c# - Force my code to use my extension method -

i'm using bitfactory logging, exposes bunch of methods this:

public void logwarning(object acategory, object anobject) 

i've got extension method makes bit nicer our logging needs:

public static void logwarning(this compositelogger logger,        string message = "", params object[] parameters) 

which wraps common logging operations, , means can log like:

logging.logwarning("something bad happened {0}. id {1}",foo,bar);

but when have 1 string in params object[], extension method won't called, instead original method chosen.

apart naming method else, there way can stop happening?

the rules how overloaded methods resolved 1 (or error) complex (the c# specification included visual studio gory details).

but there 1 simple rule: extension methods considered if there no possible member can called.

because signature of 2 objects accept 2 parameters, call 2 parameters match member. no extension methods considered possibilities.

you pass third parameter (eg. string.empty) , not use in format.

or, , suspect better, avoid possible interactions additions library (variable length argument list methods prone this) rename logwarningformat (akin naming of stringbuffer.appendformat).

ps. there no point having default message parameter: never used unless pass no arguments: log nothing.