BackgroundWorker
BackgroundWorker Class
Executes an operation on a separate thread.
Sample Code
1.Create event DoWork.
Private Sub BackgroundWorker1_DoWork(ByVal sender As Object, ByVal e As DoWorkEventArgs)'Sample how to disable button send before send email method after that enabled button.
DisableSendButton()
' to do SendEmail method
EnabledSendButton()
End Sub
2. Show how to invoke method when use BackgroundWorker control.
Private Sub DisableSendButton()
If Me.InvokeRequired Then
Me.Invoke(New MethodInvoker(DisableSendButton))
Else
btnSend.Enabled = False
btnCancelSend.Visible = True
End If
End Sub
Private Sub EnabledSendButton()
If Me.InvokeRequired Then
Me.Invoke(New MethodInvoker(EnabledSendButton))Else
btnSend.Enabled = True
btnCancelSend.Visible = False
End If
End Sub
3.Start BackgroundWorker
BackgroundWorker1.RunWorkerAsync()
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