private void UserControl_Loaded(object sender, RoutedEventArgs e)
{
var labelWidth = Control_Label.ActualWidth;
if (labelWidth <= ActualWidth)
{
var space = ActualWidth - labelWidth;
Dispatcher.Invoke(() =>
{
Control_Label.SetValue(Canvas.LeftProperty, space / 2d);
});
}
}
private void Worker_DoWork(object sender, DoWorkEventArgs e)
{
while (!_worker.CancellationPending)
{
if ((DateTime.Now - _beginAutoScroll).TotalMilliseconds < 1000)
{
Thread.Sleep(10);
continue;
}
Dispatcher.Invoke(() =>
{
if ((DateTime.Now - _reachedDefaultPosition).TotalMilliseconds < 2000)
{
return;
}
var labelWidth = Control_Label.ActualWidth;
double left = (double)Control_Label.GetValue(Canvas.LeftProperty);
if (left < -labelWidth)
{
left = ActualWidth + 0.5;
}
Control_Label.SetValue(Canvas.LeftProperty, left - 0.5);
if (left - 0.5 == 0.0)
{
_reachedDefaultPosition = DateTime.Now;
}
});
Thread.Sleep(10);
}
Dispatcher.Invoke(() =>
{
Control_Label.SetValue(Canvas.LeftProperty, 0d);
});
}
