private SlidePart CloneSlidePart(PresentationPart presentationPart, SlidePart slideTemplate)
{
SlidePart cloneSlidei = presentationPart.AddNewPart <SlidePart>("newSlide" + i);
i++;
cloneSlidei.FeedData(slideTemplate.GetStream(FileMode.Open));
cloneSlidei.AddPart(slideTemplate.SlideLayoutPart);
SlideIdList slideidlist = presentationPart.Presentation.SlideIdList;
uint maxide = 0;
SlideId beforeSlide = null;
foreach (SlideId slideidw in slideidlist.ChildElements)
{
if (slideidw.Id > maxide)
{
beforeSlide = slideidw;
maxide = slideidw.Id;
}
}
maxide++;
SlideId inside = slideidlist.InsertAfter(new SlideId(), beforeSlide);
inside.Id = maxide;
inside.RelationshipId = presentationPart.GetIdOfPart(cloneSlidei);
return(cloneSlidei);
}
/// <summary>
/// Inserts this slide after a given target slide.
/// </summary>
/// <param name="newSlide">The new slide to insert.</param>
/// <param name="prevSlide">The previous slide.</param>
/// <remarks>
/// This slide will be inserted after the slide specified as a parameter.
/// <see href="http://startbigthinksmall.wordpress.com/2011/05/17/cloning-a-slide-using-open-xml-sdk-2-0/">Cloning a Slide using Open Xml SDK 2.0</see>
/// </remarks>
public static void InsertAfter(PowerpointSlide newSlide, PowerpointSlide prevSlide)
{
// Find the presentationPart
var presentationPart = prevSlide.presentationPart;
SlideIdList slideIdList = presentationPart.Presentation.SlideIdList;
// Find the slide id where to insert our slide
SlideId prevSlideId = null;
foreach (SlideId slideId in slideIdList.ChildElements)
{
// See http://openxmldeveloper.org/discussions/development_tools/f/17/p/5302/158602.aspx
if (slideId.RelationshipId == presentationPart.GetIdOfPart(prevSlide.slidePart))
{
prevSlideId = slideId;
break;
}
}
// Find the highest id
uint maxSlideId = slideIdList.ChildElements.Cast <SlideId>().Max(x => x.Id.Value);
// public override T InsertAfter<T>(T newChild, DocumentFormat.OpenXml.OpenXmlElement refChild)
// Inserts the specified element immediately after the specified reference element.
SlideId newSlideId = slideIdList.InsertAfter(new SlideId(), prevSlideId);
newSlideId.Id = maxSlideId + 1;
newSlideId.RelationshipId = presentationPart.GetIdOfPart(newSlide.slidePart);
}
// 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();
}
private int ReorderSlides(string fileName, int currentSlidePosition, int newPosition)
{
int returnValue = -1;
if (newPosition == currentSlidePosition)
{
return(returnValue);
}
using (PresentationDocument doc = PresentationDocument.Open(fileName, true))
{
PresentationPart presentationPart = doc.PresentationPart;
if (presentationPart == null)
{
throw new ArgumentException("Presentation part not found.");
}
int slideCount = presentationPart.SlideParts.Count();
if (slideCount == 0)
{
return(returnValue);
}
int maxPosition = slideCount - 1;
CalculatePositions(ref currentSlidePosition, ref newPosition, maxPosition);
if (newPosition != currentSlidePosition)
{
DocumentFormat.OpenXml.Presentation.Presentation presentation = presentationPart.Presentation;
SlideIdList slideIdList = presentation.SlideIdList;
SlideId sourceSlide = (SlideId)(slideIdList.ChildElements[currentSlidePosition]);
SlideId targetSlide = (SlideId)(slideIdList.ChildElements[newPosition]);
sourceSlide.Remove();
if (newPosition > currentSlidePosition)
{
slideIdList.InsertAfter(sourceSlide, targetSlide);
}
else
{
slideIdList.InsertBefore(sourceSlide, targetSlide);
}
returnValue = newPosition;
presentation.Save();
}
}
return(returnValue);
}
public SlidePart CloneInputSlide()
{
if (Presentation == null)
{
throw new ArgumentNullException("presentationDocument");
}
PresentationPart presentationPart = Presentation.PresentationPart;
SlideId slideId = presentationPart.Presentation.SlideIdList.GetFirstChild <SlideId>();
string relId = slideId.RelationshipId;
// Get the slide part by the relationship ID.
SlidePart inputSlide = (SlidePart)presentationPart.GetPartById(relId);
if (inputSlide == default(SlidePart))
{
throw new ArgumentException("SlidePart");
}
//Create a new slide part in the presentation.
