Normal method is decompiled as lambda expression

[CreateAndInject]

Language setting: C#1.0

public static MySettings Default
{
	get
	{
		if (!addedHandler)
		{
			object obj = addedHandlerLockObject;
			ObjectFlowControl.CheckForSyncLockOnValueType(obj);
			bool lockTaken = false;
			try
			{
				Monitor.Enter(obj, ref lockTaken);
				if (!addedHandler)
				{
					MyProject.Application.Shutdown += new ShutdownEventHandler(AutoSaveSettings);
					addedHandler = true;
				}
			}
			finally
			{
				if (lockTaken)
				{
					Monitor.Exit(obj);
				}
			}
		}
		return defaultInstance;
	}
}

Language setting: >=C#2.0

public static MySettings Default
{
	get
	{
		if (!addedHandler)
		{
			object obj = addedHandlerLockObject;
			ObjectFlowControl.CheckForSyncLockOnValueType(obj);
			bool lockTaken = false;
			try
			{
				Monitor.Enter(obj, ref lockTaken);
				if (!addedHandler)
				{
					MyProject.Application.Shutdown += [DebuggerNonUserCode] [EditorBrowsable(EditorBrowsableState.Advanced)] (object sender, EventArgs e) =>
					{
						if (MyProject.Application.SaveMySettingsOnExit)
						{
							MySettingsProperty.Settings.Save();
						}
					};
					addedHandler = true;
				}
			}
			finally
			{
				if (lockTaken)
				{
					Monitor.Exit(obj);
				}
			}
		}
		return defaultInstance;
	}
}

[siegfriedpammer]

Can you please provide the binary? This looks like the original code was VB.NET...

[CreateAndInject]

Can you please provide the binary? This looks like the original code was VB.NET...

vb.zip
@siegfriedpammer Yes, it's VB.NET

[CreateAndInject]

@siegfriedpammer A method with attributes should not be decompiled as lambda if current language setting doesn't support lambda with attributes.