Insert PowerPoint Slide w/ Theme From File Using VSTO (C#)

Question

Is it possible to insert a new slide into an existing presentation, retaining the theme of both the new slide and the existing presentation?

For example, if I am editing Presentation A which uses Theme A and I insert a slide from Presentation B which uses Theme B, the end result should be that Presentation A now has the following slides:

Presentation A

• Slide A (Theme A)
• Slide B (Theme B)

When I attempt to do the following, the text from the slide file (Presentation B) is inserted into the existing Presentation A, but the graphics and formatting are not inserted:

var presentationA = Globals.ThisAddIn.Application.ActivePresentation;
presentationA.Slides.InsertFromFile(@"C:\\SlideTemplates\PresentationB.pptx", 0);

Here is what the Presentation B slide looks like (i.e., the slide I want to insert into the Presenation A):

B

But here is what it looks like once inserted:

I'm using Visual Studio 2017 and Office 2016 on Windows 10.

Answer 1

Please re-read the original post. They are inserting slides programmatically using C#, not manually.

Answer 2

Hello ImNoScrub, it is a pleasure to assist you today.

Indeed you can bring over the theme from one slide of a presentation to another with a different theme. Go to New Slide drop-down box > Reuse Slides > Browse file and search for the presentation you want the slide from > Select the presentation and open > Keep source formatting > Select the slide from the presentation by double-clicking.

If you would like to change a slide to a different theme than the presentation, go to Design > Hover over the theme you want > right-click > Apply to Selected Slides

Hope this helps!

Answer 3

I suggest that you also post your question on the Microsoft TechNet forum. It has additional technical experts that may also help you.

https://social.technet.microsoft.com/Forums/en-...

If you post there, you will be posting on two forums and can get expert replies from both forums.