We have already demonstrated how to set the animations on shapes in PowerPoint. Now Spire.Presentation starts to support set the Animation Effect for the type and time of the animate text. This article will show you how to use IterateType property and IterateTimeValue property for animation Effect to set the type and time of animate text in C#.

Firstly, view the original sample document with animate text effect with "All at once".

Step 1: Create a presentation instance and load the sample document from file.

Presentation ppt = new Presentation();
ppt.LoadFromFile("Sample.pptx",FileFormat.Pptx2010);

Step 2: Set the AnimateType as Letter.

ppt.Slides[0].Timeline.MainSequence[0].IterateType = Spire.Presentation.Drawing.TimeLine.AnimateType.Letter;

Step 3: Set the IterateTimeValue for the animate text.

ppt.Slides[0].Timeline.MainSequence[0].IterateTimeValue = 10;

Step 4: Save the document to file.

ppt.SaveToFile("Result.pptx", FileFormat.Pptx2010);

Effective screenshot of the animation effect for the animate text effect with "by Letter".