SlidePart newSlidePart = presentationPart.AddNewPart <SlidePart>("OutPutSlideResult-" + SlideRef);
SlideRef++;
//Add the slide template content into the new slide.
newSlidePart.FeedData(inputSlide.GetStream(FileMode.Open));
//Make sure the new slide references the proper slide layout.
newSlidePart.AddPart(inputSlide.SlideLayoutPart);
//Get the list of slide ids.
SlideIdList slideIdList = presentationPart.Presentation.SlideIdList;
//Deternmine where to add the next slide (find max number of slides).
uint maxSlideId = 1;
SlideId prevSlideId = null;
foreach (SlideId slideID in slideIdList.ChildElements)
{
if (slideID.Id > maxSlideId)
{
maxSlideId = slideID.Id;
prevSlideId = slideID;
}
}
maxSlideId++;
//Add the new slide at the end of the deck.
SlideId newSlideId = slideIdList.InsertAfter(new SlideId(), prevSlideId);
//Make sure the id and relid are set appropriately.
newSlideId.Id = maxSlideId;
newSlideId.RelationshipId = presentationPart.GetIdOfPart(newSlidePart);
return(newSlidePart);
}
public bool CloneSlidePart(int i)
{
using (PresentationDocument ppt = PresentationDocument.Open(HttpContext.Current.Server.MapPath(folder), true))
{
PresentationPart presentationPart = ppt.PresentationPart;
OpenXmlElementList slideIds = presentationPart.Presentation.SlideIdList.ChildElements;
string relId = (slideIds[0] as SlideId).RelationshipId;
//
uint max = (slideIds[0] as SlideId).Id;
uint k = 0;
for (int j = 0; j < i; j++)
{
k = (slideIds[j] as SlideId).Id;
if (k > max)
{
max = k;
}
}
SlidePart slideTemplate = (SlidePart)presentationPart.GetPartById(relId);
SlidePart newSlidePart = presentationPart.AddNewPart <SlidePart>("newSlide" + max);
newSlidePart.FeedData(slideTemplate.GetStream(FileMode.Open));
newSlidePart.AddPart(slideTemplate.SlideLayoutPart);
SlideIdList slideIdList = presentationPart.Presentation.SlideIdList;
uint maxSlideId = 1;
SlideId prevSlideId = null;
foreach (SlideId slideId in slideIdList.ChildElements)
{
if (slideId.Id > maxSlideId)
{
maxSlideId = slideId.Id;
prevSlideId = slideId;
}
}
maxSlideId++;
SlideId newSlideId = slideIdList.InsertAfter(new SlideId(), prevSlideId);
newSlideId.Id = maxSlideId;
newSlideId.RelationshipId = presentationPart.GetIdOfPart(newSlidePart);
if (newSlidePart != null)
{
return(true);
}
else
{
return(false);
}
}
}
/// <summary>
/// Move a slide to a different position in the slide order in the presentation.
/// </summary>
/// <param name="presentationDocument"></param>
/// <param name="from">slide index # of the source slide</param>
/// <param name="to">slide index # of the target slide</param>
public static void MoveSlide(PresentationDocument presentationDocument, int from, int to)
{
if (presentationDocument == null)
{
throw new ArgumentNullException(StringResources.pptexceptionPowerPoint);
}
// 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 = slideIdList.ChildElements[to] as SlideId;
// Remove the source slide from its current position.
sourceSlide.Remove();
// Insert the source slide at its new position after the target slide.
// if the slide being moved is before the target position, use InsertAfter
// otherwise, we want to use InsertBefore
if (from < to)
{
slideIdList.InsertAfter(sourceSlide, targetSlide);
}
else
{
slideIdList.InsertBefore(sourceSlide, targetSlide);
}
// Save the modified presentation.
presentation.Save();
}
public static Slide 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());
// Create the slide part for the new slide.
SlidePart slidePart = presentationPart.AddNewPart <SlidePart>();
// 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);
string str = new StreamReader(slidePart.GetStream()).ReadToEnd();
return(slidePart.Slide);
// Save the modified presentation.
//presentationPart.Presentation.Save();
}
// 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 <SlidePart>();
// 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();
}
// Insert the specified slide into the presentation at the specified position.
public static Slide InsertNewSlide(PresentationDocument presentationDocument, int position, string slideTitle, FileInfo ChartFile)
{
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.
//DocumentFormat.OpenXml.Presentation.Shape titleShape = slide.CommonSlideData.ShapeTree.AppendChild(new DocumentFormat.OpenXml.Presentation.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 DocumentFormat.OpenXml.Presentation.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.
