How to Use Folders and Files in Windows Phone 8

The following is the list of operations we will see in this article.

• Create Folder
• Read Folder
• Check if the Folder Exists
• Read all Folders
• Rename Folder
• Delete Folder
• Create File
• Write File
• Read File
• Check if the File Exists
• Read all File
• Rename File
• Delete File
• Copy File
• Move File

Create Folder

StorageFolder folder = await ApplicationData.Current.LocalFolder.CreateFolderAsync("FolderName",CreationCollisionOption.ReplaceExisting);

Read Folder

var folder = await ApplicationData.Current.LocalFolder.GetFolderAsync("FolderName ");
Check if the Folder Exists
try
{
   StorageFolder folder = await ApplicationData.Current.LocalFolder.GetFolderAsync("FolderName");

}
catch(FileNotFoundException ex)
{

}

Read all Folders

var folders = await ApplicationData.Current.LocalFolder.GetFoldersAsync();
foreach (var folder in folders)
{
MessageBox.Show(folder.Name);
}

Rename Folder

var folder = await ApplicationData.Current.LocalFolder.GetFolderAsync("FolderName");
await folder.RenameAsync("RenamedFolder");

Delete Folder

var folder = await ApplicationData.Current.LocalFolder.GetFolderAsync("FolderName");
await folder.DeleteAsync(StorageDeleteOption.PermanentDelete);

Create File

var file = await ApplicationData.Current.LocalFolder.CreateFileAsync("FileName.txt", CreationCollisionOption.ReplaceExisting);

Write File

var file = await ApplicationData.Current.LocalFolder.CreateFileAsync("FileName.txt", CreationCollisionOption.ReplaceExisting);
var stream = await file.OpenAsync(FileAccessMode.ReadWrite);
using (var writer = new DataWriter(stream.GetOutputStreamAt(0)))
{
   writer.WriteString("Welcome to windows phone");
   await writer.StoreAsync();
   await writer.FlushAsync();
}

Read File

var file = await ApplicationData.Current.LocalFolder.GetFileAsync("FileName.txt");
var stream = await file.OpenAsync(FileAccessMode.Read);

using (var reader = new DataReader(stream.GetInputStreamAt(0)))
{
   var bytes = await reader.LoadAsync((uint)stream.Size);
   var s = reader.ReadString(bytes);
   MessageBox.Show(s);
}

Check if a file exists

try
{
   file = await ApplicationData.Current.LocalFolder.GetFileAsync("FileName.txt");
   MessageBox.Show(file.Name);
}
catch (FileNotFoundException ex)
{
   MessageBox.Show("file not found");
}

Read all File

var files = await ApplicationData.Current.LocalFolder.GetFilesAsync();

foreach (var file in files)
{
   MessageBox.Show(file.Name);
}

Rename File

var file = await ApplicationData.Current.LocalFolder.GetFileAsync("FileName.txt");
await file.RenameAsync("FileRename.txt");

Delete File

var file = await ApplicationData.Current.LocalFolder.GetFileAsync("FileName.txt");
await file.DeleteAsync(StorageDeleteOption.PermanentDelete);

Copy File

var file = await ApplicationData.Current.LocalFolder.GetFileAsync("FileName.txt");
var folder = await ApplicationData.Current.LocalFolder.GetFolderAsync("FolderName ");
await file.CopyAsync(folder);

Move File

var file = await ApplicationData.Current.LocalFolder.GetFileAsync("FileName.txt");
var folder = await ApplicationData.Current.LocalFolder.GetFolderAsync("FolderName ");
await file.MoveAsync(folder);

Note

To understand how to create files and folders refer to the link.