Winjs, error reading file with FileIO.readTextAsync

Question

I am reading a .json file from disk using Windows.Storage.FileIO.readTextAsync. All is fine until I put some non english letters in the file, like Æ Å Ø

The error I get is (rough translation from Danish language): WinRT: No mapping for the Unicode character exists in the target multi-byte code page.

any idea how to read those chars in WinJs?

Answer 1

I found the problem.

when I created the file manually with notepad I set it to type ANSII instead of utf8. I reopened the file -> save as and the changed the type and overwrote it.

Answer 2

You may be able to solve this by changing the encoding from the default (Utf8) to Utf16. The readTextAsync method accepts a second parameter which is a UnicodeEncoding flag:

Windows.Storage.FileIO.readTextAsync(
    file,
    Windows.Storage.Streams.UnicodeEncoding.utf16LE
).done( ... );

Or if you need to, you can use utf16BE flag (see link above).