Setting Timeout in vb.net

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Hi, i am in the middle of something and i need to set some timeout to abort a thread in the timeout. What i need is a way i can set a timeout with a callback function or sub that will be called when the specified time of the timeout elapse.

Here is a sample code to make things more clearer

VB

'here, i need to set a callback function that will be called when the time elapse.
Private Sub callbk()
    'code here will be executed when the time elapse
    Threading.Thread.Abort()
End Sub

 
Private Sub btn_start(ByVal sender As Object, ByVal e As System.EventArgs) Handles btn_start.Click
'setup a timeout here to call the sub callbk when the time elapse.
'for example, something like this
    myTimeout(5000, AddressOf callbk)
'the first argument is the time interval in milliseconds while the second argument is the function to callback after the period of 5 seconds
    While True
        'do some coding here that can never stop
        'so when the timeout elapse, the thread is aborted
        'by the callback function
    End While
End Sub

so, i need help!

Posted 15-Jan-13 4:52am

Joeadeoye

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Comments

Sergey Alexandrovich Kryukov 15-Jan-13 11:08am

Weird, but, in principle, you can do such thing. (Needs a lot of care, can be very dangerous technique...) The problem is how you use the timer. What is "myTimeout"? You don't show its definition. You can use System.Timers.Timer...
—SA

Joeadeoye 15-Jan-13 11:34am

i just used the myTimeout as an example....

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Joeadeoye · Accepted Answer · 2013-01-15T05:37:00

I finally got the solution from msdn after series of research work. Here is the solution in case it might help other people:

VB

'here, i need to set a callback function that will be called when the time elapse.
Private Sub callbk()
    'code here will be executed when the time elapse
    Threading.Thread.Abort()
End Sub
 
 
Private Sub btn_start(ByVal sender As Object, ByVal e As System.EventArgs) Handles btn_start.Click
'setup a timeout here to call the sub callbk when the time elapse.
'for example, something like this
    Dim tcb As TimerCallback = AddressOf callbk
    Dim t As Timer = New Timer(tcb, Nothing, 5000, -1)
'the first argument is the time interval in milliseconds while the second argument is the function to callback after the period of 5 seconds
    While True
        'do some coding here that can never stop
        'so when the timeout elapse, the thread is aborted
        'by the callback function
    End While
End Sub

thanks!