how to close a backgroundworker from a button click event?

Question

I have written a C# program to call a function through backgndWorkerEnroll_DoWork. It will start from a for shown event.

On the other side I have a button click event. When that event occurs I call a function and it it returns success, I want to close the backgroundworker.

How can I achieve this?

My code below.

private void PwdCheck_Shown(object sender, EventArgs e)
{
    backgroundWorker1.RunWorkerAsync();
}

private void btnEnter_Click(object sender, EventArgs e)
{ 
    resPwdValid = PwdValid();
    if (resPwdValid == true)
    {
         //backgroundWorker1.CancelAsync();
         this.Close();
    }
}

private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{               
    tstVerify:
        resVerify = testVerfy();
        if (resVerify == true)
        {
           // MessageBox.Show("Matched");
        }
        else
        {
           MessageBox.Show("Not Matched");
           goto tstVerify;
        }
}

private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
    if (resVerify == true)
    {
        this.Close();
    }
}

How can I close the backgroundrunner after my btnenter_click respwdvalid returns true?

Check the example here http://msdn.microsoft.com/en-us/library/system.componentmodel.backgroundworker.aspx it illustrates exact what you needed — Denis Palnitsky, Mar 19 '13 at 14:29
@Siva - please make an effort to format your questions properly!! — Mike Dinescu, Mar 19 '13 at 14:32

score 0 · Answer 1 · edited Nov 23 '16 at 09:41

0

Make use of the Cancellation Property

edited Nov 23 '16 at 09:41

Mong Zhu

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answered Mar 19 '13 at 14:26

Chris Moutray

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score 0 · Answer 2 · edited Nov 23 '16 at 09:40

0

You would call BackgroundWorker.CancelAsync() I believe (you seem to have commented it out) and then in your DoWork code you should keep checking BackgroundWorker1.CancellationPending and exit your background thread early.

edited Nov 23 '16 at 09:40

Mong Zhu

23,309
10
44
76

answered Mar 19 '13 at 14:26

Ian

160
2
9

how to close a backgroundworker from a button click event?

2 Answers2