Knowledgebase (2343)
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class Program
{
static void Main(string[] args)
{
MoveSlide(@"..\..\Documents\Myppt13.pptx", 0, 1);
}
// Counting the slides in the presentation.
public static int CountSlides(string presentationFile)
{
// Open the presentation as read-only.
using (PresentationDocument presentationDocument = PresentationDocument.Open(presentationFile, false))
{
// Pass the presentation to the next CountSlides method
// and return the slide count.
return CountSlides(presentationDocument);
}
}
// Count the slides in the presentation.
public static int CountSlides(PresentationDocument presentationDocument)
{
// Check for a null document object.
if (presentationDocument == null)
{
throw new ArgumentNullException("presentationDocument");
}
int slidesCount = 0;
// Get the presentation part of document.
PresentationPart presentationPart = presentationDocument.PresentationPart;
// Get the slide count from the SlideParts.
if (presentationPart != null)
{
slidesCount = presentationPart.SlideParts.Count();
}
// Return the slide count to the previous method.
return slidesCount;
}
// Move a slide to a different position in the slide order in the presentation.
public static void MoveSlide(string presentationFile, int from, int to)
{
using (PresentationDocument presentationDocument = PresentationDocument.Open(presentationFile, true))
{
MoveSlide(presentationDocument, from, to);
}
}
// Move a slide to a different position in the slide order in the presentation.
public static void MoveSlide(PresentationDocument presentationDocument, int from, int to)
{
if (presentationDocument == null)
{
throw new ArgumentNullException("presentationDocument");
}
// Call the CountSlides method to get the number of slides in the presentation.
int slidesCount = CountSlides(presentationDocument);
// Verify that both from and to positions are within range and different from one another.
if (from < 0 || from >= slidesCount)
{
throw new ArgumentOutOfRangeException("from");
}
if (to < 0 || from >= slidesCount || to == from)
{
throw new ArgumentOutOfRangeException("to");
}
// Get the presentation part from the presentation document.
PresentationPart presentationPart = presentationDocument.PresentationPart;
// The slide count is not zero, so the presentation must contain slides.
Presentation presentation = presentationPart.Presentation;
SlideIdList slideIdList = presentation.SlideIdList;
// Get the slide ID of the source slide.
SlideId sourceSlide = slideIdList.ChildElements[from] as SlideId;
SlideId targetSlide = null;
// Identify the position of the target slide after which to move the source slide.
if (to == 0)
{
targetSlide = null;
}
if (from < to)
{
targetSlide = slideIdList.ChildElements[to] as SlideId;
}
else
{
targetSlide = slideIdList.ChildElements[to - 1] as SlideId;
}
// Remove the source slide from its current position.
sourceSlide.Remove();
// Insert the source slide at its new position after the target slide.
slideIdList.InsertAfter(sourceSlide, targetSlide);
// Save the modified presentation.
presentation.Save();
}
}
Published in
OpenXML
class Program
{
static void Main(string[] args)
{
string sourceFile = @"..\..\Documents\Myppt12.pptx";
string targetFile = @"..\..\Documents\Myppt11.pptx";
MoveParagraphToPresentation(sourceFile, targetFile);
}
// Moves a paragraph range in a TextBody shape in the source document
// to another TextBody shape in the target document.
public static void MoveParagraphToPresentation(string sourceFile, string targetFile)
{
// Open the source file as read/write.
using (PresentationDocument sourceDoc = PresentationDocument.Open(sourceFile, true))
{
// Open the target file as read/write.
using (PresentationDocument targetDoc = PresentationDocument.Open(targetFile, true))
{
// Get the first slide in the source presentation.
SlidePart slide1 = GetFirstSlide(sourceDoc);
// Get the first TextBody shape in it.
TextBody textBody1 = slide1.Slide.Descendants().First();
// Get the first paragraph in the TextBody shape.
// Note: "Drawing" is the alias of namespace DocumentFormat.OpenXml.Drawing
Drawing.Paragraph p1 = textBody1.Elements().First();
// Get the first slide in the target presentation.
SlidePart slide2 = GetFirstSlide(targetDoc);
// Get the first TextBody shape in it.
TextBody textBody2 = slide2.Slide.Descendants().First();
// Clone the source paragraph and insert the cloned. paragraph into the target TextBody shape.
// Passing "true" creates a deep clone, which creates a copy of the
// Paragraph object and everything directly or indirectly referenced by that object.
textBody2.Append(p1.CloneNode(true));
// Remove the source paragraph from the source file.
textBody1.RemoveChild(p1);
// Replace the removed paragraph with a placeholder.
textBody1.AppendChild(new Drawing.Paragraph());
// Save the slide in the source file.
slide1.Slide.Save();
// Save the slide in the target file.
slide2.Slide.Save();
}
}
}
// Get the slide part of the first slide in the presentation document.
public static SlidePart GetFirstSlide(PresentationDocument presentationDocument)
{
// Get relationship ID of the first slide
PresentationPart part = presentationDocument.PresentationPart;
SlideId slideId = part.Presentation.SlideIdList.GetFirstChild();
string relId = slideId.RelationshipId;
// Get the slide part by the relationship ID.
