public static void ExecuteWithSpinner(Action work, string message)
{
SpinnerDialog spinnerDialog = null;
DispatcherHelper.CheckBeginInvokeOnUI(() =>
{
spinnerDialog = new SpinnerDialog();
spinnerDialog.txtMessage.Text = message;
spinnerDialog.Show();
});
var doneEvent = new AutoResetEvent(false);
BackgroundWorker worker = new BackgroundWorker();
worker.DoWork += (sender, args) =>
{
try
{
work();
}
finally
{
doneEvent.Set();
}
};
worker.RunWorkerCompleted += (sender, args) =>
{
DispatcherHelper.CheckBeginInvokeOnUI(() =>
{
doneEvent.WaitOne();
spinnerDialog.Close();
});
};
worker.RunWorkerAsync();
}
private SpinnerDialog DisplaySpinner(Window window)
{
// Close any open dialogs.
DialogHost.CloseDialogCommand.Execute(new object(), null);
// Create a new spinner instance and show it on the specifed window.
var spinner = new SpinnerDialog();
DialogHostEx.ShowDialog(window, spinner, spinner.DialogHost_DialogOpened);
return(spinner);
}
private async Task LoadSpinner(Window window, string initialStatus)
{
// Async wait handle to delay showing the spinner if desired.
await Task.Run(() => delayShowWaitHandle.WaitOne(showDelayMS));
// If the wait handle has been set, then the spinner has been
// disposed before the delay period has elapsed, so we will
// not attempt to display the spinner.
if (delayShowWaitHandle.WaitOne(0))
{
return;
}
if (!string.IsNullOrEmpty(currentStatus) && currentStatus != initialStatus)
{
initialStatus = currentStatus;
}
spinner = DisplaySpinner(window);
spinner.StatusText = initialStatus;
}
