Autodesk Inventor Customization

[#1]

Hello

I have the following rule:

If OD=900 mm And Filter_Type = "Aerob" Then
MultiValue.SetList("FilterSize", 0.2, 0.3, 0.4, 0.5, 2.2, 2.3, 2.4, 2.5)
End If

If OD=900 mm And Filter_Type = "Donaldson DLM" Then
MultiValue.SetList("FilterSize", V3/7S, V4/7S, V8/7S)
End If

 For first condition everything is ok. But when the second one is valid it gives error:

Conversion from string "V3/7" to type 'Double' is not valid.

Maybe I should add that the parameter "FilterSize" was made as Text and multi-value.

And of course I not familiar at all with programming...

What would be the solution?

Thanks

[#2]

I noticed that you are using a variable called '7S'. Could you give me the rest of the code so that I can see how those variables are being initialized? Being that you can't begin an Inventor parameter using a number I assume that it is being declared via a DIM inside of your iLogic. No matter, it may be causing the problem.

I ran a test (switching that to S7) with the below code, and ran into no problems.

'' Here is a test to perform. 
'' The parameter type of all the INVENTOR parameters are as follows. 

' Filter_Type --- Text - Multivalue w/(2) values : ("Filter1", "Filter2") 
' FilterSize --- mm - Multivalue w/(?) values : Is assigned by iLogic below
' OD --- mm - Single Value : currently 900mm 

'Notice that 7S has been changed to S7!
Dim V3, V4, V8, S7 As Double


V3 = 300 mm 
V4 = 400 mm 
V8 = 800 mm
S7 = 7 ul  

If OD=900 mm And Filter_Type = "Filter1" Then
MultiValue.SetList("FilterSize", 0.2, 0.3, 0.4, 0.5, 2.2, 2.3, 2.4, 2.5)
End If

If OD=900 mm And Filter_Type = "Filter2" Then
MultiValue.SetList("FilterSize", V3/S7, V4/S7, V8/S7)
End If

[#3]

Sorry, I was not precise with my description and the code. I have found the mistake.

I will simplify my initial code:

If OD=900 mm And Filter_Type = "Donaldson DLM" Then
MultiValue.SetList("Filter_Size", "V3/7S", "V4/7S")
End If

If OD=900 mm And Filter_Type = "Aerob" Then
MultiValue.SetList("Filter_Size", "0.2", "0.3")
End If

If Filter_Size= 0.2 Then
d1= 100 mm
d2= 200 mm
End If

If Filter_Size= 0.3 Then
d1= 100 mm
d2= 300 mm
End If

If Filter_Size= "V3/7S" Then
d1= 150 mm
d2= 200 mm
End If

If Filter_Size= "V4/7S" Then
d1= 250 mm
d2= 100 mm
End If

 Just because I didn't use double quote in line 9 and 14 for the value of Filter_Size I had this error.

So it should be like this:

If Filter_Size= "0.2" Then

and

If Filter_Size= "0.3" Then

In my first post I didn't wrote the other code which was using the same "Filter_Size". So it was hard to understand.

Thanks anyway for your try!