Method of IBaseDocument
Reloads the document from current path (source is empty), or loads from given path (source is string) or from stream (source is IStream). If bModifiedCheck set, use will be asked to confirm reload if changes exist.
BaseDocument.Load(vSource, bModifiedCheck);
BaseDocument.Load vSource, bModifiedCheck
HRESULT hr = BaseDocument.Load(vSource, bModifiedCheck);