WebPage For Users To Upload Files From Multiple Folders-CodePudding

I'm trying to write a web page (ASP.NET Core) to allow users to upload files. My use case however requires the users to potentially select files from multiple locations.

I've written a page that allows users to upload multiple files from a single folder using IFormFile control, my understanding being you can't select files from multiple folders

<form method="post" enctype="multipart/form-data">
    <input type="file" asp-for="Upload" multiple />
    <span asp-validation-for="Upload" />
    <input type="submit" />
</form>

Code Behind File

[BindProperty]
public List<IFormFile> Upload { get; set; }

public async Task OnPostAsync()
{

    foreach (var file in Upload)
    {
        // ToDo - Copy file to temp location
        
    }

}

What I would like to do is copy the files to a temp location (as indicated) and present the user with a list of the uploaded files and the opportunity to upload more files (from different folders). Once complete, the user would then submit that list to be processed.

I've having a little trouble in working out the best way to persist the list of files submitted between each call back to the page.

Thanks in advance

CodePudding user response：

You can try the