RichTextBox operation

</pre><p>1.  Convert content to array </p><pre name="code" class="csharp">FlowDocument fd = richTextBox1.Document;
System.IO.Stream s = new System.IO.MemoryStream();
System.Windows.Markup.XamlWriter.Save(fd, s);
byte[] data = new byte[s.Length];
s.Position = 0;
s.Read(data, 0, data.Length);s.Close();

2. Load contents from the array

System.IO.Stream news = new System.IO.MemoryStream(data);
FlowDocument newfd = System.Windows.Markup.XamlReader.Load(news) as FlowDocument;
richTextBox2.Document = newfd;

3. command

 Copy ：   ToolBarCopy.Command = System.Windows.Input.ApplicationCommands.Copy;
  shear ：   toolBarCut.Command = System.Windows.Input.ApplicationCommands.Cut;
  Paste ：   ToolBarPaste.Command = System.Windows.Input.ApplicationCommands.Paste;
  revoke ：   ToolBarUndo.Command = System.Windows.Input.ApplicationCommands.Undo;
  Restore ：   ToolBarRedo.Command = System.Windows.Input.ApplicationCommands.Redo;
  Writing in the middle ：  toolBarContentCenter.Command = System.Windows.Documents.EditingCommands.AlignCenter;
  The words are on the right ：  toolBarContentRight.Command = System.Windows.Documents.EditingCommands.AlignRight;
  Words on the left ：  toolBarContentLeft.Command = System.Windows.Documents.EditingCommands.AlignLeft;
  Arrange in order ：  ToolBarNumbering.Command = System.Windows.Documents.EditingCommands.ToggleNumbering;
  Out of order ：  ToolBarBullets.Command = System.Windows.Documents.EditingCommands.ToggleBullets;

In actual use, it is found that only such operation , Button cannot be clicked , Put the button on toolbar Li caike .

4. Set the color

System.Windows.Media.Color clr =
System.Windows.Media.Color.FromArgb(BkColor.A,BkColor.R,BkColor.G,BkColor.B);
richTextBox1.Selection.ApplyPropertyValue(TextElement.ForegroundProperty, new SolidColorBrush(clr));

5. Set the font

richTextBox1.Selection.ApplyPropertyValue(TextElement.FontFamilyProperty,SelFnt);

6. Set size

richTextBox1.Selection.ApplyPropertyValue(TextElement.FontSizeProperty, isize.ToString());

isize Integer.