2010-05-06 31 views
3

我正在使用ItemsControl以十六進制顯示List<byte>。該ItemsPanelTemplateUniformGrid具有固定的列數:WPF - 字節數組到十六進制視圖(類似於Notepad ++ HEX-Editor插件)

<ItemsControl 
    HorizontalAlignment="Left" 
    VerticalAlignment="Top" 
    ItemsSource="{Binding}"> 
    <ItemsControl.ItemsPanel> 
     <ItemsPanelTemplate> 
      <UniformGrid Columns="16"/> 
     </ItemsPanelTemplate> 
    </ItemsControl.ItemsPanel> 
    <ItemsControl.ItemTemplate> 
     <DataTemplate> 
      <TextBlock Text="{Binding StringFormat='\{0:X2\}'}" Margin="5,5,5,0"/> 
     </DataTemplate> 
    </ItemsControl.ItemTemplate> 
</ItemsControl> 

我想前綴每一行與「地址」欄,就像你用記事本+ +「十六進制編輯器」插件看到。
也就是說,由於我有16列,每行應前綴是這樣的:

[00 01 02 0F ....]
[10 11 12 .... 1F]
[20 21 22 .... 2F]
...

有什麼建議?

回答

5

咩..我最後只說幹就幹,實施了IValueConverter的字節數組轉換成具有良好格式十六進制字符串:

/// <summary> 
/// Converts a byte array to a multi-row hex string containing 
/// byte offset indices as a prefix for each row. 
/// </summary> 
/// <example> 
/// <![CDATA[ 
/// 0000: 13 31 DC 81 95 2C 92 E5 
/// 0008: CE 14 F6 C7 2E CA 8F 13 
/// 0010: 11 2E AB 80 2E 19 63 D1 
/// 0018: 0D D6 88 2D 95 BF 03 FE 
/// 0020: 6F 8F 2C 8A D8 A9 60 B4 
/// ]]> 
/// </example> 
[ValueConversion(typeof(byte[]), typeof(String))] 
public class ByteArrayToIndexedHexStringConverter : IValueConverter { 

    /// <summary> 
    /// Converts a byte array to a multi-row hex string. 
    /// Each row is prefixed with the starting byte offset and contains 
    /// a fixed number of bytes. 
    /// </summary> 
    /// <param name="value">The byte array to convert.</param> 
    /// <param name="targetType"></param> 
    /// <param name="parameter">A string, parsable to an integer, indicating 
    /// how many bytes per row. Typically 8 or 16.</param> 
    /// <param name="culture"></param> 
    /// <returns>A string that looks similar to the HexEdit plugin for Notepad++.</returns> 
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture) { 

     if (value == null) return null; 

     if (!(value is byte[])) { 
      throw new ArgumentException("'value' must be a byte array."); 
     } 

     int numBytesPerRow; 
     if ((parameter == null) 
      || !(parameter is string) 
      || !(int.TryParse((string)parameter, out numBytesPerRow))) { 

      throw new ArgumentException("'parameter' must be a string parsable to an integer (numBytesPerRow)."); 
     } 

     var hexSplit = BitConverter.ToString((byte[])value) 
      .Replace('-', ' ') 
      .Trim() 
      .SplitIntoChunks(numBytesPerRow * 3) 
      .ToList(); 

     int byteAddress = 0; 
     var sb = new StringBuilder(); 

     for (int i = 0; i < hexSplit.Count; i++) { 
      sb.AppendLine(byteAddress.ToString("X4") + ":\t" + hexSplit[i]); 
      byteAddress += numBytesPerRow; 
     } 

     return sb.ToString(); 
    } 

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) { 
     throw new NotSupportedException(); 
    } 
} 

我用喬恩的SplitIntoChunks實現。

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