/// <summary>
/// Reloads the associated Office document, but keeping the OfficeParts currently shown in the GUI. This
/// ensures that, if the files have been modified externally, the program is still looking at their latest
/// version. Otherwise, we might accidentally lose those external changes when saving
/// </summary>
public void Reload()
{
// Store the file name (otherwise, it will have been erased after calling Dispose)
var fileName = Document.Name;
// Dispose current document (not needed as references to its parts are stored in their View models anyway)
Document.Dispose();
// Then, reload it
Document = new OfficeDocument(fileName);
// Delete all its original parts
foreach (var type in Enum.GetValues(typeof(XmlPart)).OfType <XmlPart>())
{
Document.RemoveCustomPart(type);
}
// Instead, use the parts currently shown in the editor
foreach (var part in Children.OfType <OfficePartViewModel>())
{
if (part.Part == null)
{
continue;
}
Document.SaveCustomPart(part.Part.PartType, part.OriginalContents, true);
// Re-map the Part. This ensures that the PackagePart stored internally in OfficePart points to
// the right location, in case it is needed
part.Reload();
}
}