//DocumentFormat.OpenXml.Presentation.Shape bodyShape = slide.CommonSlideData.ShapeTree.AppendChild(new DocumentFormat.OpenXml.Presentation.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 DocumentFormat.OpenXml.Presentation.ShapeProperties();
//// Specify the text of the body shape.
//bodyShape.TextBody = new TextBody(new Drawing.BodyProperties(),
// new Drawing.ListStyle(),
// new Drawing.Paragraph());
// Declare and instantiate the body shape of the new slide.
//DocumentFormat.OpenXml.Presentation.Shape ImgShape = slide.CommonSlideData.ShapeTree.AppendChild(new DocumentFormat.OpenXml.Presentation.Shape());
//drawingObjectId++;
// Specify the required shape properties for the body shape.
//ImgShape.NonVisualShapeProperties = new NonVisualShapeProperties(new NonVisualDrawingProperties() { Id = drawingObjectId, Name = "" },
// new NonVisualGroupShapeDrawingProperties(),
// new ApplicationNonVisualDrawingProperties());
//ImgShape.ShapeProperties = new DocumentFormat.OpenXml.Presentation.ShapeProperties();
// Specify the text of the body shape.
//ImgShape.TextBody = new TextBody(new Drawing.BodyProperties(),
// new Drawing.ListStyle(),
// new Drawing.Paragraph());
//Drawing.Picture picture = new Drawing.Picture();
////string embedId = string.Empty;
//string embedId = "rId" + (slide.Elements().Count() + 915).ToString();
//Drawing.NonVisualPictureProperties nonVisualPictureProperties = new Drawing.NonVisualPictureProperties(
// new Drawing.NonVisualDrawingProperties() { Id = (UInt32Value)4U, Name = "Picture" + ChartFile.Name },
// new Drawing.NonVisualPictureDrawingProperties(new Drawing.PictureLocks() { NoChangeAspect = true }),
// new ApplicationNonVisualDrawingProperties());
//BlipFill blipFill1 = new BlipFill();
//Drawing.Blip blip1 = new Drawing.Blip() { Embed = embedId, CompressionState = Drawing.BlipCompressionValues.Print };
//// Creates an BlipExtensionList instance and adds its children
//Drawing.BlipExtensionList blipExtensionList = new Drawing.BlipExtensionList();
//Drawing.BlipExtension blipExtension = new Drawing.BlipExtension() { Uri = "{28A0092B-C50C-407E-A947-70E740481C1C}" };
//A14.UseLocalDpi useLocalDpi = new A14.UseLocalDpi() { Val = false };
//useLocalDpi.AddNamespaceDeclaration("a14",
// "http://schemas.microsoft.com/office/drawing/2010/main");
//blipExtension.Append(useLocalDpi);
//blipExtensionList.Append(blipExtension);
//blip1.Append(blipExtensionList);
//Drawing.Stretch stretch1 = new Drawing.Stretch();
//Drawing.FillRectangle fillRectangle1 = new Drawing.FillRectangle();
//stretch1.Append(fillRectangle1);
//blipFill1.Append(blip1);
//blipFill1.Append(stretch1);
//Drawing.ShapeProperties shapeProperties = new Drawing.ShapeProperties();
//Drawing.Transform2D transform2D = new Drawing.Transform2D();
//Drawing.Offset offset = new Drawing.Offset() { X = 0L, Y = 0L };
//Drawing.Extents extents = new Drawing.Extents() { Cx = 8000000L, Cy = 6000000L };
//transform2D.Append(offset);
//transform2D.Append(extents);
//Drawing.PresetGeometry presetGeometry = new Drawing.PresetGeometry() { Preset = Drawing.ShapeTypeValues.Rectangle };
//Drawing.AdjustValueList adjustValueList = new Drawing.AdjustValueList();
//presetGeometry.Append(adjustValueList);
//shapeProperties.Append(transform2D);
//shapeProperties.Append(presetGeometry);
//picture.Append(nonVisualPictureProperties);
//picture.Append(blipFill1);
//picture.Append(shapeProperties);
//slide.CommonSlideData.ShapeTree.AppendChild(picture);
// Create the slide part for the new slide.
SlidePart slidePart = presentationPart.AddNewPart <SlidePart>();
// 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();
return(GetSlideByRelationShipId(presentationPart, newSlideId.RelationshipId));
}
// Insert the specified slide into the presentation at the specified position.
public void InsertNewSlide(PresentationPart 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 P.ShapeTree()));
// Specify the group shape properties of the new slide.
slide.CommonSlideData.ShapeTree.AppendChild(new P.GroupShapeProperties());
// Create the slide part for the new slide.
