WPF中的RichTextBox

时间：2023-11-21 16:32:50

原文链接：http://blog.csdn.net/wuzhengqing1/article/details/7010902

取出richTextBox里面的内容

第一种方法：将richTextBox的内容以字符串的形式取出

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

第二种方法：将richTextBox的类容以二进制数据的方法取出

     FlowDocument     doc    = richTextBox.Document;

     System.IO.Stream stream = new System.IO.MemoryStream();

     System.Windows.Markup.XamlWriter.Save(doc, stream);

     byte[] data = new byte[stream.Length];

     stream.Position = ;

     stream.Read(data, , data.Length);

     stream.Close();

赋值给richTextBox

第一种方法：将字符串转换为数据流赋值给richTextBox中

  System.IO.StringReader sr = new System.IO.StringReader(str);

  System.Xml.XmlReader   xr = System.Xml.XmlReader.Create(sr);

  richTextBox1.Document     = (FlowDocument)System.Windows.Markup.XamlReader.Load(xr);

第二种方法：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;

清空RichTextBox的方法

         System.Windows.Documents.FlowDocument doc = richTextBox.Document;

         doc.Blocks.Clear();

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    para = new Paragraph();//------Paragraph 类似于 html 的 P 标签

Run          run  = new Run(myString);//----Run 是一个 Inline 的标签

para.Inlines.Add(run);

doc.Blocks.Add(para);

myRTB.Document = doc;

如何将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(, System.IO.SeekOrigin.Begin);

    System.IO.StreamReader sr = new System.IO.StreamReader(ms);

    rtf = sr.ReadToEnd();

}

RichTextBox的操作：

       using System.Windows.Input;

       using System.Windows.Documents;

       //---复制，剪切，粘贴，撤销，重做

       ToolBarCopy.Command  = ApplicationCommands.Copy;

       ToolBarCut.Command   = ApplicationCommands.Cut;

       ToolBarPaste.Command = ApplicationCommands.Paste;

       ToolBarUndo.Command  = ApplicationCommands.Undo;

       ToolBarRedo.Command  = ApplicationCommands.Redo;

       //---文字居中/右/左

       ToolBarContentCenter.Command = EditingCommands.AlignCenter;

       ToolBarContentRight.Command  = EditingCommands.AlignRight;

       ToolBarContentLeft.Command   = EditingCommands.AlignLeft;

       //---有序/无序排列

       ToolBarNumbering.Command = EditingCommands.ToggleNumbering;

       ToolBarBullets.Command   = EditingCommands.ToggleBullets;//---字体变大

       int fontSize = Convert.ToInt32(richTextBox.Selection.GetPropertyValue(
                                         TextElement.FontSizeProperty));

       fontSize++;

       richTextBox.Selection.ApplyPropertyValue(TextElement.FontSizeProperty, 
                                                fontSize.ToString());

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