How do I know when a copy job is done?

Question

I'm using

File.Copy(source, dest);

I need to know when this copy job is done processing so that it can move on to another task.

Is there any callback function I could use in this particular case?

possible duplicate of [How do I delay a vb.net program until a file operation completes?](http://stackoverflow.com/questions/437396/how-do-i-delay-a-vb-net-program-until-a-file-operation-completes) — John Boker, Nov 30 '10 at 20:22

score 6 · Answer 1 · answered Nov 30 '10 at 20:21

6

File.Copy is not asynchronous. It has completed when the call finishes.

answered Nov 30 '10 at 20:21

Moo-Juice

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Rohan West · Answer 2 · 2010-11-30T22:59:39.750

2

File.Copy is blocking so execution should wait until the operation has complete.

edited Nov 30 '10 at 22:59

answered Nov 30 '10 at 20:23

Rohan West

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score 1 · Answer 3 · answered Nov 30 '10 at 20:21

1

Isn't File.Copy a blocking method? It should wait on that line until the copy of the file is complete then continue execution.

answered Nov 30 '10 at 20:21

John Boker

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score 0 · Answer 4 · answered Nov 30 '10 at 20:31

Here is some code to do what you need...cause I'm awesome that way :-)

dim FileCopyDelegate as new Delegate = addressof File.Copy

dim oListOfParams as new List(of string)

oListOfParams.add(source)
oListOfParams.add(destination)

FileCopyDelegate.begininvoke(oListOfParams, addressof CallBackMethod) 'creates an async thread to do the file copy

How do I know when a copy job is done?

4 Answers4