventHandler are the three object types that can listen for document events. There must be one instance of each class for each open document of that type.

The ModelViewEventHandler object listens for ModelView events. There should be one instance of ModelViewEventHandler for each ModelView in each open document.




This file contains the class that implements the PropertyManager page handler interface. An instance of this object is passed to SOLIDWORKS when creating a PropertyManager page. When a control on the page is manipulated, the corresponding function or subroutine in this object is called.




This file contains the main add-in class. Visual Studio adds the letter n to the default name SwAddin, if more than one project by that name exists in the same location. Examine the code in each region of this file:






Local Variables


Contains the definitions of this class's variables


SOLIDWORKS Registration


Contains functions to register and unregister the add-in


ISwAddin Implementation


Contains ConnectToSW() and DisconnectFromSW() which are the entry and exit points for the add-in


UI Methods


Contains functions and subroutines that define how the add-in behaves within the SOLIDWORKS application


Event Methods


Contains SOLIDWORKS event handling functions and subroutines


Event Handlers


Contains the event callbacks for the SOLIDWORKS object


UI Callbacks


Contains functions and subroutines that are called from the add-in user interface




This file contains the wrapper class and layout methods for the add-in's PropertyManager page. To modify the controls on the PropertyManager page, change the code in the AddControls() subroutine.

Add all controls to group boxes. Group boxes are displayed top to bottom in the order in which they are added to the page. Controls are displayed top to bottom in the order in which they are added to the group box.

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To learn more about add-ins and their menu items and toolbars:

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