RichTextbox 操作

</pre><p>1. 将内容转换为数组</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. 从数组中加载内容

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

3. 命令

复制：   ToolBarCopy.Command = System.Windows.Input.ApplicationCommands.Copy;
 剪切：   toolBarCut.Command = System.Windows.Input.ApplicationCommands.Cut;
 粘贴：   ToolBarPaste.Command = System.Windows.Input.ApplicationCommands.Paste;
 撤销：   ToolBarUndo.Command = System.Windows.Input.ApplicationCommands.Undo;
 复原：   ToolBarRedo.Command = System.Windows.Input.ApplicationCommands.Redo;
 文字居中：  toolBarContentCenter.Command = System.Windows.Documents.EditingCommands.AlignCenter;
 文字居右：  toolBarContentRight.Command = System.Windows.Documents.EditingCommands.AlignRight;
 文字居左：  toolBarContentLeft.Command = System.Windows.Documents.EditingCommands.AlignLeft;
 有序排列：  ToolBarNumbering.Command = System.Windows.Documents.EditingCommands.ToggleNumbering;
 无序排列：  ToolBarBullets.Command = System.Windows.Documents.EditingCommands.ToggleBullets;

在实际使用时发现只这样操作的话，按钮无法点击，需将按钮放在toolbar里才可。

4. 设置颜色

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. 设置字体

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

6. 设置大小

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