Reading Selected file data in xamarin forms.UWP giving Access denied to path Exception

Question

I am trying to read data from selected file using below code. By using below able to read data from file in android and iOS but in UWP giving access denied exception.

Tried below link but didn't worked

https://www.jasongaylord.com/blog/2021/11/17/uwp-file-access-denied

var file = await FilePicker.PickAsync();
	if (file != null)
    {
        IList<string> currLine =File.ReadAllLines(file.FullPath);
        var count= currLine.Count;
    }

Answer 1

Hello,

You can open file by file.OpenReadAsync and read it by StreamReader .

I notice you want to read one line at a time and put all lines to a List. I use the following code to do it. You do not need update Application Capabilities

 var file = await FilePicker.PickAsync();
int counter = 0; string line;
IList<string> currLines = new List<string>();
if (file != null)
{
    using (var stream = await file.OpenReadAsync())

    {

        using (var reader = new StreamReader(stream))

        {

            // var AllContentFromFile = await reader.ReadToEndAsync();                       

            while ((line = reader.ReadLine()) != null)

            {

                System.Console.WriteLine(line);

                currLines.Add(line);

                counter++;

            }

          

        }

      

    }           
}
var AllLines= counter;

Best Regards,

Leon Lu

---

If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.