asp.net elmah: how to display own error message instead of 'Specified method is not supported' -


i trying display "hello testing elmah" in error column of elmah errorlog. got in asp.net app:

var customex = new exception("hello testing elmah", new notsupportedexception()); elmah.errorsignal.fromcurrentcontext().raise(customex);

at moment comes specified method not supported. how can change this?


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