Styjun

Hi how can I change the realationship and the uri.
I want to merge footer and header from different files but the uri and relationship id is the same in this case /word/media/image1.png in both files and rId1.

What I want is before merging the documents I want to change all relationship with a unique GUID. and the uri should be something like

/word/media/rIddb654056-f112-4695-b38b-0f4f5f81a1ed.png

What is happening now is that only 1 image get transfered to the destination document.

 public void ReplaceBlipRealtionShip(HeaderPart part)
 
 foreach (var imgPart in part.GetPartsOfType<ImagePart>().Take(1).ToList())
 
 var existingId = part.GetIdOfPart(imgPart);
 var blip = part.Header.Descendants<A.Blip>()
 .Where(x => x.Embed.Value == existingId).FirstOrDefault();



 if (blip != null)
 
 var newId = OpenXmlGenericHelper.GenerateUniqueRId();
 var extension = Path.GetExtension(imgPart.Uri.ToString());
 Uri imageUri = new Uri($"/word/media/newId.extension", UriKind.Relative);
 // Create "image" part in /word/media
 // Change content type for other image types.
 var packageImagePart =
 WordDoc.Package.CreatePart(imageUri, imgPart.ContentType);

 imgPart.GetStream().CopyTo(packageImagePart.GetStream());


 var packagePart = part.OpenXmlPackage.Package.GetPart(part.Uri);


 var imageReleationshipPart = packagePart.CreateRelationship(
 new Uri($"/word/media/newId.extension", UriKind.Relative),
 motpackaging::System.IO.Packaging.TargetMode.Internal, "http://schemas.openxmlformats.org/officeDocument/2006/relationships/image");

 //part.ChangeIdOfPart(imgPart, newId);
 this.WordDoc.Save();
 
 
 

Extra code:

private List<KeyValuePair<Type, Stream>> CopyParts(OpenXmlPart srcPart, OpenXmlPart destPart)
 
 if(srcPart is HeaderPart)
 
 ReplaceBlipRealtionShip((HeaderPart)srcPart);
 

 var listToAdd = new List<KeyValuePair<Type, Stream>>();
 foreach (var idPart in srcPart.Parts)
 
 var part = srcPart.GetPartById(idPart.RelationshipId);
 if (part is ImagePart)
 
 var newPart = destPart.AddNewPart<ImagePart>(part.ContentType, idPart.RelationshipId);
 listToAdd.Add(new KeyValuePair<Type, Stream>(typeof(ImagePart), part.GetStream()));
 
 else if (part is DiagramStylePart)
 
 destPart.AddNewPart<DiagramStylePart>(idPart.RelationshipId);
 listToAdd.Add(new KeyValuePair<Type, Stream>(typeof(DiagramStylePart), part.GetStream()));
 
 else if (part is DiagramColorsPart)
 
 destPart.AddNewPart<DiagramColorsPart>(idPart.RelationshipId);
 listToAdd.Add(new KeyValuePair<Type, Stream>(typeof(DiagramColorsPart),
 part.GetStream()));
 
 else if (part is DiagramDataPart)
 
 destPart.AddNewPart<DiagramDataPart>(idPart.RelationshipId);
 listToAdd.Add(new KeyValuePair<Type, Stream>(typeof(DiagramDataPart), part.GetStream()));
 
 else if (part is DiagramPersistLayoutPart)
 
 destPart.AddNewPart<DiagramPersistLayoutPart>(idPart.RelationshipId);
 listToAdd.Add(new KeyValuePair<Type, Stream>(typeof(DiagramPersistLayoutPart),
 part.GetStream()));
 
 else if (part is StyleDefinitionsPart)
 
 destPart.AddNewPart<StyleDefinitionsPart>(idPart.RelationshipId);
 listToAdd.Add(new KeyValuePair<Type, Stream>(typeof(StyleDefinitionsPart),
 part.GetStream()));
 
 else if (part is StylesWithEffectsPart)
 
 destPart.AddNewPart<StylesWithEffectsPart>(idPart.RelationshipId);
 listToAdd.Add(new KeyValuePair<Type, Stream>(typeof(StylesWithEffectsPart),
 part.GetStream()));
 
 else if (part is ThemePart)
 
 destPart.AddNewPart<ThemePart>(idPart.RelationshipId);
 listToAdd.Add(new KeyValuePair<Type, Stream>(typeof(ThemePart),
 part.GetStream()));
 
 else if (part is PivotTablePart)
 
 destPart.AddNewPart<PivotTablePart>(idPart.RelationshipId);
 listToAdd.Add(new KeyValuePair<Type, Stream>(typeof(PivotTablePart),
 part.GetStream()));
 
 else if (part is TableDefinitionPart)
 
 destPart.AddNewPart<TableDefinitionPart>(idPart.RelationshipId);
 listToAdd.Add(new KeyValuePair<Type, Stream>(typeof(TableDefinitionPart),
 part.GetStream()));
 
 else if (part is TableStylesPart)
 
 destPart.AddNewPart<TableStylesPart>(idPart.RelationshipId);
 listToAdd.Add(new KeyValuePair<Type, Stream>(typeof(TableStylesPart),
 part.GetStream()));
 
 

 return listToAdd;
 

 private void _PrependHeader(HeaderPart srcHeaderPart, HeaderPart destHeaderPart, MainDocumentPart destMainPart)
 
 if (srcHeaderPart != null)
 
 // Copy content of header to new header
 destHeaderPart.FeedData(srcHeaderPart.GetStream());

 if (destHeaderPart.Header != null)
 
 // Keep formatting
 KeepParagraphStyle(destHeaderPart.Header);
 

 // Get all ids of every 'Parts'
 var listToAdd = CopyParts(srcHeaderPart, destHeaderPart);
 // Foreach Part, copy stream to new header
 var i = 0;
 foreach (var idPart in destHeaderPart.Parts)
 
 var part = destHeaderPart.GetPartById(idPart.RelationshipId);
 if (part.GetType() == listToAdd[i].Key)
 
 part.FeedData(listToAdd[i].Value);
 
 i++;
 
 
 else
 
 destMainPart.DeleteParts(destMainPart.HeaderParts);
 var sectToRemovePrs = destMainPart.Document.Body.Descendants<SectionProperties>();
 foreach (var sectPr in sectToRemovePrs)
 
 // Delete reference of old header
 sectPr.RemoveAllChildren<HeaderReference>();