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Fire Undo and Redo Pre- and Post-notifications in Assembly Document (VB.NET)

This example shows how to fire Undo and Redo pre- and post-notifications in an assembly document.

' ---------------------------------------------------------------------------

' Preconditions: Open:

' <SolidWorks_install_dir>\samples\tutorial\smartcomponents\stepped_shaft.sldasm.

'

' The base-plate<1> component is selected and then hidden, and

' pre- and post-notifications are fired indicating that an

' Undo has occurred. A Redo is performed and pre- and

' post-notifications are fired for it. Finally another Undo

' is performed (and pre- and post-notifications are fired)

' so that the assembly document returns to its just-opened state.

'

' Postconditions: None

' ---------------------------------------------------------------------------

Imports SolidWorks.Interop.sldworks

Imports SolidWorks.Interop.swconst

Imports System

Imports System.Collections

Imports System.Windows.Forms

Partial Class SolidWorksMacro

    Public WithEvents swAssemblyDoc As AssemblyDoc

    Public Sub main()

        Dim swModel As ModelDoc2

        Dim swModelDocExt As ModelDocExtension

        Dim boolstatus As Boolean

        Dim openAssembly As Hashtable

 

        swModel = swApp.ActiveDoc

        swModelDocExt = swModel.Extension

 

        ' Event notification

        swAssemblyDoc = swModel

        openAssembly = New Hashtable

        AttachEventHandlers()

 

        ' Select a component and hide it

        boolstatus = swModelDocExt.SelectByID2("base_plate-1@stepped_shaft", "COMPONENT", 0, 0, 0, False, 0, Nothing, 0)

        swModel.HideComponent2()

        swModel.ClearSelection2(True)

 

        ' Undo hiding of the component

        ' and fire pre- and post notifications

        swModel.EditUndo2(1)

 

        ' Redo hiding of the component

        ' and fire pre- and post-notifications

        swModel.EditRedo2(1)

 

        ' Undo hiding of the component

        ' so that the assembly document

        ' is unchanged

        swModel.EditUndo2(1)

 

        ' Rebuild model

        swModel.ForceRebuild3(True)

    End Sub

 

    Sub AttachEventHandlers()

        AttachSWEvents()

    End Sub

 

    Sub AttachSWEvents()

        AddHandler swAssemblyDoc.UndoPostNotify, AddressOf Me.swAssembly_UndoPostNotify

        AddHandler swAssemblyDoc.UndoPreNotify, AddressOf Me.swAssembly_UndoPreNotify

        AddHandler swAssemblyDoc.RedoPostNotify, AddressOf Me.swAssembly_RedoPostNotify

        AddHandler swAssemblyDoc.RedoPreNotify, AddressOf Me.swAssembly_RedoPreNotify

    End Sub

 

    Private Function swAssembly_UndoPostNotify() As Integer

        ' Display message after Undo

        ' NOTE: Because the message box may be displayed

        ' behind an opened window, you might not see it.

        ' If so, then check the Taskbar for it.

        MsgBox("An Undo post-notification event has been fired.")

    End Function

 

    Private Function swAssembly_UndoPreNotify() As Integer

        ' Display message after Undo

        ' NOTE: Because the message box may be displayed

        ' behind an opened window, you might not see it.

        ' If so, then check the Taskbar for it.        

        MsgBox("An Undo pre-notification event has been fired.")

    End Function

 

    Private Function swAssembly_RedoPostNotify() As Integer

        ' Display message after Redo

        ' NOTE: Because the message box may be displayed

        ' behind an opened window, you might not see it.

        ' If so, then check the Taskbar for it.

        MsgBox("A Redo post-notification event has been fired.")

    End Function

 

    Private Function swAssembly_RedoPreNotify() As Integer

        ' Display message after Undo

        ' NOTE: Because the message box may be displayed

        ' behind an opened window, you might not see it.

        ' If so, then check the Taskbar for it.

        MsgBox("A Redo pre-notification event has been fired.")

    End Function  

 

''' <summary>

    ''' The SldWorks swApp variable is pre-assigned for you.

    ''' </summary>

    Public swApp As SldWorks

 

End Class



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