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Valued Contributor
Valued Contributor

Hello everyone,


I am trying to get the list of all variables from variable list that are connected to an excel list, but i keep getting an exception "Unable to cast COM object of type 'System.__ComObject' to class type "SolidEdgeFramework.variable".


here is my code:


Dim seApp As SolidEdgeFramework.Application

Dim seDocs As SolidEdgeFramework.Documents

Dim ASMdoc As SolidEdgeAssembly.AssemblyDocument

Dim seVariables As SolidEdgeFramework.Variables = Nothing

Dim objVarList As SolidEdgeFramework.VariableList = Nothing

Dim seVariable As SolidEdgeFramework.variable = Nothing





seApp = CType(Marshal.GetActiveObject("SolidEdge.Application"), SolidEdgeFramework.Application)

Catch ex As Exception

If Err.Number <> 0 Then


seApp = CType(CreateObject("SolidEdge.Application"), SolidEdgeFramework.Application)

End If


seDocs = seApp.Documents

End Try


ASMdoc = CType(seDocs.Open(FileName), SolidEdgeAssembly.AssemblyDocument)

seVariables = CType(ASMdoc.Variables, SolidEdgeFramework.Variables)

objVarList = CType(seVariables.Query("*"), SolidEdgeFramework.VariableList)


For n = 1 To objVarList.Count


seVariable = CType(objVarList.item(n), SolidEdgeFramework.variable) 'here I am getting an exception

Formula = seVariable.Formula

VarName = seVariable.Name

If Formula <> "" AndAlso Formula.Substring(0, 1) = "@" Then

xlWb.Range("A" & k).Value = VarName

xlWb.Range("B" & k).Value = Formula

xlWb.Range("C" & k).Value = FileName

k = k + 1

End If

Catch ex As Exception


End Try





Does someone have an idea what is wrong with my code?.. Any help is highly appreciated...


Best regards, salwadora


Posted by: Salwadora
Post date: 2/4/2013 5:01:35 AM



Valued Contributor
Valued Contributor



the objects in the VariableList may have be of 3 different types (at least these 3 I have already seen):

* variable

* Dimension

* AsmRefPlane (only in Assembly environment)

It is quite probable, that your object is one of the second or third type!!


Posted by: Martin Bernhard
Post date: 2/4/2013 5:03:01 PM


Valued Contributor
Valued Contributor

Here is the answer. I wrote this quick so it doesn't necessarily represent best practices but you'll get the idea. Working with variables suck!


Also note my comments at the top of the code.



[code type=vbnet]

Imports System.Runtime.InteropServices


' .NET Framework 4

' Embed Interop Types = False

Module Module1


Sub Main()

Dim objApplication As SolidEdgeFramework.Application = Nothing

Dim objAssemblyDocument As SolidEdgeAssembly.AssemblyDocument = Nothing

Dim objVariables As SolidEdgeFramework.Variables = Nothing

Dim objVariablesList As SolidEdgeFramework.VariableList = Nothing

Dim i As Integer


objApplication = CType(Marshal.GetActiveObject("SolidEdge.Application"), SolidEdgeFramework.Application)

objAssemblyDocument = CType(objApplication.ActiveDocument, SolidEdgeAssembly.AssemblyDocument)

objVariables = CType(objAssemblyDocument.Variables, SolidEdgeFramework.Variables)

objVariablesList = objVariables.Query("*")


For i = 1 To objVariablesList.Count

Dim objVariableListItem As Object

Dim objectType As SolidEdgeConstants.ObjectType


objVariableListItem = objVariablesList.Item(i)


' .Type property is the key to the whole thing.

' Maps to SolidEdgeConstants.ObjectType.

objectType = objVariableListItem.Type


Dim objDimension As SolidEdgeFrameworkSupport.Dimension = Nothing

Dim objVariable As SolidEdgeFramework.variable = Nothing


Select Case objectType

Case SolidEdgeConstants.ObjectType.igDimension

objDimension = CType(objVariableListItem, SolidEdgeFrameworkSupport.Dimension)

Case SolidEdgeConstants.ObjectType.igVariable

objVariable = CType(objVariableListItem, SolidEdgeFramework.variable)

End Select


End Sub


End Module



Posted by: Jason Newell
Post date: 2/5/2013 2:24:09 AM


Valued Contributor
Valued Contributor

Thank you both so much, the solution worked perfectly for me Smiley Happy

You were absolutely right, I was getting an exception whenever I tried to make a variable object out of dimension. How could I miss that?


Guys, you are the best!




Posted by: Salwadora
Post date: 2/5/2013 3:43:41 AM