Mover un párrafo de una presentación a otra
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Presentación OpenXML
string FilePath = @"..\..\..\..\Sample Files\";
string FileName = FilePath + "Move a Paragraph from One Presentation to Another 1.pptx";
string DestFileName = FilePath + "Move a Paragraph from One Presentation to Another 2.pptx";
MoveParagraphToPresentation(FileName, DestFileName);
}
// 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<TextBody>().First();
// Get the first paragraph in the TextBody shape.
// Note: "Drawing" is the alias of namespace DocumentFormat.OpenXml.Drawing
Drawing.Paragraph p1 = textBody1.Elements<Drawing.Paragraph>().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<TextBody>().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<Drawing.Paragraph>(p1);
// Replace the removed paragraph with a placeholder.
textBody1.AppendChild<Drawing.Paragraph>(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<SlideId>();
string relId = slideId.RelationshipId;
// Get the slide part by the relationship ID.
SlidePart slidePart = (SlidePart)part.GetPartById(relId);
return slidePart;
}
Aspose.Slides
No es raro que los desarrolladores necesiten extraer el texto de una presentación. Para ello, es necesario extraer el texto de todas las formas en todas las diapositivas de una presentación. Este artículo explica cómo extraer texto de presentaciones Microsoft PowerPoint PPTX utilizando Aspose.Slides. Tanto si se extrae texto de una sola diapositiva como de una presentación completa, Aspose.Slides utiliza la clase PresentationScanner y los métodos estáticos que expone. Todos están agrupados bajo el espacio de nombres Aspose.Slides.Util.
string FilePath = @"..\..\..\..\Sample Files\";
string FileName = FilePath + "Move a Paragraph from One Presentation to Another 1.pptx";
string DestFileName = FilePath + "Move a Paragraph from One Presentation to Another 2.pptx";
MoveParagraphToPresentation(FileName, DestFileName);
// 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)
{
string Text = "";
//Instantiate Presentation class that represents PPTX//Instantiate Presentation class that represents PPTX
Presentation sourcePres = new Presentation(sourceFile);
//Access first shape in first slide
IShape shp = sourcePres.Slides[0].Shapes[0];
if (shp.Placeholder != null)
{
//Get text from placeholder
Text = ((IAutoShape)shp).TextFrame.Text;
((IAutoShape)shp).TextFrame.Text = "";
}
Presentation destPres = new Presentation(targetFile);
//Access first shape in first slide
IShape destshp = sourcePres.Slides[0].Shapes[0];
if (destshp.Placeholder != null)
{
//Get text from placeholder
((IAutoShape)destshp).TextFrame.Text += Text;
}
sourcePres.Save(sourceFile, Aspose.Slides.Export.SaveFormat.Pptx);
destPres.Save(targetFile, Aspose.Slides.Export.SaveFormat.Pptx);
}
}