Re: Updating slide r:Id relatationship to Master

Hi, I am working with OpenXML SDK 1.0 (as 2.0 isn't licenced yet) in C#, and I have managed to merge 2 presentations together ok.
The one problem I have is that it says "PowerPoint has found unreadable content" when opening. Having looked through the XML files, the only problem I have found is the r:ID in my copied slide to its master slide is still the old/original presentations r:Id not the copied over Master.
Can anyone point me in the direction of how I update this relationship?

Hi Corker,

Basically get the rID and then update it accordingly.

To summarize:

Get the Releationship id you want to use
Open the XML file where you need to replace the new ID with the old one.
Ex:

Something like
//Get the Slide Master releationshipid generated in Presentation.xml.rels

string releationshipId = pptMain.GetIdOfPart(pptSlideMaster);

// Replace the Slide Master releationshipid in the presentation.xml document so that presentation.xml and Presentation.xml.rels should match

XmlNamespaceManager nsManager = new XmlNamespaceManager(xDoc.NameTable);

nsManager.AddNamespace("p", xDoc.DocumentElement.NamespaceURI);

XmlNodeList nodelist = xDoc.SelectNodes("//p:sldMasterIdLst/p:sldMasterId", nsManager);

foreach (XmlNode node in nodelist)

{

node.Attributes["r:id"].Value = releationshipId;

}

HTH
Ankush