WPF-20：richtextbox相关操作（转）

WPF中的richtextbox与winform中的richtextbox的使用不同，看看下面的基本操作：

一、取出richTextBox里面的内容
 (1)将richTextBox的内容以字符串的形式取出

 string xw = System.Windows.Markup.XamlWriter.Save(richTextBox.Document);

 (2)将richTextBox的类容以二进制数据的方法取出

     FlowDocument document = richTextBox.Document;       System.IO.Stream s = new System.IO.MemoryStream();        System.Windows.Markup.XamlWriter.Save(document, s);                byte[] data = new byte[s.Length];       s.Position = 0;       s.Read(data, 0, data.Length);        s.Close(); 

二、richTextBox赋值
 (1)将字符串转换为数据流赋值给richTextBox中  

 System.IO.StringReader sr = new System.IO.StringReader(xw);    System.Xml.XmlReader xr = System.Xml.XmlReader.Create(sr);    richTextBox1.Document = (FlowDocument)System.Windows.Markup.XamlReader.Load(xr);

(2)将二进制数据赋值给richTextBox

    System.IO.Stream ss = new System.IO.MemoryStream(data);      FlowDocument doc = System.Windows.Markup.XamlReader.Load(ss) as FlowDocument;       ss.Close();       richTextBox1.Document = doc;

三、清空RichTextBox的方法

System.Windows.Documents.FlowDocument doc = RichTextBox.Document; doc.Blocks.Clear(); 

四、如何将一个String类型的字符串赋值给richTextBox

myRTB.Document = new FlowDocument(new Paragraph(new Run(myString)));  FlowDocument doc = new FlowDocument();  Paragraph p = new Paragraph();  // Paragraph 类似于 html 的 P 标签  Run r = new Run(myString);      // Run 是一个 Inline 的标签  p.Inlines.Add(r);  doc.Blocks.Add(p);  myRTB.Document = doc;

五、将richTextBox中的内容以rtf的格式完全取出

     string rtf = string.Empty;              TextRange textRange = new TextRange(richTextBox.Document.ContentStart, richTextBox.Document.ContentEnd);              using (System.IO.MemoryStream ms = new System.IO.MemoryStream())              {                  textRange.Save(ms, System.Windows.DataFormats.Rtf);                  ms.Seek(0, System.IO.SeekOrigin.Begin);                  System.IO.StreamReader sr = new System.IO.StreamReader(ms);                  rtf = sr.ReadToEnd();              }

六、其他操作

 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;  字体变大：              int fontSize = Convert.ToInt32(richTextBox.Selection.GetPropertyValue(TextElement.FontSizeProperty));              fontSize++;              richTextBox.Selection.ApplyPropertyValue(TextElement.FontSizeProperty, fontSize.ToString());