How to: Insert a New Slide into a Presentation

Applies to: Excel 2010 | Office 2010 | PowerPoint 2010 | Word 2010

In this article
Getting a PresentationDocument Object
Basic Presentation Document Structure
How the Sample Code Works
Sample Code

This topic shows how to use the classes in the Open XML SDK 2.0 for Microsoft Office to insert a new slide into a presentation programmatically.

The following assembly directives are required to compile the code in this topic.

using System;
using DocumentFormat.OpenXml.Presentation;
using DocumentFormat.OpenXml.Packaging;
using Drawing = DocumentFormat.OpenXml.Drawing;

Imports System
Imports DocumentFormat.OpenXml.Presentation
Imports DocumentFormat.OpenXml.Packaging
Imports Drawing = DocumentFormat.OpenXml.Drawing

Getting a PresentationDocument Object

In the Open XML SDK, the PresentationDocument class represents a presentation document package. To work with a presentation document, first create an instance of the PresentationDocument class, and then work with that instance. To create the class instance from the document call the Open(String, Boolean) method that uses a file path, and a Boolean value as the second parameter to specify whether a document is editable. To open a document for read/write, specify the value true for this parameter as shown in the following using statement. In this code segment, the presentationFile parameter is a string that represents the full path for the file from which you want to open the document.

using (PresentationDocument presentationDocument = PresentationDocument.Open(presentationFile, true))
{
    // Insert other code here.
}

Using presentationDocument As PresentationDocument = PresentationDocument.Open(presentationFile, True)
    ' Insert other code here.
End Using

The using statement provides a recommended alternative to the typical .Open, .Save, .Close sequence. It ensures that the Dispose method (internal method used by the Open XML SDK to clean up resources) is automatically called when the closing brace is reached. The block that follows the using statement establishes a scope for the object that is created or named in the using statement, in this case presentationDocument.

Basic Presentation Document Structure

The basic document structure of a PresentationML document consists of the main part that contains the presentation definition. The following text from the ISO/IEC 29500 specification introduces the overall form of a PresentationML package.

A PresentationML package’s main part starts with a presentation root element. That element contains a presentation, which, in turn, refers to a slide list, a slide master list, a notes master list, and a handout master list. The slide list refers to all of the slides in the presentation; the slide master list refers to the entire slide masters used in the presentation; the notes master contains information about the formatting of notes pages; and the handout master describes how a handout looks.A handout is a printed set of slides that can be provided to an audience for future reference.As well as text and graphics, each slide can contain comments and notes, can have a layout, and can be part of one or more custom presentations. (A comment is an annotation intended for the person maintaining the presentation slide deck. A note is a reminder or piece of text intended for the presenter or the audience.)Other features that a PresentationML document can include the following: animation, audio, video, and transitions between slides.A PresentationML document is not stored as one large body in a single part. Instead, the elements that implement certain groupings of functionality are stored in separate parts. For example, all comments in a document are stored in one comment part while each slide has its own part.© ISO/IEC29500: 2008.

The following XML code segment represents a presentation that contains two slides denoted by the Id’s 267 and 256.

<p:presentation xmlns:p="…" … > 
   <p:sldMasterIdLst>
      <p:sldMasterId
         xmlns:rel="http://…/relationships" rel:id="rId1"/>
   </p:sldMasterIdLst>
   <p:notesMasterIdLst>
      <p:notesMasterId
         xmlns:rel="http://…/relationships" rel:id="rId4"/>
   </p:notesMasterIdLst>
   <p:handoutMasterIdLst>
      <p:handoutMasterId
         xmlns:rel="http://…/relationships" rel:id="rId5"/>
   </p:handoutMasterIdLst>
   <p:sldIdLst>
      <p:sldId id="267"
         xmlns:rel="http://…/relationships" rel:id="rId2"/>
      <p:sldId id="256"
         xmlns:rel="http://…/relationships" rel:id="rId3"/>
   </p:sldIdLst>
       <p:sldSz cx="9144000" cy="6858000"/>
   <p:notesSz cx="6858000" cy="9144000"/>
</p:presentation>

Using the Open XML SDK 2.0, you can create document structure and content using strongly-typed classes that correspond to PresentationML elements. You can find these classes in the DocumentFormat.OpenXml.Presentation namespace. The following table lists the class names of the classes that correspond to the sld, sldLayout, sldMaster, and notesMaster elements:

PresentationML Element	Open XML SDK 2.0 Class	Description
sld	Slide	Presentation Slide. It is the root element of SlidePart.
sldLayout	SlideLayout	Slide Layout. It is the root element of SlideLayoutPart.
sldMaster	SlideMaster	Slide Master. It is the root element of SlideMasterPart.
notesMaster	NotesMaster	Notes Master (or handoutMaster). It is the root element of NotesMasterPart.

