Opening a Presentation described how to use the Presentation class to open a presentation. This article explains how to create and save presentations. The Presentation class holds a presentation’s content. Whether creating a presentation from scratch or modifying an existing one, when finished, you want to save the presentation. With Aspose.Slides for .NET, it can be saved as a file or stream. This article explains how to save a presentation in different ways:
Save Presentation to File
Save a presentation to files by calling the Presentation class Save method. Simply pass the file name and save format to the Save method. The examples that follow show how to save a presentation with Aspose.Slides for .NET using C#.
Save Presentation to Stream
It is possible to save a presentation to a stream by passing an output stream to the Presentation class Save method. There are many types of streams to which a presentation can be saved. In the below example we have created a new Presentation file, add text in shape and Save the presentation to the stream.
Save Presentation with Predefined View Type
Aspose.Slides for .NET provides a facility to set the view type for the generated presentation when it is opened in PowerPoint through the ViewProperties class. The LastView property is used to set the view type by using the ViewType enumerator.
Save Presentation to Strict Open XML Spreadsheet Format
Aspose.Slides allows you to save the presentation in Strict Open XML format. For that purpose, it provides the Aspose.Slides.Export.PptxOptions class where you can set the Conformance property, while saving the presentation file. If you set its value as Conformance.Iso29500_2008_Strict, then the output presentation file will be saved in Strict Open XML format.
The following sample code creates a presentation and saves it in the Strict Open XML Format. While calling the Save method for the presentation, the Aspose.Slides.Export.PptxOptions object is passed into it with the Conformance property set as Conformance.Iso29500_2008_Strict.
Saving Progress Updates in Percentage
New IProgressCallback interface has been added to ISaveOptions interface and SaveOptions abstract class. IProgressCallback interface represents a callback object for saving progress updates in percentage.
The following code snippets below shows how to use IProgressCallback interface: