public void HistoryButton_Click()
{
if (_displayHistory == false)
{
CarPoints.Opacity = .5;
_hvm.EnableHistory = true;
_hvm.LoadData();
_hvm.PropertyChanged += _hvm_PropertyChanged;
_hvm.CenterUpdates += _hvm_CenterUpdates;
//grdHistoryWork.Visibility = Visibility.Visible;
}
else
{
CarPoints.Opacity = 1;
_hvm.EnableHistory = false;
_hvm.PropertyChanged -= _hvm_PropertyChanged;
_hvm.CenterUpdates -= _hvm_CenterUpdates;
//grdHistoryWork.Visibility = Visibility.Collapsed;
}
_displayHistory = !_displayHistory;
CarPin.Visibility = ParkingsPin.Visibility =
//RouteLine.Visibility = WarningLine.Visibility = ErrorLine.Visibility = OfflineLine.Visibility =
_carZonesError.Visibility = _displayHistory ? Visibility.Visible : Visibility.Collapsed;
}