windows phone 首页中的按返回键提示退出对话框

 

 

 

<phone:PhoneApplicationPage 

    ........
    BackKeyPress="PhoneApplicationPage_BackKeyPress"
    ........
>

 

 

        private void PhoneApplicationPage_BackKeyPress(object sender, System.ComponentModel.CancelEventArgs e)
        {
            e.Cancel = true;
            if (MessageBox.Show("是否退出", "提示", MessageBoxButton.OKCancel) == MessageBoxResult.OK)
            {
                new Microsoft.Xna.Framework.Game().Exit(); 
            }
        }