vb.net - pass parameter from loop value to dynamic function -

i making loop make array of timers , give each timer function

here's did:

dim timer(10) timer = 0 5 timer(i) = new timer addhandler timer(i).tick, function(senderx, ex) timerfunction(i) next 

i have function:

private function timerfunction(byval timerno integer)     msgbox(timerno) end function 

but getting 6 value of timerno every timer call this:

timer(3).start() 

i outputs 6 in change parameter number 1 5

why diong that?

you have "closed on loop variable". value of timerno evaluated @ time function called after loop has completed, value of timerno 6.

you should have got compiler warning: "bc42324 using iteration variable in lambda expression may have unexpected results. instead, create local variable within loop , assign value of iteration variable."

to example...

dim timer(10) timer integer = 0 5   dim j integer =   timer(i) = new timer   timer(i).interval = 1000   timer(i).enabled = true   addhandler timer(i).tick, function(senderx, ex) timerfunction(j) next  function timerfunction(timerno integer) string   msgbox(timerno)   return timerno.tostring end function 

this way, new instance of j created each iteration of loop.