Snapshots of Control in time using VisualBrush stored in one Fixed(Flow)Document

Question

I need to take snapshots of Control in time and store them in one FixedDocument. Problem is that VisualBrush is somehow \"lazy\" and do not evaluate itself by adding it to d

Answer 1

I used serialization:

string svb = XamlWriter.Save(vb.CloneCurrentValue());
// Replace all "Name" attributes (I don't need them already and deserialization would crash on them) with "Tag" - not best practice but it's fast :)
svb = svb.Replace("Name", "Tag");
rect.Fill((VisualBrush)XamlReader.Parse(svb));

EDIT

Better way is to save Visual as XPS document and then take the Visual back. (De)serialization has some problems with SharedSizeGroups and many other "reference like" things.

XpsDocumentWriter writer = XpsDocument.CreateXpsDocumentWriter(doc);
control.InvalidateArrange();
UpdateLayout();
writer.Write(control);
Visual capture = doc.GetFixedDocumentSequence().DocumentPaginator.GetPage(0).Visual;