HexViewer

HexViewer is a reusable WPF UI control for displaying and inspecting binary data in hexadecimal format.

The control is designed for debugging, protocol analysis, and low-level data inspection, with a focus on clarity, simplicity, and safe read-only interaction.

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Features

• Display raw binary data in hexadecimal representation
• Designed as a reusable WPF control
• Read-only by default, suitable for inspection and diagnostics
• Supports binding to binary data from ViewModels
• Can be embedded into existing WPF applications
• Optional UI elements can be enabled or disabled

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Usage

HexViewer is intended to be used as a UI element inside a WPF application.

XAML example

<local:HexViewer Data="{Binding RawData, Mode=OneWay}" PreviewMouseWheel="HexVisualViewer_PreviewMouseWheel"
                 Visibility="{Binding RawData, Converter={StaticResource CollectionCountToVisibilityConverter}}"
                 IsLoadFromBinVisible="False" />

```csharp
### Converter example
     public class CollectionCountToVisibilityConverter : IValueConverter
     {
         public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
         {
             if (value is ICollection collection)
                 return collection.Count > 0 ? Visibility.Visible : Visibility.Collapsed;

             return Visibility.Collapsed;
         }

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

```csharp
### PreviewMouseWheel example
 PreviewMouseWheel="HexVisualViewer_PreviewMouseWheel":
      private void HexVisualViewer_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
      {
          DependencyObject parent = (DependencyObject)sender;
          while (parent != null && !(parent is ScrollViewer))
              parent = VisualTreeHelper.GetParent(parent);

          if (parent is ScrollViewer scrollViewer)
          {
              double scrollStep = e.Delta / 40.0;
              scrollViewer.ScrollToVerticalOffset(scrollViewer.VerticalOffset - scrollStep);
              e.Handled = true;
          }
      }