How the Sample Code Works

The sample code consists of two overloads of the InsertNewSlide method. The first overloaded method takes three parameters: the full path to the presentation file to which to add a slide, an integer that represents the zero-based slide index position in the presentation where to add the slide, and the string that represents the title of the new slide. It opens the presentation file as read/write, gets a PresentationDocument object, and then passes that object to the second overloaded InsertNewSlide method, which performs the insertion.

// 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 a slide into the specified presentation.
Public Shared Sub InsertNewSlide(ByVal presentationFile As String, ByVal position As Integer, ByVal slideTitle As String)
    ' Open the source document as read/write. 
    Using presentationDocument As 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)
    End Using
End Sub

The second overloaded InsertNewSlide method creates a new Slide object, sets its properties, and then inserts it into the slide order in the presentation. The first section of the method creates the slide and sets its properties.

// 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());

' Insert the specified slide into the presentation at the specified position.
Public Shared Sub InsertNewSlide(ByVal presentationDocument As PresentationDocument, ByVal position As Integer, ByVal slideTitle As String)
    If presentationDocument Is Nothing Then
        Throw New ArgumentNullException("presentationDocument")
    End If

    If slideTitle Is Nothing Then
        Throw New ArgumentNullException("slideTitle")
    End If

    Dim presentationPart As PresentationPart = presentationDocument.PresentationPart

    ' Verify that the presentation is not empty.
    If presentationPart Is Nothing Then
        Throw New InvalidOperationException("The presentation document is empty.")
    End If

    ' Declare and instantiate a new slide.
    Dim slide As New Slide(New CommonSlideData(New ShapeTree()))
    Dim drawingObjectId As UInteger = 1

    ' Construct the slide content.            
    ' Specify the non-visual properties of the new slide.
    Dim nonVisualProperties As NonVisualGroupShapeProperties = slide.CommonSlideData.ShapeTree.AppendChild(New NonVisualGroupShapeProperties())
    nonVisualProperties.NonVisualDrawingProperties = New NonVisualDrawingProperties() With {.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())

The next section of the second overloaded InsertNewSlide method adds a title shape to the slide and sets its properties, including its text

// 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 title shape of the new slide.
Dim titleShape As DocumentFormat.OpenXml.Presentation.Shape = slide.CommonSlideData.ShapeTree.AppendChild _
    (New DocumentFormat.OpenXml.Presentation.Shape())
drawingObjectId = (drawingObjectId + 1)

' Specify the required shape properties for the title shape. 
titleShape.NonVisualShapeProperties = New DocumentFormat.OpenXml.Presentation.NonVisualShapeProperties(New  _
    DocumentFormat.OpenXml.Presentation.NonVisualDrawingProperties() With {.Id = drawingObjectId, .Name = "Title"}, _
    New DocumentFormat.OpenXml.Presentation.NonVisualShapeDrawingProperties _
    (New Drawing.ShapeLocks() With {.NoGrouping = True}), _
    New ApplicationNonVisualDrawingProperties(New PlaceholderShape() With {.Type = PlaceholderValues.Title}))

titleShape.ShapeProperties = New DocumentFormat.OpenXml.Presentation.ShapeProperties()

' Specify the text of the title shape.
titleShape.TextBody = New DocumentFormat.OpenXml.Presentation.TextBody(New Drawing.BodyProperties, _
     New Drawing.ListStyle, New Drawing.Paragraph _
     (New Drawing.Run(New Drawing.Text() With {.Text = slideTitle})))

The next section of the second overloaded InsertNewSlide method adds a body shape to the slide and sets its properties, including its text.

// 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());

' Declare and instantiate the body shape of the new slide.
Dim bodyShape As Shape = slide.CommonSlideData.ShapeTree.AppendChild(New Shape())
    drawingObjectId += 1

    ' Specify the required shape properties for the body shape.
    bodyShape.NonVisualShapeProperties = New NonVisualShapeProperties(New NonVisualDrawingProperties() With {.Id = drawingObjectId, .Name = "Content Placeholder"}, New NonVisualShapeDrawingProperties(New Drawing.ShapeLocks() With {.NoGrouping = True}), New ApplicationNonVisualDrawingProperties(New PlaceholderShape() With {.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())

The final section of the second overloaded InsertNewSlide method creates a new slide part, finds the specified index position where to insert the slide, and then inserts it and saves the modified presentation.

