topic Re: C# Apprentice Iterate through SubAssembly in Inventor Programming Forum

C# Apprentice Iterate through SubAssembly

Anonymous — Mon, 27 Apr 2020 09:21:13 GMT

Hallo,

i need to iterate through the SubAssemblies or SubOccurrences of Main Assembly, i know it possible in VB.Net but i want to do the same in C#.net.

In VB.Net as Following :

Public Sub TraverseAssemblySample()
    ' Get the active assembly.
    Dim oAsmDoc As AssemblyDocument
    Set oAsmDoc = ThisApplication.ActiveDocument
    Debug.Print oAsmDoc.DisplayName

    ' Call the function that does the recursion.
    Call TraverseAssembly(oAsmDoc.ComponentDefinition.Occurrences, 1)
End Sub

Private Sub TraverseAssembly(Occurrences As ComponentOccurrences, _
                             Level As Integer)
    ' Iterate through all of the occurrence in this collection. This
    ' represents the occurrences at the top level of an assembly.
    Dim oOcc As ComponentOccurrence
    For Each oOcc In Occurrences
        ' Print the name of the current occurrence.
        Debug.Print Space(Level * 3) & oOcc.Name

        ' Check to see if this occurrence represents a subassembly
        ' and recursively call this function to traverse through it.
        If oOcc.DefinitionDocumentType = kAssemblyDocumentObject Then
            Call TraverseAssembly(oOcc.SubOccurrences, Level + 1)
        End If
    Next
End Sub

Anyone can help ?

Thanks

The result should be like that

Re: C# Apprentice Iterate through SubAssembly

ianteneth — Mon, 27 Apr 2020 17:15:33 GMT

Hi @Anonymous,

Here is your code converted to C#. Also, remember that there is an Inventor forum dedicated to programming and customization like this. Here is the link to it.

https://forums.autodesk.com/t5/inventor-customization/bd-p/120

Output:

Converted Code:

// Get instance of Inventor Application application = System.Runtime.InteropServices.Marshal.GetActiveObject("Inventor.Application") as Application; // Get the active assembly. AssemblyDocument assembly = application.ActiveDocument as AssemblyDocument; Console.WriteLine(assembly.DisplayName); // Call the function that does the recursion TraverseAssembly(assembly.ComponentDefinition.Occurrences, 1); private static void TraverseAssembly(ComponentOccurrences occurrences, int level) { // Iterate through all of the occurrences in this collection. // This represents the occurrences at the top level of an assembly. foreach(ComponentOccurrence occurrence in occurrences) { // Print the name of the occurrence. Console.WriteLine(new String(' ', level) + occurrence.Name); // Check to see if this occurrence represenst a subassembly. // Recursively call this function to traverse through it. if(occurrence.DefinitionDocumentType == DocumentTypeEnum.kAssemblyDocumentObject) { TraverseSubAssembly(occurrence.SubOccurrences, level + 1); } } } private static void TraverseSubAssembly(ComponentOccurrencesEnumerator occurrences, int level) { // Iterate through all of the occurrences in this collection. // This represents the occurrences at the top level of an assembly. foreach (ComponentOccurrence occurrence in occurrences) { // Print the name of the occurrence. Console.WriteLine(new String(' ', level) + occurrence.Name); // Check to see if this occurrence represenst a subassembly. // Recursively call this function to traverse through it. if (occurrence.DefinitionDocumentType == DocumentTypeEnum.kAssemblyDocumentObject) { TraverseSubAssembly(occurrence.SubOccurrences, level + 1); } } }

Re: C# Apprentice Iterate through SubAssembly

Anonymous — Tue, 28 Apr 2020 06:23:05 GMT

Hi @ianteneth

Thank you very much.

Re: C# Apprentice Iterate through SubAssembly

Anonymous — Thu, 30 Apr 2020 07:15:19 GMT

Hi,

@ianteneth
unfortunately it doesn't work in Assembly with multisub Assembly.
I got this Error Message.

Error: 0x80004005 (E_FAIL)

static void Main(string[] args) { Inventor.ApprenticeServerDocument assembly; Inventor.ApprenticeServerComponent oSvr = new Inventor.ApprenticeServerComponent(); assembly = oSvr.Open(@"C:\This_Inventor_Project\Parts\Baugruppe2.iam"); Console.WriteLine(assembly.DisplayName); // Call the function that does the recursion TraverseAssembly(assembly.ComponentDefinition.Occurrences, 1); } private static void TraverseAssembly(Inventor.ComponentOccurrences occurrences, int level) { // Iterate through all of the occurrences in this collection. // This represents the occurrences at the top level of an assembly. foreach (Inventor.ComponentOccurrence occurrence in occurrences) { // Print the name of the occurrence. Console.WriteLine(new String(' ', level) + occurrence.Name); // Check to see if this occurrence represenst a subassembly. // Recursively call this function to traverse through it. if (occurrence.DefinitionDocumentType == Inventor.DocumentTypeEnum.kAssemblyDocumentObject) { TraverseSubAssembly(occurrence.SubOccurrences, level + 1); } } } private static void TraverseSubAssembly(Inventor.ComponentOccurrencesEnumerator occurrences, int level) { // Iterate through all of the occurrences in this collection. // This represents the occurrences at the top level of an assembly. foreach (Inventor.ComponentOccurrence occurrence in occurrences) { // Print the name of the occurrence. Console.WriteLine(new String(' ', level) + occurrence.Name); // Check to see if this occurrence represenst a subassembly. // Recursively call this function to traverse through it. if (occurrence.DefinitionDocumentType == Inventor.DocumentTypeEnum.kAssemblyDocumentObject) { TraverseSubAssembly(occurrence.SubOccurrences, level + 1); } } }

