没有扩展名的MediaPlayer无法播放文件名 [英] MediaPlayer cannot play file names without an extension

问题描述

当我尝试播放的本地文件有没有文件扩展名 System.Windows.Controls.MediaElement 组件失败，并出现FileNotFoundException说< STRONG>媒体文件下载失败。：空。内部异常是 System.Runtime.InteropServices.COMException 与HResult的0xC00D0FEA。

When I try to play a local file having no file extension the component System.Windows.Controls.MediaElement fails with a FileNotFoundException saying "Media file download failed.":null. The inner exception is a System.Runtime.InteropServices.COMException with HResult 0xC00D0FEA.

我想我分配到 MediaPlayer.Source 与 WebClient.DownloadData的URI（URI）并没有问题既不的URI也不返回的数据。

I tried the Uri I assigned to MediaPlayer.Source with WebClient.DownloadData(Uri) and there were no problems with neither the uri nor the returned data.

更新： 当我第一次集中在为什么新的URI（@C：\ TEMP \文件名。）刚刚成为文件：/// C：/ TEMP /文件名后，终于重命名文件filename.data仍是同样的异常被抛出（吞咽尾随点）。我认为WPF - 这是使用媒体基金会，这是最新的技术 - 使用的，而不是只是解析文件中的数据文件扩展名。 facepalm 的

Update: While I first concentrated on why new Uri(@"c:\temp\filename.") just becomes file:///c:/temp/filename (swallowing the trailing dot) after finally renaming the file to "filename.data" still the very same exception is thrown. I assume that WPF -- which is using Media Foundation, which is newest technology -- uses file name extensions instead of just parsing file data. facepalm

推荐答案

要解决这个问题是很容易
1 - 获取的文件夹路径
2 - 使用IO.Directory.GetFiles（字符串路径）功能
3 - 遍历列表，并获得相匹配乌尔文件名
的第一个文件 4 - 它传递给玩家
它应该是这个样子。

to solve this is easy
1 - get the folder path
2 - use the IO.Directory.GetFiles(string path) function
3 - loop through the list and get the first file that matches ur file name
4 - pass it to the player
it should look something like this

dynamic x = IO.Directory.GetFiles("ur folder path here").ToList;
dynamic fullnamewithext = x.Find(z => IO.Path.GetFileNameWithoutExtension(z) == "ur file name here");

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