/// <summary>
/// Replaces the document's contents with the contents of the given replacement's contents.
/// </summary>
/// <param name="document">The destination document</param>
/// <param name="replacement">The source document</param>
/// <returns>The original document with replaced contents</returns>
public static OpenXmlPackage ReplaceWith(this OpenXmlPackage document,
OpenXmlPackage replacement)
{
if (document == null)
{
throw new ArgumentNullException("document");
}
if (replacement == null)
{
throw new ArgumentNullException("replacement");
}
// Delete all parts (i.e., the direct relationship targets and their
// children).
document.DeleteParts(document.GetPartsOfType <OpenXmlPart>());
// Add the replacement's parts to the document.
foreach (var part in replacement.Parts)
{
document.AddPart(part.OpenXmlPart, part.RelationshipId);
}
// Save and return.
document.Package.Flush();
return(document);
}