public static PmlDocument SearchAndReplace(PmlDocument doc, string search, string replace, bool matchCase)
{
using (OpenXmlMemoryStreamDocument streamDoc = new OpenXmlMemoryStreamDocument(doc))
{
using (PresentationDocument document = streamDoc.GetPresentationDocument())
{
SearchAndReplace(document, search, replace, matchCase);
}
return(streamDoc.GetModifiedPmlDocument());
}
}
public static PmlDocument SearchAndReplace(PmlDocument doc, string search, string replace, bool matchCase)
{
using (OpenXmlMemoryStreamDocument streamDoc = new OpenXmlMemoryStreamDocument(doc))
{
using (PresentationDocument document = streamDoc.GetPresentationDocument())
{
SearchAndReplace(document, search, replace, matchCase);
}
return streamDoc.GetModifiedPmlDocument();
}
}
static void Main(string[] args)
{
string presentation = "../../Presentation1.pptx";
string hiddenPresentation = "../../HiddenPresentation.pptx";
// First, load both presentations into byte arrays, simulating retrieving presentations from some source
// such as a SharePoint server
var baPresentation = File.ReadAllBytes(presentation);
var baHiddenPresentation = File.ReadAllBytes(hiddenPresentation);
// Next, replace "thee" with "the" in the main presentation
var pmlMainPresentation = new PmlDocument("Main.pptx", baPresentation);
PmlDocument modifiedMainPresentation = null;
using (OpenXmlMemoryStreamDocument streamDoc = new OpenXmlMemoryStreamDocument(pmlMainPresentation))
{
using (PresentationDocument document = streamDoc.GetPresentationDocument())
{
var pXDoc = document.PresentationPart.GetXDocument();
foreach (var slideId in pXDoc.Root.Elements(P.sldIdLst).Elements(P.sldId))
{
var slideRelId = (string)slideId.Attribute(R.id);
var slidePart = document.PresentationPart.GetPartById(slideRelId);
var slideXDoc = slidePart.GetXDocument();
var paragraphs = slideXDoc.Descendants(A.p).ToList();
OpenXmlRegex.Replace(paragraphs, new Regex("thee"), "the", null);
slidePart.PutXDocument();
}
}
modifiedMainPresentation = streamDoc.GetModifiedPmlDocument();
}
// Combine the two presentations into a single presentation
var slideSources = new List<SlideSource>() {
new SlideSource(modifiedMainPresentation, 0, 1, true),
new SlideSource(new PmlDocument("Hidden.pptx", baHiddenPresentation), true),
new SlideSource(modifiedMainPresentation, 1, true),
};
PmlDocument combinedPresentation = PresentationBuilder.BuildPresentation(slideSources);
// Replace <# TRADEMARK #> with AdventureWorks (c)
PmlDocument modifiedCombinedPresentation = null;
using (OpenXmlMemoryStreamDocument streamDoc = new OpenXmlMemoryStreamDocument(combinedPresentation))
{
using (PresentationDocument document = streamDoc.GetPresentationDocument())
{
var pXDoc = document.PresentationPart.GetXDocument();
foreach (var slideId in pXDoc.Root.Elements(P.sldIdLst).Elements(P.sldId).Skip(1).Take(1))
{
var slideRelId = (string)slideId.Attribute(R.id);
var slidePart = document.PresentationPart.GetPartById(slideRelId);
var slideXDoc = slidePart.GetXDocument();
var paragraphs = slideXDoc.Descendants(A.p).ToList();
OpenXmlRegex.Replace(paragraphs, new Regex("<# TRADEMARK #>"), "AdventureWorks (c)", null);
slidePart.PutXDocument();
}
}
modifiedCombinedPresentation = streamDoc.GetModifiedPmlDocument();
}
// we now have a PmlDocument (which is essentially a byte array) that can be saved as necessary.
modifiedCombinedPresentation.SaveAs("Modified.pptx");
}
