[UWP][C#] Unable to delete "user selected folder" in UWP apps C#

Question

i am trying to delete a folder selected by a user using below snippet,

var folderPicker = new FolderPicker()
{
     SuggestedStartLocation = PickerLocationId.DocumentsLibrary
};
folderPicker.FileTypeFilter.Add("*");
var folder = await folderPicker.PickSingleFolderAsync();

await folder.DeleteAsync(StorageDeleteOption.Default);

but i am receiving
System.UnauthorizedAcessException , how to resolve it (or) how to properly delete selected folder

Answer 1

Hi kranthikumar,

Welcome to post your question in Microsoft Q&A!

Thanks for reporting this issue, currently this is a known issue in our internal system.

If you still want to delete folder using FolderPicker, the workaround is that first we need to get the parent folder of the selected folder, then pass the selected folder name to the parent folder to get the folder instance, after that we can delete this selected folder as following:

var folderPicker = new FolderPicker()  
{  
    SuggestedStartLocation = PickerLocationId.DocumentsLibrary  
};  
folderPicker.FileTypeFilter.Add("*");  
var folder = await folderPicker.PickSingleFolderAsync();  
try  
{  
    var parent = await folder.GetParentAsync();  
    var folderToDelete = await parent.GetFolderAsync(folder.Name);  
    await folderToDelete.DeleteAsync();  
}  
  

Thanks.

Answer 2

Long PathTool is a software that will let you easily

delete, copy or rename long path files.