Read a text file from shared folder in UWP. Access denied exception

Question

The below code throws access denied exception.

var filename = @"\\MYTSP00491\TestApp\VersionDetails.txt";
var file = await StorageFile.GetFileFromPathAsync(filename);
var inputStream = await file.OpenSequentialReadAsync();

string fileContents;
using (var streamReader = new StreamReader(inputStream.AsStreamForRead()))
{
    fileContents = await streamReader.ReadToEndAsync();
}

Answer 1

It looks like your use case here is to read a file from a UNC path. To do so your app will need capabilities appropriate for the network and a File Type Association for the types you need. See the table in the File access permissions Accessing additional locations documentation:

Universal Naming Convention (UNC) folders

A combination of the following capabilities is needed.

The home and work networks capability: - PrivateNetworkClientServer

And at least one internet and public networks capability: - InternetClient - InternetClientServer

And, if applicable, the domain credentials capability: - EnterpriseAuthentication

Note: You must add File Type Associations to your app manifest that declare specific file types that your app can access in this location.

Retrieve a folder using: StorageFolder.GetFolderFromPathAsync

Retrieve a file using: StorageFile.GetFileFromPathAsync