CODEWITHSUNDEEP
c#uwpstorage
axbeit
axbeit

Reputation: 883

Get all files from folder and their infromation

So I created a sample.txt via UWP and copy/past a sample2.pdf and a sample3.mp4 in the local folder of my UWP App.

So right now I have those 3 files in my folder.

Then I created a class which should save the filename, extension, id and modifiedDate

Now I want to create a list of this class with the information of the sample files. Example of a class Variable would be: filename = sample, extension = .txt, id = sample, modified date = 30.10.2018 09:00

How would I do that?

My Code so far:

public sealed partial class MainPage : Page
{
    Windows.Storage.StorageFolder storageFolder;
    Windows.Storage.StorageFile sampleFile;
    List<FileElements> fileInformation = new List<FileElements>();

    public MainPage()
    {
        this.InitializeComponent();
        moth();
    }

    async void moth()
    {
        storageFolder =
            Windows.Storage.ApplicationData.Current.LocalFolder;
        sampleFile =
            await storageFolder.CreateFileAsync("sample.txt",
                Windows.Storage.CreationCollisionOption.ReplaceExisting);
    }

    public class FileElements
    {
        public string filename { get; set; }
        public string extension { get; set; }
        public string id { get; set; }
        public string modifiedDate { get; set; }
    }
}

I tried to figure it out with the foreach() methode but it doesnt work

"foreach statement cannot operate on variables of type StorageFile because StorageFile does not contain a public definition for GetEnumerator"

Upvotes: 1

Views: 141

Answers (1)

Ashkan Mobayen Khiabani
Ashkan Mobayen Khiabani

Reputation: 34180

DirectoryInfo().GetFiles() returns an array of FileInfo() which contains all information you need, so you can select from it in any way you like:

var result = System.IO.DirectoryInfo dir = new DirectoryInfo(dirPath);
             dir.GetFiles().Select((x,i) => new FileElements {
                filename = Path.GetFileNameWithoutExtension(x.FullName),
                extension = x.Extension,
                id = i.ToString(),
                modifiedDate = x.LastWriteTime.ToString()
            });

Edit (considering your comment):

the above result is an IEnumerable<FileElements> that does not support indexing, but it can be used in a foreach loop. however you can convert it to FileElements[] simply by .ToArray() to be able to use indexing:

var result = System.IO.DirectoryInfo dir = new DirectoryInfo(dirPath);
                 dir.GetFiles().Select((x,i) => new FileElements {
                    filename = Path.GetFileNameWithoutExtension(x.FullName),
                    extension = x.Extension,
                    id = i.ToString(),
                    modifiedDate = x.LastWriteTime.ToString()
                }).ToArray();

Upvotes: 4

Related Questions