Getting a reference to the actual background worker

  • Thread starter Thread starter Jerry Spence1
  • Start date Start date
J

Jerry Spence1

I define a Background Worker as follows:

Dim MyWorker(10) As System.ComponentModel.BackgroundWorker

For n=1 to 10
MyWorker(n)= New System.ComponentModel.BackgroundWorker
AddHandler MyWorker (n).DoWork, AddressOf MyWorker_DoWork
AddHandler MyWorker (n).RunWorkerCompleted, AddressOf MyWorker_AllDone
Next

I launch the worker as follows with a parameter 'n'

If Myworker(n).IsBusy = False Then
MyWorker(n).RunWorkerAsync(n)
End If

When the thread ends, I want to get a reference to the actual thread that
has ended. This will be the parameter 'n'. I can get a reference to the
thread itself but I can't see a way of getting to 'n'


Sub MyWorker_AllDone(ByVal sender As Object, ByVal e As
System.ComponentModel.RunWorkerCompletedEventArgs)
Dim c As System.ComponentModel.BackgroundWorker =
DirectCast(sender, System.ComponentModel.BackgroundWorker)


'What can I put here?

End Sub

-Jerry
 
Jerry Spence1 said:
Sub MyWorker_AllDone(ByVal sender As Object, ByVal e As
System.ComponentModel.RunWorkerCompletedEventArgs)
Dim c As System.ComponentModel.BackgroundWorker =
DirectCast(sender, System.ComponentModel.BackgroundWorker)


'What can I put here?

End Sub
Click to expand...


Index = Array.IndexOf(MyWorker, sender)


Armin
 
Jerry said:
Dim MyWorker(10) As System.ComponentModel.BackgroundWorker
For n=1 to 10
MyWorker(n)= New System.ComponentModel.BackgroundWorker
AddHandler MyWorker (n).DoWork, AddressOf MyWorker_DoWork
AddHandler MyWorker (n).RunWorkerCompleted, AddressOf MyWorker_AllDone
Next

I launch the worker as follows with a parameter 'n'

If Myworker(n).IsBusy = False Then
MyWorker(n).RunWorkerAsync(n)
End If

When the thread ends, I want to get a reference to the actual thread that
has ended. This will be the parameter 'n'. I can get a reference to the
thread itself but I can't see a way of getting to 'n'
Click to expand...

I've not used the BackgroundWorker yet, but if it's anything like the
other asynchronous methods, your 'n' should be taken as "state" data
which, /if/ I read MSDN right, you should be able to get hold of through
e.UserState.

HTH,
Phill W.
 
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