c# - AvalonEdit 在代码中更改语法突出显示

Question

我想在我的代码中更改 AvalonEdit 的语法突出显示。

XAML：

 <avalonEdit:TextEditor Name="textEditor" SyntaxHighlighting="{Binding syntaxHighlighting}" />

C＃：

public string syntaxHighlighting { get; set; }

public MainWindow()
{
     InitializeComponent();
     syntaxHighlighting = "C#";
     DataContext = this;
}

但是语法高亮没有改变。我究竟做错了什么？我的问题有更好的解决方案吗？

Answer 1

ICSharpCode.AvalonEdit.Highlighting.HighlightingManager.Instance.GetDefinition("C#");

Answer 2

干得好：

ICSharpCode.AvalonEdit.TextEditor textEditor = new ICSharpCode.AvalonEdit.TextEditor();
textEditor.ShowLineNumbers = true;
string dir = @"C:\Program Files\MyFolder\";
#if DEBUG
dir = @"C:\Dev\Sandbox\SharpDevelop-master\src\Libraries\AvalonEdit\ICSharpCode.AvalonEdit\Highlighting\Resources\";
#endif

Stream xshd_stream = File.OpenRead(dir + "CSharp-Mode.xshd");
XmlTextReader xshd_reader = new XmlTextReader(xshd_stream);
textEditor.SyntaxHighlighting = ICSharpCode.AvalonEdit.Highlighting.Xshd.HighlightingLoader.Load(xshd_reader, ICSharpCode.AvalonEdit.Highlighting.HighlightingManager.Instance);
xshd_reader.Close();
xshd_stream.Close();

编辑：

由于 ICSharp.TextEditor 在 WinForms 中抛出 AccessViolations，我在 WinForms 中使用 AvalonEdit：

ElementHost host = new ElementHost();
host.Size = new Size(200, 100);
host.Location = new Point(100, 100);
host.Child = textEditor;
this.Controls.Add(host);

Answer 3

如果要绑定到字符串，可以定义一个 IValueConverter 来包装内置的 HighlightingDefinitionTypeConverter：

using System;
using System.Globalization;
using System.Windows.Data;
using ICSharpCode.AvalonEdit.Highlighting;

public class HighlightingDefinitionConverter : IValueConverter
{
    private static readonly HighlightingDefinitionTypeConverter Converter = new HighlightingDefinitionTypeConverter();

    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        return Converter.ConvertFrom(value);
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        return Converter.ConvertToString(value);
    }
}

然后，只需将转换器添加到您的绑定中：

<avalonEdit:TextEditor Name="textEditor" SyntaxHighlighting="{Binding syntaxHighlighting, Converter={StaticResource HighlightingDefinitionConverter}}" />

Answer 4

只需使用 TypeConverter

var typeConverter = new HighlightingDefinitionTypeConverter();
var xmlSyntaxHighlighter = (IHighlightingDefinition)typeConverter.ConvertFrom("XML");
var csSyntaxHighlighter = (IHighlightingDefinition)typeConverter.ConvertFrom("C#");
CSharpEditor.SyntaxHighlighting = csSyntaxHighlighter;
XmlEditor.SyntaxHighlighting = xmlSyntaxHighlighter;

Answer 5

syntaxHighlighting 不是字符串！您的代码可能无法编译！请注意，此处 XAML 中的 SyntaxHighlighting 使用标记扩展，它实例化 SyntaxHighlighting 的实例，而不是字符串。

private void OnTabLoaded(object sender, RoutedEventArgs e)
{
   textEditor.SyntaxHighlighting = HighlightingLoader.Load(..., HighlightingManager.Instance);
   textEditor.SyntaxHighlighting.MainRuleSet=...
}

去sharpdevelop下载源代码。