Question

我是WPF的新手，并不了解绑定概念。我使用此answer将枚举绑定到单选按钮。

该项目的一般概念是我在WPF中实现自己的TextEditor。我可以同时打开多个TextFiles;我有一个MainWindow，它有一个MenuItem用于选择DisplayForamt：Binary，Hex。我想将它绑定到File.cs中的属性。

问题是：当我打开两个文件并单击HexaDecimal for File1时，File2的格式应保持二进制。但是，两个文件的格式都会更改。我究竟做错了什么？

 //In MainWindow.xaml:
 <MenuItem Header="_DisplayFormat">
    <RadioButton Content="_Binary" IsChecked="{Binding Path=DisplayFormat, Converter={StaticResource EnumToBooleanConverter}, ConverterParameter={x:Static local:displayFormat.Binary}}" />
    <RadioButton Content="_Hexadecimal" IsChecked="{Binding Path=DisplayFormat, Converter={StaticResource EnumToBooleanConverter}, ConverterParameter={x:Static local:displayFormat.HexaDecimal}}" />        
 </MenuItem>

//In MainWindow.xaml.cs:
public class EnumToBooleanConverter : IValueConverter
{
   public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
   {
      return value.Equals(parameter);
   }

   public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
   {
            return value.Equals(true) ? parameter : Binding.DoNothing;
   }
}

 //When a new tab is added this is the code
 Paragraph paragraph = new Paragraph();
 paragraph.Inlines.Add(System.IO.File.ReadAllText(filePath));
 FlowDocument document = new FlowDocument(paragraph);

 mcRTB.Document = document;

 TextFile txtFile = new SegmentFile { Path = filePath, DataContent = document.ToString() };
 txtFileArray [EditorTabcontrol.SelectedIndex+1] = txtFile ;
 this.DataContext = txtFile ;
 mcRTB.TextChanged += new System.Windows.Controls.TextChangedEventHandler(TextFile_DataContentChanged);

 tab.Title = ExtractFileName(filePath);
 tab.Content = mcRTB;
 tab.Focus();
 tab.DataContext = txtFile ;

//InTextFile.cs
public enum displayFormat { Binary, HexaDecimal};

public class TextFile : INotifyPropertyChanged
{
   private displayFormat m_format;

   [DefaultValue(displayFormat.Binary)]
   public displayFormat DisplayFormat { get { return m_format; } set { m_format = value; } }
}

将单选按钮绑定到枚举不起作用

0 个答案: