public static Slide GetDetailSlide(PresentationDocument _presentationDocument, int _slideIndex)
{
// Get the presentation part of the presentation document.
presentationPart = _presentationDocument.PresentationPart;
if (presentationPart != null && presentationPart.Presentation != null)
{
Presentation presentation = presentationPart.Presentation;
if (presentation.SlideIdList != null)
{
DocumentFormat.OpenXml.OpenXmlElementList slideIds = presentation.SlideIdList.ChildElements;
// If the slide ID is in range...
if (_slideIndex < slideIds.Count)
{
// Get the relationship ID of the slide.
string slidePartRelationshipId = (slideIds[_slideIndex] as SlideId).RelationshipId;
// Get the specified slide part from the relationship ID.
slidePart = (SlidePart)presentationPart.GetPartById(slidePartRelationshipId);
return(slidePart.Slide);
}
}
}
return(null);
}
private static string[] GetAllTextInSlide(PresentationDocument presentationDocument, int slideIndex)
{
// Verify that the presentation document exists.
if (presentationDocument == null)
{
throw new ArgumentNullException("presentationDocument");
}
// Verify that the slide index is not out of range.
if (slideIndex < 0)
{
throw new ArgumentOutOfRangeException("slideIndex");
}
// Get the presentation part of the presentation document.
PresentationPart presentationPart = presentationDocument.PresentationPart;
// Verify that the presentation part and presentation exist.
if (presentationPart != null && presentationPart.Presentation != null)
{
// Get the Presentation object from the presentation part.
Presentation presentation = presentationPart.Presentation;
// Verify that the slide ID list exists.
if (presentation.SlideIdList != null)
{
// Get the collection of slide IDs from the slide ID list.
DocumentFormat.OpenXml.OpenXmlElementList slideIds =
presentation.SlideIdList.ChildElements;
// If the slide ID is in range...
if (slideIndex < slideIds.Count)
{
// Get the relationship ID of the slide.
string slidePartRelationshipId = (slideIds[slideIndex] as SlideId).RelationshipId;
// Get the specified slide part from the relationship ID.
SlidePart slidePart =
(SlidePart)presentationPart.GetPartById(slidePartRelationshipId);
// Pass the slide part to the next method, and
// then return the array of strings that method
// returns to the previous method.
return(GetAllTextInSlide(slidePart));
}
}
}
// Else, return null.
return(null);
}
public static void GetThemePart(int _slideIndex)
{
if (presentationPart != null && presentationPart.Presentation != null)
{
Presentation presentation = presentationPart.Presentation;
if (presentation.SlideMasterIdList != null)
{
DocumentFormat.OpenXml.OpenXmlElementList slideIds = presentation.SlideMasterIdList.ChildElements;
// If the slide ID is in range...
if (_slideIndex < slideIds.Count)
{
// Get the relationship ID of the slide.
string slidePartRelationshipId = (slideIds[_slideIndex] as SlideMasterId).RelationshipId;
// Get the specified slide part from the relationship ID.
themePart = (SlideMasterPart)presentationPart.GetPartById(slidePartRelationshipId);
}
}
}
}