Re: C# Apprentice Iterate through SubAssembly

ianteneth — Thu, 30 Apr 2020 12:38:14 GMT

Are there by chance suppressed parts in this assembly? I tested this on my computer with a suppressed subassembly and I received the same error. Below is the updated code to skip over suppressed components. See if that fixes the error.

static void Main(string[] args) { // Get instance of Inventor Application application = System.Runtime.InteropServices.Marshal.GetActiveObject("Inventor.Application") as Application; // Get the active assembly. AssemblyDocument assembly = application.ActiveDocument as AssemblyDocument; Console.WriteLine(assembly.DisplayName); // Call the function that does the recursion TraverseAssembly(assembly.ComponentDefinition.Occurrences, 1); Console.ReadKey(); } private static void TraverseAssembly(ComponentOccurrences occurrences, int level) { // Iterate through all of the occurrences in this collection. // This represents the occurrences at the top level of an assembly. foreach(ComponentOccurrence occurrence in occurrences) { // Skip if occurrence is suppressed if (!occurrence.Suppressed) { // Print the name of the occurrence. Console.WriteLine(new String(' ', level) + occurrence.Name); // Check to see if this occurrence represenst a subassembly. // Recursively call this function to traverse through it. if (occurrence.DefinitionDocumentType == DocumentTypeEnum.kAssemblyDocumentObject) { TraverseSubAssembly(occurrence.SubOccurrences, level + 4); } } } } private static void TraverseSubAssembly(ComponentOccurrencesEnumerator occurrences, int level) { // Iterate through all of the occurrences in this collection. // This represents the occurrences at the top level of an assembly. foreach (ComponentOccurrence occurrence in occurrences) { // Skip if occurrence is suppressed if (!occurrence.Suppressed) { // Print the name of the occurrence. Console.WriteLine(new String(' ', level) + occurrence.Name); // Check to see if this occurrence represenst a subassembly. // Recursively call this function to traverse through it. if (occurrence.DefinitionDocumentType == DocumentTypeEnum.kAssemblyDocumentObject) { TraverseSubAssembly(occurrence.SubOccurrences, level + 4); } } } }

Re: C# Apprentice Iterate through SubAssembly

Anonymous — Thu, 30 Apr 2020 18:51:38 GMT

Hi @ianteneth ,

Thank you so much for the speedy reply.

I dont have suppressed parts in this assembly, I got the same Error with your updated code.

Re: C# Apprentice Iterate through SubAssembly

ianteneth — Thu, 30 Apr 2020 19:37:15 GMT

Hmm. I just successfully tested this code on a decently big nested assembly. Below is some output from that. Can you click the "View Details" link in the error and expand a few sections and post a screenshot? And I am guessing you cannot share the files?

Re: C# Apprentice Iterate through SubAssembly

Anonymous — Thu, 30 Apr 2020 22:44:17 GMT

u use the API in you code, i tested this code with API it worked fine, but with Apprentice Server i get Error, could you please test it with Apprentice Server (same as mycode) you will get the same Error.

See please the Screenshot in attached.

Thanks.

Re: C# Apprentice Iterate through SubAssembly

ianteneth — Fri, 01 May 2020 13:59:54 GMT

I am just noticing that you are asking about Apprentice in the title... Sorry about that! I am not familiar with Apprentice Server. Maybe we can find someone on here that is familiar with that. Maybe @WCrihfield can help

Re: C# Apprentice Iterate through SubAssembly

WCrihfield — Fri, 01 May 2020 15:31:29 GMT

Nope. I haven't worked with Apprentice either. Though, I could be wrong, but I think those who don't work with Apprentice, can still access and use its functionality, but those whose default is Apprentice, can only use Apprentice. I've heard it is faster to use for certain things, too, but as I said, I don't really know that much about the differences, to give much advice about the specifics. Sorry.

Re: C# Apprentice Iterate through SubAssembly

ianteneth — Fri, 01 May 2020 16:36:48 GMT

@Anonymoussince I didn't address the Apprentice Server aspect of your question I might help get others to answer if you uncheck my earlier answer as the solution. I think the 3 dots to the top right of my post will let you mark it as "Not Solution"?