gistfile1.txt

void Main()
{
	FormatUsingSerilog("{Message} {Number}", "Foo", 2).Dump(); // Outputs: "Foo" 2
	FormatUsingSerilog("{@Foo}", new { Property = 2 }).Dump(); // Outputs: { Property = 2 }
	FormatUsingSerilog("{@Foo}", new Foo { Property = 2 }).Dump(); // Outputs: UserQuery+Foo
}

static string FormatUsingSerilog(string format, params object[] args) {
	var parser = new MessageTemplateParser();
	var template = parser.Parse(format);
	var propertyTokens = template.Tokens.OfType<PropertyToken>().ToArray();
	var properties = new Dictionary<string, LogEventPropertyValue>();
	
	if(propertyTokens.Length != args.Length)
		throw new FormatException("Invalid number or arguments provided.");
		
	for(var i = 0; i < propertyTokens.Length; i++) {
		var arg = args[i];
		
		properties.Add(propertyTokens[i].PropertyName, new ScalarValue(arg));
	}
	
	return template.Render(properties);
}

class Foo {
	public int Property { get; set; }
}