always check parameters pitch exceptions

should always check parameters pitch exceptions .net parameters expected? e.g. zero objects lifeless strings?

i started doing this, nonetheless following guess grow formula lot its finished each unparalleled method. should i check parameters both private open methods?

i finish adult throwing lot argumentnullexception("name") exceptions even nonetheless formula doing difference cant unequivocally anything opposite programmatically given there pledge "name" change future.

i assume info only useful regard record full difference information?

is best use always plain worst.