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POVB.net stopping a backgroundworker
 

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    <p>I want to create a button that could stop my background worker and end all the process it is working on.</p> <p>Here is my sample backgroundworker code:</p> <pre><code> Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click Try If BackgroundWorker1.IsBusy &lt;&gt; True Then BackgroundWorker1.RunWorkerAsync() End If Catch ex As Exception End Try End Sub Private Sub BackgroundWorker1_DoWork(sender As System.Object, e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork Dim counter As Integer = 1 Do 'updated code with stop function---------------- BackgroundWorker1.WorkerSupportsCancellation = True If BackgroundWorker1.CancellationPending Then e.Cancel = True ProgressBar1.Value = 0 Exit Do End If 'updated code with stop function---------------- ListBox1.Items.Add(counter) ProgressBar1.Value = ((counter - 1) / limit) * 100 counter = counter + 1 Loop While(counter &lt;= 999999999999999999) End Sub Private Sub BackgroundWorker1_ProgressChanged(sender As System.Object, e As System.ComponentModel.ProgressChangedEventArgs) Handles BackgroundWorker1.ProgressChanged Try Catch ex As Exception End Try End Sub Private Sub BackgroundWorker1_Completed(sender As System.Object, e As System.ComponentModel.RunWorkerCompletedEventArgs) Handles BackgroundWorker1.RunWorkerCompleted Try Catch ex As Exception End Try End Sub Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load System.Windows.Forms.Control.CheckForIllegalCrossThreadCalls = False End Sub 'updated code with stop function---------------- Private Sub StopButton_Click(sender As Object, e As EventArgs) Handles StopButton.Click If BackgroundWorker1.IsBusy Then If BackgroundWorker1.WorkerSupportsCancellation Then BackgroundWorker1.CancelAsync() End If End If End Sub 'updated code with stop function---------------- </code></pre> <p>I want to reset the loop and return the Progress Bar to 0% when i stop the backgroundworker.</p> <p>Is this possible?</p> <hr> <p>The code above has been updated and it is now working fine. </p> <p>I have added this code inside my do loop:</p> <pre><code> BackgroundWorker1.WorkerSupportsCancellation = True If BackgroundWorker1.CancellationPending Then e.Cancel = True ProgressBar1.Value = 0 Exit Do End If </code></pre> <p>I created a button that stops the worker:</p> <pre><code> Private Sub StopButton_Click(sender As Object, e As EventArgs) Handles StopButton.Click If BackgroundWorker1.IsBusy Then If BackgroundWorker1.WorkerSupportsCancellation Then BackgroundWorker1.CancelAsync() End If End If End Sub </code></pre>
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