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[英]Remove all unused Slide Layout from my Master Slide from Powerpoint Presentation using OpenXML SDK
[英]Copying a slide from one presentation to another using Open XML SDK
對不起我的英文:)
有一個代碼
using (var sourceDoc = PresentationDocument.Open(@"d:\source.pptx", false))
{
using (var destDoc = PresentationDocument.Open(@"d:\dest.pptx", true))
{
}
}
我嘗試從sourceDoc
復制幻燈片№2並粘貼到destDoc
位置4。
有些文章標題為“將幻燈片從一個演示文稿復制到另一個演示文稿”和“如何組裝多個PowerPoint演示文稿” ,但不幸的是我不能應用它。 我只是困惑。 例如:
uniqueId = GetMaxIdFromChild(destPresPart.Presentation.SlideMasterIdList);
這是什么意思? 編譯時間說錯誤。
我創建了將幻燈片復制到其他演示文稿的方法
/// <summary>
/// Copy one slide to another presentation
/// </summary>
/// <param name="sourcePresentationPath"></param>
/// <param name="slidePosition">
/// Slide number from source presentation which will be copy to destinition presentation
/// </param>
/// <param name="destPresentationPath"></param>
/// <remarks>Slide copy to end destinition presentation</remarks>
public static void CopySlideTo(string sourcePresentationPath, int slidePosition, string destPresentationPath)
{
using (PresentationDocument sourcePresentationDocument = PresentationDocument.Open(sourcePresentationPath, false))
{
var sourcePresentationPart = sourcePresentationDocument.PresentationPart;
var sourcePresentation = sourcePresentationPart.Presentation;
SlideIdList sourceSlideIdList = sourcePresentation.SlideIdList;
SlideId slideIdSelectedSlide = sourceSlideIdList.ChildElements[slidePosition - 1] as SlideId;
SlidePart sourceSlidePart = sourcePresentationPart.GetPartById(slideIdSelectedSlide.RelationshipId) as SlidePart;
SlidePart destSlidePart = null;
SlideIdList destSlideIdList = null;
PresentationPart destPresentationPart = null;
using (PresentationDocument destPresentationDocument = PresentationDocument.Open(destPresentationPath, true))
{
var addedSlidePart = destPresentationDocument.PresentationPart.AddPart(sourceSlidePart);
destSlideIdList = destPresentationDocument.PresentationPart.Presentation.SlideIdList;
destPresentationPart = destPresentationDocument.PresentationPart;
SlideId lastSlideIdInDestPresentation = destSlideIdList.ChildElements.Last() as SlideId;
// Insert the new slide into the slide list after last slide
SlideId addedSlideId = destSlideIdList.InsertAfter(new SlideId(), lastSlideIdInDestPresentation);
addedSlideId.Id = lastSlideIdInDestPresentation.Id++;
addedSlideId.RelationshipId = destPresentationPart.GetIdOfPart(addedSlidePart);
destPresentationPart.Presentation.Save();
}
}
幻燈片已復制,但沒有背景。 如何移動背景?
我終於創建了將幻燈片復制到另一個演示文稿的方法
public class Extensions
{
static uint uniqueId;
/// <summary>
/// Copy one slide to another presentation
/// </summary>
/// <param name="sourcePresentationPath"></param>
/// <param name="slidePosition">
/// Slide number from source presentation which will be copy to destinition presentation
/// </param>
/// <param name="destPresentationPath"></param>
/// <remarks>Slide is copied to end destinition presentation</remarks>
[SuppressMessage("ReSharper", "SuggestVarOrType_SimpleTypes")]
public static void CopySlideTo(string sourcePresentationPath, int slidePosition, string destPresentationPath)
{
using (PresentationDocument sourcePresentationDocument = PresentationDocument.Open(sourcePresentationPath, false))
{
var sourcePresentationPart = sourcePresentationDocument.PresentationPart;
var sourcePresentation = sourcePresentationPart.Presentation;
SlideIdList sourceSlideIdList = sourcePresentation.SlideIdList;
SlideId slideIdSelectedSlide = sourceSlideIdList.ChildElements[slidePosition - 1] as SlideId;
SlidePart sourceSlidePart = sourcePresentationPart.GetPartById(slideIdSelectedSlide.RelationshipId) as SlidePart;
using (PresentationDocument destPresentationDocument = PresentationDocument.Open(destPresentationPath, true))
{
var addedSlidePart = destPresentationDocument.PresentationPart.AddPart(sourceSlidePart);
var destSlideIdList = destPresentationDocument.PresentationPart.Presentation.SlideIdList;
var destPresentationPart = destPresentationDocument.PresentationPart;
SlideId lastSlideIdInDestPresentation = destSlideIdList.ChildElements.Last() as SlideId;
// Insert the new slide into the slide list after last slide
SlideId addedSlideId = destSlideIdList.InsertAfter(new SlideId(), lastSlideIdInDestPresentation);
addedSlideId.Id = lastSlideIdInDestPresentation.Id++;
addedSlideId.RelationshipId = destPresentationPart.GetIdOfPart(addedSlidePart);
// Get the existing slide master part.
SlideMasterPart destPresPartSlideMasterPart = destPresentationPart.SlideMasterParts.ElementAt(0);
string relationshipId = destPresentationPart.GetIdOfPart(destPresPartSlideMasterPart);
// Get the new slide master part.
