//We needed to separate the rels parts from the other parts
//because if a rels part for a part occurred earlier than the part itself in the array,
//the rels part would be closed and then when close the part and try to persist the relationships
//for the particular part, it would throw an exception
private bool DoClose(PackagePart p)
{
if (!p.IsClosed)
{
if (PackUriHelper.IsRelationshipPartUri(p.Uri) && PackUriHelper.ComparePartUri(p.Uri, PackageRelationship.ContainerRelationshipPartName) != 0)
{
//First we close the source part.
//Note - we can safely do this as DoClose is being called on all parts. So ultimately we will end up
//closing the source part as well.
//This logic only takes care of out of order parts.
PackUriHelper.ValidatedPartUri owningPartUri =
(PackUriHelper.ValidatedPartUri)PackUriHelper.GetSourcePartUriFromRelationshipPartUri(p.Uri);
//If the source part for this rels part exists then we close it.
PackagePart sourcePart;
if (_partList.TryGetValue(owningPartUri, out sourcePart))
sourcePart.Close();
}
p.Close();
}
return true;
}