// 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();
}

' Create the slide part for the new slide.
Dim slidePart As SlidePart = presentationPart.AddNewPart(Of 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.
    Dim slideIdList As SlideIdList = presentationPart.Presentation.SlideIdList

    ' Find the highest slide ID in the current list.
    Dim maxSlideId As UInteger = 1
    Dim prevSlideId As SlideId = Nothing

    For Each slideId As SlideId In slideIdList.ChildElements
        If slideId.Id > maxSlideId Then
            maxSlideId = slideId.Id
        End If

        position -= 1
        If position = 0 Then
            prevSlideId = slideId
        End If

    Next slideId

    maxSlideId += 1

    ' Get the ID of the previous slide.
    Dim lastSlidePart As SlidePart

    If prevSlideId IsNot Nothing Then
        lastSlidePart = CType(presentationPart.GetPartById(prevSlideId.RelationshipId), SlidePart)
    Else
        lastSlidePart = CType(presentationPart.GetPartById((CType(slideIdList.ChildElements(0), SlideId)).RelationshipId), SlidePart)
    End If

    ' Use the same slide layout as that of the previous slide.
    If Nothing IsNot lastSlidePart.SlideLayoutPart Then
        slidePart.AddPart(lastSlidePart.SlideLayoutPart)
    End If

    ' Insert the new slide into the slide list after the previous slide.
    Dim newSlideId As SlideId = slideIdList.InsertAfter(New SlideId(), prevSlideId)
    newSlideId.Id = maxSlideId
    newSlideId.RelationshipId = presentationPart.GetIdOfPart(slidePart)

    ' Save the modified presentation.
    presentationPart.Presentation.Save()
End Sub

Sample Code

By using the sample code you can add a new slide to an existing presentation. In your program, you can use the following call to the InsertNewSlide method to add a new slide to a presentation file named "Myppt10.pptx," with the title "My new slide," at position 1.

InsertNewSlide(@"C:\Users\Public\Documents\Myppt10.pptx", 1, "My new slide");

InsertNewSlide("C:\Users\Public\Documents\Myppt10.pptx", 1, "My new slide")

After you have run the program, the new slide would show up as the second slide in the presentation.

The following is the complete sample code in both C# and Visual Basic.

// 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<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 a slide into the specified presentation.
Public Sub InsertNewSlide(ByVal presentationFile As String, ByVal position As Integer, ByVal slideTitle As String)

    ' Open the source document as read/write. 
    Dim presentationDocument As PresentationDocument = presentationDocument.Open(presentationFile, True)

    Using (presentationDocument)

        'Pass the source document and the position and title of the slide to be inserted to the next method.
        InsertNewSlide(presentationDocument, position, slideTitle)

    End Using

End Sub
' Insert a slide into the specified presentation.
Public Sub InsertNewSlide(ByVal presentationDocument As PresentationDocument, ByVal position As Integer, ByVal slideTitle As String)
    If (presentationDocument Is Nothing) Then
        Throw New ArgumentNullException("presentationDocument")
    End If
    If (slideTitle Is Nothing) Then
        Throw New ArgumentNullException("slideTitle")
    End If

    Dim presentationPart As PresentationPart = presentationDocument.PresentationPart

    ' Verify that the presentation is not empty.
    If (presentationPart Is Nothing) Then
        Throw New InvalidOperationException("The presentation document is empty.")
    End If

    ' Declare and instantiate a new slide.
    Dim slide As Slide = New Slide(New CommonSlideData(New ShapeTree))
    Dim drawingObjectId As UInteger = 1

    ' Construct the slide content.
    ' Specify the non-visual properties of the new slide.
    Dim nonVisualProperties As DocumentFormat.OpenXml.Presentation.NonVisualGroupShapeProperties = slide.CommonSlideData.ShapeTree.AppendChild(New  _
        DocumentFormat.OpenXml.Presentation.NonVisualGroupShapeProperties())
    nonVisualProperties.NonVisualDrawingProperties = New DocumentFormat.OpenXml.Presentation.NonVisualDrawingProperties() With {.Id = 1, .Name = ""}
    nonVisualProperties.NonVisualGroupShapeDrawingProperties = New DocumentFormat.OpenXml.Presentation.NonVisualGroupShapeDrawingProperties()
    nonVisualProperties.ApplicationNonVisualDrawingProperties = New ApplicationNonVisualDrawingProperties()

