2
我用下面的代碼操縱事件backpressed,但它不工作事件backpressed WP 8.1
private void HardwareButtons_BackPressed(object sender, BackPressedEventArgs e)
{
Frame frame = Window.Current.Content as Frame;
if (frame == null)
{
return;
}
if (frame.CanGoBack)
{
frame.GoBack();
e.Handled = true;
}
它返回此錯誤:
Error 1 The type or namespace name 'BackPressedEventArgs' could not be found (are you missing a using directive or an assembly reference?)
誰能幫助我,或點我在正確的方向?