c# - is there any difference between return void and not return in a void function -

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here's situation: call void function in program, provide messagebox ok , cancel, function encapsulated. need know user click on.

so there anyway hijack function know user choice?

or think when programmer write function, must return void when user click cancel, , didn't return when user click ok. possible can differentiated these 2 actions - return void , not return anything?

i know seems impossible, why come stackoverflow asking guys.

thank you

a function returns void has 1 return - nothing - , there no difference between returning nothing or returning void.

if you're unable change existing function , display messagebox, i'd scrap , start again if you.

what want like:

public dialogresult getdialogresult(string message, string caption) {     return messagebox.show(message, caption, messageboxbuttons.okcancel); }

call message want , caption, , you'll return of either dialogresult.ok or dialogresult.cancel

if more display messagebox, option check change function makes if ok clicked, example:

  • if record added database if ok pressed, check record

  • if state of object changes, check change:

    otherobject.setvalueifok(2); if (otherobject.getvalue() == 2) {     // ok clicked } else {     // cancel clicked }

anything else , think you're out of luck.


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