音量滑块C＃Windows Phone 7.1

Question

I have some problem with a slider volume in my windows phone app 7.1

this is the XAML

<Slider Name="volumeSlider" VerticalAlignment="Center" ValueChanged="ChangeMediaVolume" Minimum="0" Maximum="1" Value="0.5" Margin="0,146,0,-27"/>

and this the simply function ChangeMediaVolume

private void ChangeMediaVolume(object sender, RoutedPropertyChangedEventArgs<double> args)
{
   AudioPlayer.Volume = (double)volumeSlider.Value;
}

If I don't have this lines all it's ok... but when they are in the code the debugger show an error.

A first chance exception of type 'System.Windows.Markup.XamlParseException' occurred in System.Windows.ni.dll

If there is a handler for this exception, the program may be safely continued.

Answer 1

Probably this is what's wrong with it. Try changing the line

<Slider Name="volumeSlider" ...

to

<Slider x:Name="volumeSlider" ...