topic Re: Determine if Parameter Exists in Each Document in Inventor Programming Forum

Determine if Parameter Exists in Each Document

C_Haines_ENG — Thu, 13 Oct 2022 15:27:10 GMT

I have seen very similar questions posted everywhere, however I keep getting a "ComponentDefinition" error whenever i run the below code:

Sub Main()
	Dim oOpenDocs As DocumentsEnumerator = ThisApplication.Documents.VisibleDocuments
	For Each oDoc As Document In oOpenDocs
		
		If oDoc.DocumentType = Inventor.DocumentTypeEnum.kDrawingDocumentObject
			
		Dim oParas As UserParameters = oDoc.Document.ComponentDefinition.Parameters.UserParameters
		Dim oPara As UserParameter

		Try
   	 		oPara = oParas.Item("Drawing Type")
		Catch
    		oPara = oParas.AddByValue("Drawing Type", "Part", UnitsTypeEnum.kTextUnits)
		End Try
			
		iLogicVb.RunExternalRule("AutoCAD Export.iLogicVb")
		End If
	Next
	
End Sub

I understand the external rule command line required the full directory I have removed it just for this post, the AutoCAD Export vb code will read a parameter called "Drawing Type" to determine if its a part or assembly drawing.

However on older iterations of my templates I have used different parameters.

Id like to check each drawing file thats open if "Drawing Type" paramter exists and if not create it, however everytime I run the rule it gives me this error: Public member 'Document' on type '_DocumentClass' not found.

Other posts suggest changing the command to ThisDoc.ActiveDocument but I fear this will just take the value of the first page and will not continuously do it for each drawing missing this parameter.

Re: Determine if Parameter Exists in Each Document

WCrihfield — Thu, 13 Oct 2022 16:33:10 GMT

Hi @C_Haines_ENG. Since you are inspecting a drawing, there is no "ComponentDefinition" in the path of getting to its Parameters. Just remove that from your line of code which is getting the parameters.

Dim oParas As UserParameters = oDoc.Parameters.UserParameters

Re: Determine if Parameter Exists in Each Document

C_Haines_ENG — Thu, 13 Oct 2022 16:43:02 GMT

Unspecified error (Exception from HRESULT: 0x80004005 (E_FAIL))

😕 Very frustrating.

Re: Determine if Parameter Exists in Each Document

WCrihfield — Thu, 13 Oct 2022 16:51:38 GMT

I think I see something else that would be problematic, now that I give it another look. Parameter names can not have spaces in them. I usually put an underscore ("_") where I would normally have a space in my parameter names. So try changing "Drawing Type" to "Drawing_Type".

Re: Determine if Parameter Exists in Each Document

C_Haines_ENG — Thu, 13 Oct 2022 16:53:52 GMT

Ah youre right im dumb, the Parameter doesnt even have an underscore in it.

Thank you.