Canceling FileCopy operation on cancel button click

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My application have thread which get started on start button click and do file copy operation.
OnCancel button click causes thread to stop the processing and delete copied file.
how Can I achieve this?

Posted 17-May-15 22:41pm

Sarita S

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2 solutions

Solution 1

You can rewrite your code with little logic:

Read the file in small chunks and write it out to the destination. Periodically check whether you've been asked to cancel and if you detect that, stop writing and close the files.

Posted 17-May-15 23:04pm

Ganesan Senthilvel

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Ganesan Senthilvel · Accepted Answer · 2015-05-17T23:05:00

Solution 2

For the above logic, the code sample is attached here:

C#

void CopyStream(Stream inputStream, Stream outputStream)
{
    var buffer = new byte[1024];

    int bytesRead;
    while((bytesRead = inputStream.Read(buffer, 0, buffer.Length)) > 0)
    {
        outputStream.Write(buffer, 0, bytesRead);
        if(cancelled){
           // cleanup

           return;
        }
    }
}

Posted 17-May-15 23:05pm

Ganesan Senthilvel

Comments

VICK 18-May-15 5:15am

It would be nice and better to Edit your first solution and update with what you have added in Solution 2.. rather than posting multiple solution.s :)