[WPF]操作RichTextBox,取值、赋值、清空 【转】
开发环境
vs2015+win764+.net3.5
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 xw = 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 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();
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(xw); 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 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;
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(0, System.IO.SeekOrigin.Begin); System.IO.StreamReader sr = new System.IO.StreamReader(ms); rtf = sr.ReadToEnd(); }
操作RichTextBox
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());