SlidePart slidePart = presentationPart.AddNewPart <SlidePart>();
// 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 = Convert.ToUInt32(slideIdList.ChildElements.Count());
int position = slideIdList.ChildElements.Count();
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();
}
public static int PPTReorderSlides(string fileName, int originalPosition, int newPosition)
{
// Assume that no slide moves; return -1.
int returnValue = -1;
// Moving to and from same position? Get out now.
if (newPosition == originalPosition)
{
return(returnValue);
}
using (PresentationDocument doc = PresentationDocument.Open(fileName, true))
{
// Get the presentation part of the document.
PresentationPart presentationPart = doc.PresentationPart;
// No presentation part? Something's wrong with the document.
if (presentationPart == null)
{
throw new ArgumentException("fileName");
}
// If you're here, you know that presentationPart exists.
int slideCount = presentationPart.SlideParts.Count();
// No slides? Just return -1 indicating that nothing happened.
if (slideCount == 0)
{
return(returnValue);
}
// There are slides. Calculate real positions.
int maxPosition = slideCount - 1;
// Adjust the positions, if necessary.
CalcPositions(ref originalPosition, ref newPosition, maxPosition);
// The two positions could have ended up being the same
// thing. There's nothing to do, in that case. Otherwise,
// do the work.
if (newPosition != originalPosition)
{
Presentation presentation = presentationPart.Presentation;
SlideIdList slideIdList = presentation.SlideIdList;
// Get the slide ID of the source and target slides.
SlideId sourceSlide =
(SlideId)(slideIdList.ChildElements[originalPosition]);
SlideId targetSlide =
(SlideId)(slideIdList.ChildElements[newPosition]);
// Remove the source slide from its parent tree. You can't
// move a slide while it's part of an XML node tree.
sourceSlide.Remove();
if (newPosition > originalPosition)
{
slideIdList.InsertAfter(sourceSlide, targetSlide);
}
else
{
slideIdList.InsertBefore(sourceSlide, targetSlide);
}
// Set the return value.
returnValue = newPosition;
// Save the modified presentation.
presentation.Save();
}
}
return(returnValue);
}
public ISlide InsertSlide(ISlideLayout slideLayout, int index)
{
if (!(slideLayout is IOpenXmlSlideLayout internalSlideLayout))
{
throw new ArgumentException();
}
Slide slide = new Slide()
{
// CommonSlideData = slideLayoutRef.SlideLayoutPart.SlideLayout.CommonSlideData.CloneNode(true) as CommonSlideData
CommonSlideData = new CommonSlideData()
{
ShapeTree = new ShapeTree()
{
NonVisualGroupShapeProperties = internalSlideLayout.SlideLayoutPart.SlideLayout.CommonSlideData.ShapeTree.NonVisualGroupShapeProperties.CloneNode(true) as NonVisualGroupShapeProperties,
GroupShapeProperties = internalSlideLayout.SlideLayoutPart.SlideLayout.CommonSlideData.ShapeTree.GroupShapeProperties.CloneNode(true) as GroupShapeProperties
}
}
};
slide.CommonSlideData.ShapeTree.Append(
internalSlideLayout.SlideLayoutPart.SlideLayout.CommonSlideData.ShapeTree
.Select(element => OpenXmlVisualFactory.TryCreateVisual(internalSlideLayout, element, out IOpenXmlVisual visual) ? visual : null).Where(visual => visual != null)
.Where(visual => visual?.IsPlaceholder ?? false)
.Select(visual => visual.CloneForSlide())
);
SlidePart slidePart = this.presentationPart.AddNewPart <SlidePart>();
slide.Save(slidePart);
slidePart.CreateRelationshipToPartDefaultId(internalSlideLayout.SlideLayoutPart);
if (this.presentationPart.Presentation.SlideIdList == null)
{
this.presentationPart.Presentation.SlideIdList = new SlideIdList();
}
SlideIdList slideIdList = this.presentationPart.Presentation.SlideIdList;
SlideId refSlideId = slideIdList.Elements <SlideId>().Take(index).LastOrDefault();
uint id = refSlideId?.Id ?? 256;
SlideId slideId;
if (refSlideId != null)
{
slideId = slideIdList.InsertAfter(
new SlideId()
{
Id = ++id, RelationshipId = presentationPart.GetIdOfPart(slidePart)
},
refSlideId
);
}
else
{
slideId = slideIdList.PrependChild(
new SlideId()
{
Id = ++id, RelationshipId = presentationPart.GetIdOfPart(slidePart)
}
);
}
for (slideId = slideId.NextSibling <SlideId>(); slideId != null; slideId = slideId.NextSibling <SlideId>())
{
slideId.Id = ++id;
}
return(new OpenXmlSlide(this, slidePart));
}