topic Re: Is it me or c sharp? I'm leaning towards me... AddUsingSheetFormat -->2026 in Inventor Programming Forum

Is it me or c sharp? I'm leaning towards me... AddUsingSheetFormat -->2026

Tiffany_Hayden_ — Tue, 01 Sep 2026 18:43:42 GMT

I'm having an issue not "having" to give the model doc in AddUsingSheeetFormat in 2026.

If I don't give it the modeldoc it will give me an error parameter incorrect.

               object missing = Type.Missing;

               string activeDocPath = ActiveDrawing.ReferencedDocuments[1].FullFileName;

               Document modelDoc = (Document)invApp.Documents.Open(activeDocPath, false) ;
               Sheet newSheet = drawingSheets.AddUsingSheetFormat(sheetFormat, modelDoc, "", null, null, null);

But if I use the model doc it adds a view to the sheet and a Parts list automatically. Is this new functionality? Or am I just using the API wrong.

I'd like to do this.

                Sheet newSheet = drawingSheets.AddUsingSheetFormat(sheetFormat, null, "", null, null, null);

Before you ask. 🙂 I have validated that my sheetformat exists and is pointing to the correct one. There are no prompts when adding a sheet manually.

Thanks for any help!

Tiffany

Re: Is it me or c sharp? I'm leaning towards me... AddUsingSheetFormat -->2026

hollypapp65 — Tue, 01 Sep 2026 20:04:44 GMT

Try:

Sheet newSheet = drawingSheets.AddUsingSheetFormat(sheetFormat)

Re: Is it me or c sharp? I'm leaning towards me... AddUsingSheetFormat -->2026

Tiffany_Hayden_ — Tue, 01 Sep 2026 20:39:20 GMT

I've tried that too. I read that but I'm not sure how you go about not using the model doc as the second input. Is there a workaround?

Re: Is it me or c sharp? I'm leaning towards me... AddUsingSheetFormat -->2026

Tiffany_Hayden_ — Tue, 01 Sep 2026 21:25:49 GMT

It looks as though this pops up when you create a sheet from the sheet format; the model doc is required. The API documentation doesn't make this clear. But that's how it goes sometimes.

The fix is to create a sheet format off of a blank sheet created from the original format, doing that will no longer require the model document as input.

Steps:

Create new sheet from drawing right click create sheet.

Right click on new sheet

Create Sheet format

Rename new Sheet format

Save

In code use new sheet format.