Загрузка данных

 <StackPanel Margin="20" VerticalAlignment="Center">
        <RadioButton x:Name="rbDa"  Content="Да"  GroupName="YesNo" IsChecked="True" Margin="0,5"/>
        <RadioButton x:Name="rbNet" Content="Нет" GroupName="YesNo" Margin="0,5"/>
        <Button Content="Нет" Width="100" Margin="0,15,0,0" Click="BtnNet_Click"/>
    </StackPanel>