couldn't find path

Question

I'm getting this error when I try to open the file.The file path does exist i copied from the explorer to make sure there was no error in the path string.

System.IO.FileNotFoundException: Could not find file "/C:\Users\Mario\Documents\ativita\ativita\produtos_20180713.CSV"

List <banco_produtos> csv = File.ReadAllLines(Path.GetDirectoryName("C:\\Users\\Mario\\Documents\\ativita\\ativita\\produtos_20180713.CSV"))
                       .Skip(1)
                       .Select(c => c.Split(','))
                       .Select(x => new //there some code here 

                       })

if this is a Xamarin app, then it cannot read a file that is located on the desktop. It can only read files that are located in the file system of the device/emulator that they are running on. — Jason, Aug 02 '18 at 13:21
@mjwills If this is Xamarin the target may be a Unix-like system, in which case I can plausibly see `Path.GetDirectoryName` putting a `/` on the start of a Windows-style path. — Rawling, Aug 02 '18 at 13:26
@Jason and how I get the file path if I put inside the emulator? I can do the same as win"c:\\Users" but the path inside the emultator? — Mario, Aug 02 '18 at 13:40
You need to copy the file into your project at build time, or read it from a server at runtime. See https://learn.microsoft.com/en-us/xamarin/xamarin-forms/app-fundamentals/files?tabs=vswin — Jason, Aug 02 '18 at 13:47
Possible duplicates [stack overflow - xamarin.forms load file](https://www.google.com/search?q=xamarin.forms+load+file+site:stackoverflow.com) — Igor, Aug 02 '18 at 15:38
I have found the answer in this link: [https://stackoverflow.com/questions/48043058/xamarin-forms-read-from-text-file-result-is-null](https://stackoverflow.com/questions/48043058/xamarin-forms-read-from-text-file-result-is-null) — Mario, Aug 02 '18 at 16:47

Ashkan Mobayen Khiabani · Answer 1 · 2018-08-02T13:29:54.400

-1

First of all you have given the full path and you should remove Path.GetDirectoryName from your code:

   banco_produtos[] csv = File.ReadAllLines("C:\\Users\\Mario\\Documents\\ativita\\ativita\\produtos_20180713.CSV")
                           .Skip(1)
                           .Select(c => c.Split(','))
                           .Select(x => new //there some code here 

                           });

2- ReadAllLines(), returns an array not a list so either you have to use banco_produtos[] csv or use .ToList() to convert it to a List.

edited Aug 02 '18 at 13:29

answered Aug 02 '18 at 13:19

Ashkan Mobayen Khiabani

33,575
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I do use ".ToList()" at the end. – Mario Aug 02 '18 at 13:46
@Mario Great. I just wanted to make sure that code will work for you. Please upvote and mark as answer if it helped. – Ashkan Mobayen Khiabani Aug 02 '18 at 13:52
This makes no sense. The biggest problem in here is that the path points to a Windows system and we are talking about mobile here. This is never going to work like this. – Gerald Versluis Aug 02 '18 at 13:54
Well what I'm doing here is to show correct way of using `File.ReadAllLines()` – Ashkan Mobayen Khiabani Aug 02 '18 at 13:56

hmiedema9 · Answer 2 · 2018-08-02T16:25:11.210

-3

Seems like this is a problem with characters not being escaped. Try setting the path to a variable, then pass in the variable to your GetDirectoryName call.

Try:

var path = @"C:\Users\Mario\Documents\ativita\ativita\";


List <banco_produtos> csv = File.ReadAllLines(Path.GetDirectoryName(path))
                       .Skip(1)
                       .Select(c => c.Split(','))
                       .Select(x => new //there some code here 

                       })

edited Aug 02 '18 at 16:25

answered Aug 02 '18 at 13:21

hmiedema9

948
4
17

You can't read lines from a *file* if you pass the name of a *directory* in. `Path.GetDirectoryName` should be removed *entirely*. The OP did escape their path correctly. – Aug 02 '18 at 13:24
what I'm doing right now is using the comment from @jason and did this.Added the file to the project and embended to the resource and the code: `var assembly = IntrospectionExtensions.GetTypeInfo(typeof(novo_produto)).Assembly; Stream stream = assembly.GetManifestResourceStream("ativita.Class1.txt");` but now "stream" returns null. – Mario Aug 02 '18 at 14:53
Edited my comment to reflect a directory instead of a file. My mistake for not realizing OP was trying to read lines from a "file" using `Path.GetDirectoryName`. Was confused as to what OP was after. – hmiedema9 Aug 02 '18 at 16:26

couldn't find path

2 Answers2