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Fire Event After Selection Made (VB.NET)

This example shows how to fire an event after a selection is made in a part, assembly, or drawing document.

' Preconditions:
' 1. Part, assembly, or drawing document
'    is active.
' 2. Run this macro (press F5 and click Run).
' Postconditions:
' 1. Select an entity.
' 2. Message box is displayed confirming your
'    selection. To open the message box, click
'    its Windows taskbar button.

' NOTE: Tools > Options > Stop VSTA debugger on macro exit
'       must not be selected for this macro to run to
'       completion.
Imports SolidWorks.Interop.sldworks
Imports SolidWorks.Interop.swconst
Imports System

Partial Class SolidWorksMacro

Public WithEvents pDoc As PartDoc
Public WithEvents aDoc As AssemblyDoc
Public WithEvents dDoc As DrawingDoc

Public Sub main()

Dim swModel As ModelDoc2

        swModel = swApp.ActiveDoc

' Determine the document type

        ' and set up event handlers
        If swModel.GetType = swDocumentTypes_e.swDocPART Then
            pDoc = swModel
ElseIf swModel.GetType = swDocumentTypes_e.swDocASSEMBLY Then
            aDoc = swModel
ElseIf swModel.GetType = swDocumentTypes_e.swDocDRAWING Then
            dDoc = swModel
End If


End Sub

    Sub AttachEventHandlers()
End Sub

    Sub AttachSWEvents()
If Not pDoc Is Nothing Then
            AddHandler pDoc.UserSelectionPostNotify, AddressOf Me.pDoc_UserSelectionPostNotify
End If

        If Not aDoc Is Nothing Then
            AddHandler aDoc.UserSelectionPostNotify, AddressOf Me.aDoc_UserSelectionPostNotify
End If

        If Not dDoc Is Nothing Then
            AddHandler dDoc.UserSelectionPostNotify, AddressOf Me.dDoc_UserSelectionPostNotify
End If

    End Sub

    Private Function pDoc_UserSelectionPostNotify() As Integer
        MsgBox("Entity selected in part document.")
End Function

    Public Function aDoc_UserSelectionPostNotify() As Integer
        MsgBox("Entity selected in assembly document.")
End Function

    Private Function dDoc_UserSelectionPostNotify() As Integer
        MsgBox("Entity selected in drawing document.")
End Function

    ''' <summary>
    ''' The SldWorks swApp variable is pre-assigned for you.
    ''' </summary>
    Public swApp As SldWorks


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