我有一个SharePoint文档库，其中包含Power Apps中使用的视频，并希望通过该应用程序揭示这些视频的持续时间。当视频首次上传时，我有什么办法可以直接通过Power Apps通过Power Automate Flow来获得视频的该属性？谢谢。
编辑：使用Power Automate，我已经尝试使用GET文件属性，获取文件元数据并获取文件内容操作（通过SharePoint Connector），但是他们的响应都不包括视频持续时间。但是，如果我在文档库中手动浏览视频的“详细信息”，则在此处列出了视频持续时间，这表明它应该有可能。
I have a SharePoint Document Library containing videos being used in Power Apps, and would like to expose the duration of those videos through the app. Is there any way for me to get that property of the videos, either through Power Apps directly or upstream via a Power Automate flow when the video is first uploaded? Thanks.
Edit: using Power Automate, I've already tried using the Get file properties, Get file metadata, and Get file content actions (via the SharePoint connector), but none of their responses include the video duration. Yet if I manually browse to the "Details" of a video in my Document Library, then the video duration is listed right there, suggesting that it should be possible.
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长度（秒）列默认不存在典型lists中。我能够通过选择资产库来找到它。通过选择
视图然后所有资产我可以在列表中看到它。这不是对我来说，我必须自己添加一个价值。使用
SharePoint获取文件属性操作我能够得到它。注意：
长度列不是动作的 body 的一部分，但如下所示，它可作为动态内容可用：结果：
希望这会有所帮助
The
Length (seconds)column doesn't exist by default in typicalLists. I was able to find it by selecting anAssets Library.By selecting
ViewsthenAll assetsI can see it in the list. It was not pre-populated for me, I had to add a value myself.Using the
Sharepoint Get File PropertiesAction I was able to get it.Note:
Lengthcolumn is not part of the body of the action, but it is available as Dynamic Content as shown here:Result:
Hope this helps