SlideMasterPart sourcePresPartSlideMasterPart = sourcePresentationPart.SlideMasterParts.ElementAt(0);
// Remove the existing theme part.
destPresentationPart.DeletePart(destPresentationPart.ThemePart);
// Remove the old slide master part.
destPresentationPart.DeletePart(destPresPartSlideMasterPart);
// Import the new slide master part, and reuse the old relationship ID.
sourcePresPartSlideMasterPart = destPresentationPart.AddPart(sourcePresPartSlideMasterPart, relationshipId);
// Change to the new theme part.
destPresentationPart.AddPart(sourcePresPartSlideMasterPart.ThemePart);
var newSlideLayouts = new Dictionary<string, SlideLayoutPart>();
foreach (var slideLayoutPart in sourcePresPartSlideMasterPart.SlideLayoutParts)
{
newSlideLayouts.Add(GetSlideLayoutType(slideLayoutPart), slideLayoutPart);
}
// Remove the slide layout relationship on all slides.
foreach (var slidePart in destPresentationPart.SlideParts)
{
string layoutType = null;
if (slidePart.SlideLayoutPart != null)
{
// Determine the slide layout type for each slide.
layoutType = GetSlideLayoutType(slidePart.SlideLayoutPart);
// Delete the old layout part.
slidePart.DeletePart(slidePart.SlideLayoutPart);
}
SlideLayoutPart newLayoutPart = null;
if (layoutType != null && newSlideLayouts.TryGetValue(layoutType, out newLayoutPart))
{
// Apply the new layout part.
slidePart.AddPart(newLayoutPart);
}
}
FixSlideLayoutIds(destPresentationPart);
destPresentationPart.Presentation.Save();
}
}
}
static void FixSlideLayoutIds(PresentationPart presPart)
{
// Make sure that all slide layouts have unique ids.
foreach (SlideMasterPart slideMasterPart in presPart.SlideMasterParts)
{
foreach (SlideLayoutId slideLayoutId in slideMasterPart.SlideMaster.SlideLayoutIdList)
{
uniqueId++;
slideLayoutId.Id = (uint)uniqueId;
}
slideMasterPart.SlideMaster.Save();
}
}
/// <summary>
/// Get the slide layout type.
/// </summary>
/// <param name="slideLayoutPart"></param>
/// <returns></returns>
private static string GetSlideLayoutType(SlideLayoutPart slideLayoutPart)
{
CommonSlideData slideData = slideLayoutPart.SlideLayout.CommonSlideData;
return slideData.Name;
}
}
// Client code
Extensions.CopySlideTo(@"D:\temp\source.pptx", 1, @"D:\temp\dest.pptx");
現在當我打開結果( d:\\temp\\dest.pptx
)時看到
但是,如果單擊修復結果正常。
為什么會這樣? 如何解決? 我懷疑添加幻燈片布局有問題。
您沒有聲明變量類型。 這是你的意思嗎?
var uniqueId = GetMaxIdFromChild(destPresPart.Presentation.SlideMasterIdList);
幸運的是,我仍然取得了勝利:
public static void Copy(Stream sourcePresentationStream, uint copiedSlidePosition, Stream destPresentationStream)
{
using (var destDoc = PresentationDocument.Open(destPresentationStream, true))
{
var sourceDoc = PresentationDocument.Open(sourcePresentationStream, false);
var destPresentationPart = destDoc.PresentationPart;
var destPresentation = destPresentationPart.Presentation;
_uniqueId = GetMaxIdFromChild(destPresentation.SlideMasterIdList);
uint maxId = GetMaxIdFromChild(destPresentation.SlideIdList);
var sourcePresentationPart = sourceDoc.PresentationPart;
var sourcePresentation = sourcePresentationPart.Presentation;
int copiedSlideIndex = (int)--copiedSlidePosition;
int countSlidesInSourcePresentation = sourcePresentation.SlideIdList.Count();
if (copiedSlideIndex < 0 || copiedSlideIndex >= countSlidesInSourcePresentation)
throw new ArgumentOutOfRangeException(nameof(copiedSlidePosition));
SlideId copiedSlideId = sourcePresentationPart.Presentation.SlideIdList.ChildElements[copiedSlideIndex] as SlideId;
SlidePart copiedSlidePart = sourcePresentationPart.GetPartById(copiedSlideId.RelationshipId) as SlidePart;
SlidePart addedSlidePart = destPresentationPart.AddPart<SlidePart>(copiedSlidePart);
SlideMasterPart addedSlideMasterPart = destPresentationPart.AddPart(addedSlidePart.SlideLayoutPart.SlideMasterPart);
// Create new slide ID
maxId++;
SlideId slideId = new SlideId
{
Id = maxId,
RelationshipId = destDoc.PresentationPart.GetIdOfPart(addedSlidePart)
};
destPresentation.SlideIdList.Append(slideId);
// Create new master slide ID
_uniqueId++;
SlideMasterId slideMaterId = new SlideMasterId
{
Id = _uniqueId,
RelationshipId = destDoc.PresentationPart.GetIdOfPart(addedSlideMasterPart)
};
destDoc.PresentationPart.Presentation.SlideMasterIdList.Append(slideMaterId);
// change slide layout ID
FixSlideLayoutIds(destDoc.PresentationPart);
destDoc.PresentationPart.Presentation.Save();
}
sourcePresentationStream.Close();
destPresentationStream.Close();
}
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