使用MediaPlayer无法在VB.NET中播放MP3文件 [英] Trouble playing MP3 files in VB.NET with MediaPlayer

问题描述

我正在尝试播放MP3文件按钮单击事件。我有一个名为introduction.mp3的MP3文件，我已将其作为现有文件添加到我的项目中，并且我已经设置了它的属性



构建操作 - 内容

复制到输出目录 - 总是复制。



我的按钮点击事件中有以下代码，

Hi,

I am trying to play an MP3 file on a button click event. I hav ethe MP3 file named "introduction.mp3" which I have added as an existing file to my project, and I have set it's properties

Build Action - Content
Copy to Output Directory - Copy Always.

I then have the following code in my button click event,

mPlayer.Open(New Uri("Introduction.mp3", UriKind.Relative))
MessageBox.Show("The audio should be playing", "Playing", MessageBoxButton.OK)
mPlayer.Play()

mPlayer是我的MediaPlayer对象已经宣布在班级的顶部，

mPlayer is a MediaPlayer object that I have declared at the top of the class,

Dim mPlayer As New MediaPlayer

我检查过文件已复制到输出目录并播放当在widnows媒体播放器中运行时。



当我点击按钮时文件无法播放，任何人都可以告诉我我错过了什么，消息框确实显示所以我知道事件正在解雇，但没有声音。



有没有人有任何想法我在网上搜索了几个小时，我似乎找到的只是这个代码的例子这对我不起作用。



任何帮助都会很棒



谢谢

I have checked that the file has copied to the output directory and plays when run in widnows media player.

When I click the button the files does not play, can anyone tell me what I am missing, the message box does show so I know the event is firing but there is no sound.

Does anyone have any ideas I have been searching online for hours and all I seem to find is examples of this code which does not work for me.

Any help would be great

Thanks

推荐答案

我很确定你没有正确形成你的URI。使用消息框显示URI位置，我敢打赌它不是你的应用程序目录。



你可以这样做：

I'm pretty sure you are not forming your URI correctly. Use the message box to show the URI location and I would bet that its not your application directory.

You could do something like this:

Dim fileUri as Uri = New Uri(Application.StartupPath + @"\Introduction.mp3", UriKind.Absolute)
mPlayer.Open()
MessageBox.Show("The audio should be playing " & fileUri.ToString(), "Playing", MessageBoxButton.OK)
mPlayer.Play()

（您可能需要调整，我不是VB程序员）



您还应该将Build操作设置为None而不是Content。

(You may need to tweak, I'm not a VB programmer)

You should also set your Build action to "None" instead of Content.

如果你记得导入它确实会有所帮助你需要的一切，我错过了

It really does help if you remember to import everything you need, I had missed

imports System.Media

MediaPlayer似乎没有出现这样的错误。

MediaPlayer does not seem to throw errors for things like this.

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