initial commit

CSharp/Controls/LogViewer.Avalonia/Converters/EventIdConverter.cs

@@ -0,0 +1,22 @@
+using System.Globalization;
+using Avalonia.Data.Converters;
+using Microsoft.Extensions.Logging;
+
+namespace LogViewer.Avalonia.Converters;
+
+public class EventIdConverter : IValueConverter
+{
+    public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
+    {
+        if (value is null)
+            return "0";
+
+        EventId eventId = (EventId)value;
+
+        return eventId.ToString();
+    }
+
+    // If not implemented, an error is thrown
+    public object ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
+        => new EventId(0, value?.ToString() ?? string.Empty);
+}