先来看一下运行效果：
一、项目结构
这里需要注意lib文件夹下导入的类库，这个Demo需要这些dll.
二、代码折叠
需要实现IFoldingStrategy中的 GenerateFoldMarkers 方法，代码如下：
using ICSharpCode.TextEditor.Document; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace JackWangCUMT.WinForm { /// <summary> /// The class to generate the foldings, it implements ICSharpCode.TextEditor.Document.IFoldingStrategy /// </summary> public class MingFolding : IFoldingStrategy { /// <summary> /// Generates the foldings for our document. /// </summary> /// <param>The current document.</param> /// <param>The filename of the document.</param> /// <param>Extra parse information, not used in this sample.</param> /// <returns>A list of FoldMarkers.</returns> public List<FoldMarker> GenerateFoldMarkers(IDocument document, string fileName, object parseInformation) { List<FoldMarker> list = new List<FoldMarker>(); //stack 先进先出 var startLines = new Stack<int>(); // Create foldmarkers for the whole document, enumerate through every line. for (int i = 0; i < document.TotalNumberOfLines; i++) { // Get the text of current line. string text = document.GetText(document.GetLineSegment(i)); if (text.Trim().StartsWith("#region")) // Look for method starts { startLines.Push(i); } if (text.Trim().StartsWith("#endregion")) // Look for method endings { int start = startLines.Pop(); // Add a new FoldMarker to the list. // document = the current document // start = the start line for the FoldMarker // document.GetLineSegment(start).Length = the ending of the current line = the start column of our foldmarker. // i = The current line = end line of the FoldMarker. // 7 = The end column list.Add(new FoldMarker(document, start, document.GetLineSegment(start).Length, i, 57, FoldType.Region, "...")); } //支持嵌套 {} if (text.Trim().StartsWith("{")) // Look for method starts { startLines.Push(i); } if (text.Trim().StartsWith("}")) // Look for method endings { if (startLines.Count > 0) { int start = startLines.Pop(); list.Add(new FoldMarker(document, start, document.GetLineSegment(start).Length, i, 57, FoldType.TypeBody, "...}")); } } // /// <summary> if (text.Trim().StartsWith("/// <summary>")) // Look for method starts { startLines.Push(i); } if (text.Trim().StartsWith("/// <returns>")) // Look for method endings { int start = startLines.Pop(); //获取注释文本（包括空格） string display = document.GetText(document.GetLineSegment(start + 1).Offset, document.GetLineSegment(start + 1).Length); //remove /// display = display.Trim().TrimStart('https://www.jb51.net/'); list.Add(new FoldMarker(document, start, document.GetLineSegment(start).Length, i, 57, FoldType.TypeBody, display)); } } return list; } } }
三、高亮配置
拷贝CSharp-Mode.xshd为 JackCSharp-Mode.xshd ，将其中的名字修改为： SyntaxDefinition name = "JackC#" ，并添加高亮关键字，如下：
这样代码中出现的JackWang就会高亮。下面的代码片段将自定义高亮文件进行加载，并用SetHighlighting进行设置，这里一定注意目录下必须有xshd的配置文件，否则高亮将失效。
textEditor.Encoding = System.Text.Encoding.UTF8; textEditor.Font = new Font("Hack",12); textEditor.Document.FoldingManager.FoldingStrategy = new JackWangCUMT.WinForm.MingFolding(); textEditor.Text = sampleCode; //自定义代码高亮 string path = Application.StartupPath+ "\\HighLighting"; FileSyntaxModeProvider fsmp; if (Directory.Exists(path)) { fsmp = new FileSyntaxModeProvider(path); HighlightingManager.Manager.AddSyntaxModeFileProvider(fsmp); textEditor.SetHighlighting("JackC#"); }
为了保持代码适时进行折叠，这里监听文本变化，如下所示：
private void TextEditor_TextChanged(object sender, EventArgs e) { //更新，以便进行代码折叠 textEditor.Document.FoldingManager.UpdateFoldings(null, null); }
最后说明的是，我们可以定义一个格式化代码的类，来格式化C#代码：
总结
以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作能带来一定的帮助，如果有疑问大家可以留言交流。
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