private void _transferLimitTypeComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
_transferLimitSpanTextBox.IsEnabled = (TransferLimitType)_transferLimitTypeComboBox.SelectedItem != TransferLimitType.None;
_transferLimitSizeTextBox.IsEnabled = (TransferLimitType)_transferLimitTypeComboBox.SelectedItem != TransferLimitType.None;
_transferLimitSizeComboBox.IsEnabled = (TransferLimitType)_transferLimitTypeComboBox.SelectedItem != TransferLimitType.None;
}