播放聲音在C＃中按下按鈕

Question

我試圖從一個按鈕的事件處理程序播放聲音：

using System; 
using System.Collections.Generic; 
using System.IO; 
using System.Linq; 
using System.Runtime.InteropServices.WindowsRuntime; 
using Windows.Foundation; 
using Windows.Foundation.Collections; 
using Windows.UI.Xaml; 
using Windows.UI.Xaml.Controls; 
using Windows.UI.Xaml.Controls.Primitives; 
using Windows.UI.Xaml.Data; 
using Windows.UI.Xaml.Input; 
using Windows.UI.Xaml.Media; 
using Windows.UI.Xaml.Navigation; 

// The Blank Page item template is documented at https://go.microsoft.com/fwlink/?LinkId=402352&clcid=0x409 

namespace App1 
{ 
    /// <summary> 
    /// An empty page that can be used on its own or navigated to within a Frame. 
    /// </summary> 
    public sealed partial class MainPage : Page 
    { 
     public MainPage() 
     { 
      this.InitializeComponent(); 
     } 

     private void mainButton_Click_1(object sender, RoutedEventArgs e) 
     { 
      System.Media.SoundPlayer player = new System.Media.SoundPlayer(@"c:\mywavfile.wav"); 
      player.Play(); 
     } 
    } 
} 

但我發現了其中的類型或命名空間「媒體」不存在的錯誤命名空間「系統」。什麼似乎是問題？

我正在使用visual studio 2017，並創建了一個通用的windows c＃空白應用程序。

編輯：

我已經改變了我的代碼這一點，但我仍然沒有得到任何音頻播放。

using System; 
using System.Collections.Generic; 
using System.IO; 
using System.Linq; 
using System.Runtime.InteropServices.WindowsRuntime; 
using Windows.Foundation; 
using Windows.Foundation.Collections; 
using Windows.UI.Xaml; 
using Windows.UI.Xaml.Controls; 
using Windows.UI.Xaml.Controls.Primitives; 
using Windows.UI.Xaml.Data; 
using Windows.UI.Xaml.Input; 
using Windows.UI.Xaml.Media; 
using Windows.UI.Xaml.Navigation; 

// The Blank Page item template is documented at https://go.microsoft.com/fwlink/?LinkId=402352&clcid=0x409 

namespace App1 
{ 
    /// <summary> 
    /// An empty page that can be used on its own or navigated to within a Frame. 
    /// </summary> 
    public sealed partial class MainPage : Page 
    { 
     public MainPage() 
     { 
      this.InitializeComponent(); 
     } 

     private void mainButton_Click_1(object sender, RoutedEventArgs e) 
     { 
      MediaElement PlayMusic = new MediaElement(); 
      PlayMusic.AudioCategory = Windows.UI.Xaml.Media.AudioCategory.Media; 
      PlayMusic.Source = new Uri(@"D:/Downloads/sounds.mp3"); 
      PlayMusic.Play(); 
     } 
    } 
} 

我已經嘗試添加一個背景聲明壽允許背景音頻，但仍然無濟於事。

Answer 1

您正在使用.Net Core和System.Media在.Net Framework中。

在.Net Core中，您可以使用Windows.UI.Xaml.Controls.MediaElement。或者，您可以使用Windows.Media.Audio.AudioGraph。