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    by Luke Davenport


    You have some iLogic code that exports a file of some kind (STEP file, PDF, DXF etc.) or performs a ‘Save As’ operation. And you want the exported file name to increment with a new version number suffix if an existing file export is found in the export folder.



    Try the simple code below to check for existing files and add a ‘V1’, ‘V2’, ‘V3’ after the filename as required.



    Every company has slightly different requirements for exporting files from Inventor. And therefore there’s no such thing as a ‘one size fits all’ export format. This little bit of code may get you started though.


    Let’s use an example of the tasty turbine model in the picture above (downloaded from Grabcad – thanks to Edward Otter). The file is called ‘Turbine.ipt’. Here’s what the rule will do:


    1)      Find the name of the current Inventor file (e.g. Turbine.ipt)

    2)      Check to see if a file called ‘Turbine_V0.stp’ exists in the same folder as Turbine.ipt.

    1. If it doesn’t – export ‘Turbine_V0.stp’.
    2. If it does – check to see if ‘Turbine_V1.stp’ exists, and keep checking higher numbers until an unused filename is found – e.g. ‘Turbine_V6.stp’ – then export this file.

    3)      Ask the user if they would like to open the export folder to check the results, and open the folder if they click ‘Yes’

    4)      Job done.

    Note that you can easily modify this code depending on which type of file you are exporting. The same principle will work with any file extension that is exportable from Inventor.


    I hope you find this useful – ‘til next time!


    ' Start of iLogic code *******************************************
    Stepfilename = ThisDoc.PathAndFileName(False)
    Counter = 0
    FileExists = True
    'check to see if the file to be exported already exists
    Do While FileExists    
        ' Define name of exported file - note a .stp file extension 
        ' Is currently being used. In this example I am exporting a Step file
        CurrentFile = Stepfilename & "_V" & Counter & ".stp"
        If Dir(CurrentFile) <> "" Then ' The file does exist
            Counter += 1
            FileExists = True
            SaveAs = MessageBox.Show("Export file as '" & CurrentFile & _
            "'?", "Cadline iLogic", _
            MessageBoxButtons.YesNo, MessageBoxIcon.Question, _
            If SaveAs = vbNo Then
            Else ' User says continue
                FileExists = False
            End If
        End If
    ' Put your export or 'save as' code in here ***********************
    ' Get the STEP translator Add-In.
    Dim oSTEPTranslator As TranslatorAddIn
    oSTEPTranslator = ThisApplication.ApplicationAddIns.ItemById _
    Dim oContext As TranslationContext
    oContext = ThisApplication.TransientObjects.CreateTranslationContext
    Dim oOptions As NameValueMap
    oOptions = ThisApplication.TransientObjects.CreateNameValueMap
    If oSTEPTranslator.HasSaveCopyAsOptions(ThisApplication.ActiveDocument _
    , oContext, oOptions) Then
        oOptions.Value("ApplicationProtocolType") = 3
        oContext.Type = IOMechanismEnum.kFileBrowseIOMechanism
        Dim oData As DataMedium
        oData = ThisApplication.TransientObjects.CreateDataMedium
        ' Set export name of STEP file
        oData.FileName = CurrentFile
    oSTEPTranslator.SaveCopyAs(ThisApplication.ActiveDocument, oContext _
    , oOptions, oData)
    End If
    ' End of export code ***********************************************
    ' Ask user if they want to open the export folder
    OpenFolder = MessageBox.Show("Export successful! " & _
    "- open containing folder now?", "Cadline iLogic", _
    MessageBoxButtons.YesNo, _
    If OpenFolder = vbYes Then
        Process.Start("explorer.exe", ThisDoc.Path)
    Else ' User says continue
    End If
    ' End of iLogic code **************************************************



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