I have already known that GraphViewModel should Inherit from PersistedDocument and override the
three methods named DoNew、DoSave and DoLoad . I am now confused about how to save GraphViewModel as a document and load it later. It will be pretty appreciated if someone can help me fix it.
I have already known that GraphViewModel should Inherit from PersistedDocument and override the three methods named DoNew、DoSave and DoLoad . I am now confused about how to save GraphViewModel as a document and load it later. It will be pretty appreciated if someone can help me fix it.