保存、加载、打印WPF中的RichContent

void
{
 
 
   range = 
   fStream = 
   range.Save(fStream, 
   fStream.Close();
}
 
 
{
 
 
 
   {
      range = 
      fStream = 
      range.Load(fStream, 
      fStream.Close();
   }
}
 
private void PrintCommand()   PrintDialog pd = new PrintDialog();   if ((pd.ShowDialog() == true) )as Visual, "printing as visual");IDocumentPaginatorSource)RTB.Document).DocumentPaginator), 
"printing as paginator"); 
{
 
 
   {
      //use either one of the below
      pd.PrintVisual(RTB 
      pd.PrintDocument((((
   }
} SaveXamlPackage(string _fileName)   TextRange range;   FileStream fStream;new TextRange(RTB.Document.ContentStart, RTB.Document.ContentEnd);new FileStream(_fileName, FileMode.Create);DataFormats.XamlPackage);void LoadXamlPackage(string _fileName)   TextRange range;   FileStream fStream;   if (File.Exists(_fileName))new TextRange(RTB.Document.ContentStart, RTB.Document.ContentEnd);new FileStream(_fileName, FileMode.OpenOrCreate);DataFormats.XamlPackage);