Log a function call easily w/ log4net. Shouldn't have performance impact if not set to log. Uses [CallerMemberName] so you don't have to supply it. Usage: logger.InfoCall(()=>new { param1, param2, param3})

gistfile1.txt

public static class LogExtensions
{
    public static void InfoCall(this ILog log, Func<object> args = null, [CallerMemberName] string name = "")
    {
        if (log.IsInfoEnabled)
            log.Info(new Message(name, (args != null) ? args() : null));
    }

    public static void DebugCall(this ILog log, Func<object> args = null, [CallerMemberName] string name = "")
    {
        if (log.IsDebugEnabled)
            log.Debug(new Message(name, (args != null) ? args() : null));
    }

    private class Message
    {
        private readonly object _args;
        private readonly string _name;

        public Message(string name, object args)
        {
            _name = name;
            _args = args;
        }

        public override string ToString()
        {
            var sb = new StringBuilder("Call");
            sb.AppendFormat(" {0}(", _name);
            if (_args != null)
            {
                bool addComma = false;
                foreach (PropertyDescriptor a in TypeDescriptor.GetProperties(_args))
                {
                    sb.AppendFormat(addComma ? ", {0}: '{1}'" : "{0}: '{1}'", a.Name, a.GetValue(_args));
                    addComma = true;
                }
            }
            sb.Append(")");
            return sb.ToString();
        }
    }
}