Delete MasterSlide Layout

[prven]

When I created a new PowerPoint from Spire.Presentation, I see one master slide with 11 layout slides under that. Is it possible to programatically delete these layout slides from Master slides that are unused? Please let me know. Thanks!

[Betsy.jiang]

Hi prven,

Thanks for your inquiry.
Sorry that Spire.Presentation doesn't support that at present. We will consider adding the new feature in our future upgrade. Once there is any good news, we will let you know.

Sincerely,
Betsy
E-iceblue support team

[Betsy.jiang]

Hi prven,

Glad to inform you that Spire.Presentation supports deleting MasterSlide layout now. Please download Spire.Presentation Pack Hotfix Version:3.12.4 and here is the new feature code:

Code: Select all

                IMasterLayouts.RemoveMasterLayout(i);

For deleting the unused layout, please refer to following code:

Code: Select all

            Presentation ppt = new Presentation();
            IMasterSlide masterSlide = ppt.Masters[0];
            ppt.Slides.Append();
            for (int a = ppt.Masters.Count - 1; a >= 0; a--)
            {
                IMasterLayouts mlayouts = ppt.Masters[a].Layouts;
                ArrayList list = new ArrayList();
                for (int b = 0; b < ppt.Slides.Count; b++)
                {
                    var masterSlideID = ppt.Slides[b].MasterSlideID;
                    ActiveSlide layout = (ActiveSlide)ppt.Slides[b].Layout;
                    if (ppt.Masters[a].SlideID == masterSlideID)
                    {
                        for (int c = mlayouts.Count - 1; c >= 0; c--)
                        {
                            ActiveSlide mlay = (ActiveSlide)mlayouts[c];
                            if (layout.SlideID == mlay.SlideID)
                            {
                                if (!list.Contains(c)) list.Add(c);
                            }
                        }
                    }
                }
                for (int i = mlayouts.Count - 1; i >= 0; i--)
                {
                    //delete the master layout
                    if (!list.Contains(i))
                        mlayouts.RemoveMasterLayout(i);
                }
                //delete the master
                if (mlayouts.Count == 0)
                    ppt.Masters.RemoveAt(a);
            }
            ppt.SaveToFile("15846.pptx", FileFormat.Pptx2010);

Sincerely,
Betsy
E-iceblue support team

[Betsy.jiang]

Hi,

Greetings from E-iceblue.
Do you use the hotfix and the new feature? Has your issue been resolved?

Thanks,
Betsy
E-iceblue support team

[prven]

Yes, the hotfix worked out good and our issue is resolved. Thank you!

[Betsy.jiang]

Hi,

Thanks for your feedback.
Any question, welcome to get it back to us.
Have a nice day

Sincerely,
Betsy
E-iceblue support team