SlidePart slidePart = (SlidePart)part.GetPartById(relId);
return slidePart;
}
}
Published in
OpenXML
class Program
{
static void Main(string[] args)
{
InsertNewSlide(@"..\..\Documents\Myppt2.pptx", 1, "My new slide");
}
// Insert a slide into the specified presentation.
public static void InsertNewSlide(string presentationFile, int position, string slideTitle)
{
// Open the source document as read/write.
using (PresentationDocument presentationDocument = PresentationDocument.Open(presentationFile, true))
{
// Pass the source document and the position and title of the slide to be inserted to the next method.
InsertNewSlide(presentationDocument, position, slideTitle);
}
}
// Insert the specified slide into the presentation at the specified position.
public static void InsertNewSlide(PresentationDocument presentationDocument, int position, string slideTitle)
{
if (presentationDocument == null)
{
throw new ArgumentNullException("presentationDocument");
}
if (slideTitle == null)
{
throw new ArgumentNullException("slideTitle");
}
PresentationPart presentationPart = presentationDocument.PresentationPart;
// Verify that the presentation is not empty.
if (presentationPart == null)
{
throw new InvalidOperationException("The presentation document is empty.");
}
// Declare and instantiate a new slide.
Slide slide = new Slide(new CommonSlideData(new ShapeTree()));
uint drawingObjectId = 1;
// Construct the slide content.
// Specify the non-visual properties of the new slide.
NonVisualGroupShapeProperties nonVisualProperties = slide.CommonSlideData.ShapeTree.AppendChild(new NonVisualGroupShapeProperties());
nonVisualProperties.NonVisualDrawingProperties = new NonVisualDrawingProperties() { Id = 1, Name = "" };
nonVisualProperties.NonVisualGroupShapeDrawingProperties = new NonVisualGroupShapeDrawingProperties();
nonVisualProperties.ApplicationNonVisualDrawingProperties = new ApplicationNonVisualDrawingProperties();
// Specify the group shape properties of the new slide.
slide.CommonSlideData.ShapeTree.AppendChild(new GroupShapeProperties());
// Declare and instantiate the title shape of the new slide.
Shape titleShape = slide.CommonSlideData.ShapeTree.AppendChild(new Shape());
drawingObjectId++;
// Specify the required shape properties for the title shape.
titleShape.NonVisualShapeProperties = new NonVisualShapeProperties
(new NonVisualDrawingProperties() { Id = drawingObjectId, Name = "Title" },
new NonVisualShapeDrawingProperties(new Drawing.ShapeLocks() { NoGrouping = true }),
new ApplicationNonVisualDrawingProperties(new PlaceholderShape() { Type = PlaceholderValues.Title }));
titleShape.ShapeProperties = new ShapeProperties();
// Specify the text of the title shape.
titleShape.TextBody = new TextBody(new Drawing.BodyProperties(),
new Drawing.ListStyle(),
new Drawing.Paragraph(new Drawing.Run(new Drawing.Text() { Text = slideTitle })));
// Declare and instantiate the body shape of the new slide.
Shape bodyShape = slide.CommonSlideData.ShapeTree.AppendChild(new Shape());
drawingObjectId++;
// Specify the required shape properties for the body shape.
bodyShape.NonVisualShapeProperties = new NonVisualShapeProperties(new NonVisualDrawingProperties() { Id = drawingObjectId, Name = "Content Placeholder" },
new NonVisualShapeDrawingProperties(new Drawing.ShapeLocks() { NoGrouping = true }),
new ApplicationNonVisualDrawingProperties(new PlaceholderShape() { Index = 1 }));
bodyShape.ShapeProperties = new ShapeProperties();
// Specify the text of the body shape.
bodyShape.TextBody = new TextBody(new Drawing.BodyProperties(),
new Drawing.ListStyle(),
new Drawing.Paragraph());
// Create the slide part for the new slide.
SlidePart slidePart = presentationPart.AddNewPart();
// Save the new slide part.
slide.Save(slidePart);
// Modify the slide ID list in the presentation part.
// The slide ID list should not be null.
SlideIdList slideIdList = presentationPart.Presentation.SlideIdList;
// Find the highest slide ID in the current list.
uint maxSlideId = 1;
SlideId prevSlideId = null;
foreach (SlideId slideId in slideIdList.ChildElements)
{
if (slideId.Id > maxSlideId)
{
maxSlideId = slideId.Id;
}
position--;
if (position == 0)
{
prevSlideId = slideId;
}
}
maxSlideId++;
// Get the ID of the previous slide.
SlidePart lastSlidePart;
if (prevSlideId != null)
{
lastSlidePart = (SlidePart)presentationPart.GetPartById(prevSlideId.RelationshipId);
}
else
{
lastSlidePart = (SlidePart)presentationPart.GetPartById(((SlideId)(slideIdList.ChildElements[0])).RelationshipId);
}
// Use the same slide layout as that of the previous slide.
if (null != lastSlidePart.SlideLayoutPart)
{
slidePart.AddPart(lastSlidePart.SlideLayoutPart);
}
// Insert the new slide into the slide list after the previous slide.
SlideId newSlideId = slideIdList.InsertAfter(new SlideId(), prevSlideId);
newSlideId.Id = maxSlideId;
newSlideId.RelationshipId = presentationPart.GetIdOfPart(slidePart);
// Save the modified presentation.
presentationPart.Presentation.Save();
}
}
Published in
OpenXML