    ' Specify the group shape properties of the new slide.
    slide.CommonSlideData.ShapeTree.AppendChild(New DocumentFormat.OpenXml.Presentation.GroupShapeProperties())
    ' Declare and instantiate the title shape of the new slide.
    Dim titleShape As DocumentFormat.OpenXml.Presentation.Shape = slide.CommonSlideData.ShapeTree.AppendChild _
        (New DocumentFormat.OpenXml.Presentation.Shape())
    drawingObjectId = (drawingObjectId + 1)

    ' Specify the required shape properties for the title shape. 
    titleShape.NonVisualShapeProperties = New DocumentFormat.OpenXml.Presentation.NonVisualShapeProperties(New  _
        DocumentFormat.OpenXml.Presentation.NonVisualDrawingProperties() With {.Id = drawingObjectId, .Name = "Title"}, _
        New DocumentFormat.OpenXml.Presentation.NonVisualShapeDrawingProperties _
        (New Drawing.ShapeLocks() With {.NoGrouping = True}), _
        New ApplicationNonVisualDrawingProperties(New PlaceholderShape() With {.Type = PlaceholderValues.Title}))

    titleShape.ShapeProperties = New DocumentFormat.OpenXml.Presentation.ShapeProperties()

    ' Specify the text of the title shape.
    titleShape.TextBody = New DocumentFormat.OpenXml.Presentation.TextBody(New Drawing.BodyProperties, _
         New Drawing.ListStyle, New Drawing.Paragraph _
         (New Drawing.Run(New Drawing.Text() With {.Text = slideTitle})))
    ' Declare and instantiate the body shape of the new slide.
    Dim bodyShape As DocumentFormat.OpenXml.Presentation.Shape = slide.CommonSlideData.ShapeTree.AppendChild _
        (New DocumentFormat.OpenXml.Presentation.Shape())
    drawingObjectId = (drawingObjectId + 1)

    ' Specify the required shape properties for the body shape.
    bodyShape.NonVisualShapeProperties = New NonVisualShapeProperties(New NonVisualDrawingProperties() With {.Id = drawingObjectId, .Name = "ContentPlaceholder"}, _
         New NonVisualShapeDrawingProperties(New Drawing.ShapeLocks() With {.NoGrouping = True}), _
         New ApplicationNonVisualDrawingProperties(New PlaceholderShape() With {.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.
    Dim slidePart As SlidePart = presentationPart.AddNewPart(Of 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.
    Dim slideIdList As SlideIdList = presentationPart.Presentation.SlideIdList

    ' Find the highest slide ID in the current list.
    Dim maxSlideId As UInteger = 1
    Dim prevSlideId As SlideId = Nothing

    For Each slideId As SlideId In slideIdList.ChildElements
        If (CType(slideId.Id, UInteger) > maxSlideId) Then
            maxSlideId = slideId.Id
        End If
        position = (position - 1)
        If (position = 0) Then
            prevSlideId = slideId
        End If
    Next

    maxSlideId = (maxSlideId + 1)

    ' Get the ID of the previous slide.
    Dim lastSlidePart As SlidePart = Nothing

    If (Not prevSlideId Is Nothing) Then
        lastSlidePart = CType(presentationPart.GetPartById(prevSlideId.RelationshipId), SlidePart)
    Else
        lastSlidePart = CType(presentationPart.GetPartById(CType(slideIdList.ChildElements(0), SlideId).RelationshipId), SlidePart)
    End If


    ' Use the same slide layout as that of the previous slide.
    If (Not (lastSlidePart.SlideLayoutPart) Is Nothing) Then
        slidePart.AddPart(lastSlidePart.SlideLayoutPart)
    End If

    ' Insert the new slide into the slide list after the previous slide.
    Dim newSlideId As SlideId = slideIdList.InsertAfter(New SlideId, prevSlideId)
    newSlideId.Id = maxSlideId
    newSlideId.RelationshipId = presentationPart.GetIdOfPart(slidePart)

    ' Save the modified presentation.
    presentationPart.Presentation.Save()

End Sub

See Also

Reference

Class Library Reference