c# - Can i combine two or more different events for one method? -

i'm using filesystemwatcher.

it's easy when combining events same type, here (filesystemeventargs), , saw passing parameters event handler, passing event event method, don't know how.

before, want this:

private void systemwatch(object sender,                           system.io.renamedeventargs e,                           system.io.filesystemeventargs f) 

but can't change filesystemeventhandler or renamedeventhandler delegate, there alternative way ?

delegates, found in events, define method signature expected called. such, events differing signatures cannot implicitly call method differing signature.

one potential workaround might use dynamic lambda method perform translation:

watcher.created += (s, a) => systemwatch(s, null, a); watcher.renamed += (s, a) => systemwatch(s, a, null);  

edit:

after further consideration, mcgarnagle stated, renamedeventsargs inherits filesystemeventargs. should able handle both scenarios using single event handler:

private static void oncreatedorrenamed(object source, filesystemeventargs e) 

you can tell operation checking type of e:

if (e renamedeventargs)     ... else     ...