NDLRLOG002: Method must return void¶
Cause¶
A method marked with [NeedlrLoggerMessage] returns something other than void.
Rule Description¶
A logging method records an event; it has no result to return. Like the built-in [LoggerMessage],
[NeedlrLoggerMessage] only supports methods that return void.
How to Fix¶
public partial class OrderService
{
private readonly ILogger _logger;
// WRONG: returns a value
[NeedlrLoggerMessage(Level = LogLevel.Warning, Message = "Failed {OrderId}")]
public partial bool LogFailedWrong(int orderId, Exception error);
// CORRECT
[NeedlrLoggerMessage(Level = LogLevel.Warning, Message = "Failed {OrderId}")]
public partial void LogFailed(int orderId, Exception error);
}