问题
I was wondering if anyone would know how to get an Universal Windows app to read a txt file.
StreamReader lezer = new StreamReader(@"C:\Users\LotteDiesveld\Documents\Visual Studio 2015\Projects\Jaar 1\Periode 2\OIS 12\Eindopdracht\Personen.txt");
tbPersonen.Items.Add(lezer.ReadToEnd());
I've also tried this
StorageFile file = await StorageFile.GetFileFromApplicationUriAsync("ms-appx:///reserveringen.txt")
I know multiple answers have been given on this subject, but none work, because I keep getting an error. This error is either "Cannot convert type string to type uri" or "cannnot convert type string to type stream".
回答1:
A UWP app runs in a sandboxed environment and has no permissions to read a file from anywhere on the hard drive. If you want to read a file in the user's Documents Library you should either let the user select the file using a picker or declare the folder in the application's manifest. Please refer to Jerry Nixon's blog post for more information: http://blog.jerrynixon.com/2012/06/windows-8-how-to-read-files-in-winrt.html
Please also refer to the following similar question:
Windows 10 Universal App File/Directory Access
For information about how to read a file that is distributed along with your app, please see the answer here:
how to read a text file in windows universal app
来源：https://stackoverflow.com/questions/41557782/my-uwp-app-wont-read-a-txt-file